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Merge branch 'merge-paraggr' into merge-paraggr-newops

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merge-paraggr-newops
Salvatore Filippone 5 years ago
parent f95d089903 0e27c66a51
commit 77cdfd6cae
382 changed files with 50741 additions and 7407 deletions
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21
README.md
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@ -1,4 +1,4 @@
PSBLAS library, version 3.6
PSBLAS library, version 3.7
===========================
The architecture of the Fortran 2003 sparse BLAS is described in:
@ -110,6 +110,25 @@ Fix all reamining bugs. Bugs? We dont' have any ! ;-)
The PSBLAS team.
---------------
Project lead:
Salvatore Filippone
Contributors (roughly reverse cronological order):
Soren Rasmussen
Zaak Beekman
Ambra Abdullahi Hassan
Pasqua D'Ambra
Alfredo Buttari
Daniela di Serafino
Michele Martone
Michele Colajanni
Fabio Cerioni
Stefano Maiolatesi
Dario Pascucci
RELATED SOFTWARE
----------------

36
ReleaseNews
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@ -1,5 +1,21 @@
WHAT'S NEW
Version 3.7.0
1. Major change at API level: integer kinds reorganization.
Local indices are now of kind PSB_IPK_, whereas global indices
are of kind PSB_LPK_; at configure time it is possible to
choose them independently to be PSB_MPK_ (4 bytes) or PSB_EPK_
(8 bytes), with the constraint that LPK is always at least as
large as IPK.
2. The internals have also been reorganized heavily, with a much
more coherent design and split of functionalities into source
files.
Version 3.6.1
1. Multiple improvements to CDASB.
2. Some additional methods required by the latest versions of MLD
Version 3.5.
1. New Krylov methods methods FCG and GCR are now available.
@ -86,29 +102,9 @@ The solution: either take out the -g option, or, if you really need to
debug, edit Make.inc to force -DMPI_H in place of -DMPI_MOD.
The PSBLAS team.
RELATED SOFTWARE
If you are looking for more sophisticated preconditioners, you may be
interested in the package MLD2P4 from http://github.com/sfilippone/mld2p4-2
Contact: https://github.com/sfilippone/psblas3
Contributors
Salvatore Filippone
Alfredo Buttari
Soren Rasmussen
Ambra Abdullahi Hassan
Pasqua D'Ambra
Daniela di Serafino
Michele Martone
Michele Colajanni
Fabio Cerioni
Stefano Maiolatesi
Dario Pascucci

7
base/comm/internals/psi_covrl_restr.f90
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@ -29,7 +29,12 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_covrl_restr
! These subroutines restore the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
!
!
subroutine psi_covrl_restr_vect(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_covrl_restr_vect
use psb_c_base_vect_mod

5
base/comm/internals/psi_covrl_restr_a.f90
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@ -29,6 +29,11 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_covrl_restr
! These subroutines restore the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
!
subroutine psi_covrl_restrr1(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_covrl_restrr1

5
base/comm/internals/psi_covrl_save.f90
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@ -29,6 +29,11 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_covrl_save
! These subroutines save the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
!
subroutine psi_covrl_save_vect(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_covrl_save_vect
use psb_realloc_mod

6
base/comm/internals/psi_covrl_save_a.f90
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@ -29,7 +29,11 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
!
! Subroutine: psi_covrl_save
! These subroutines save the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
subroutine psi_covrl_saver1(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_covrl_saver1

8
base/comm/internals/psi_covrl_upd.f90
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@ -29,7 +29,13 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_covrl_update
! These subroutines update the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap,
! or for the application of Additive Schwarz preconditioners.
!
!
!
subroutine psi_covrl_upd_vect(x,desc_a,update,info)
use psi_mod, psi_protect_name => psi_covrl_upd_vect
use psb_realloc_mod

6
base/comm/internals/psi_covrl_upd_a.f90
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@ -29,6 +29,12 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_covrl_update
! These subroutines update the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap,
! or for the application of Additive Schwarz preconditioners.
!
!
subroutine psi_covrl_updr1(x,desc_a,update,info)
use psi_mod, psi_protect_name => psi_covrl_updr1

35
base/comm/internals/psi_cswapdata.F90
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@ -32,8 +32,10 @@
!
! File: psi_cswapdata.F90
!
! Subroutine: psi_cswapdatam
! Does the data exchange among processes. Essentially this is doing
!
!
! Subroutine: psi_cswapdata_vect
! Implements the data exchange among processes. Essentially this is doing
! a variable all-to-all data exchange (ALLTOALLV in MPI parlance), but
! it is capable of pruning empty exchanges, which are very likely in out
! application environment. All the variants have the same structure
@ -43,12 +45,15 @@
! C complex(psb_spk_)
! Z complex(psb_dpk_)
! Basically the operation is as follows: on each process, we identify
! sections SND(Y) and RCV(Y); then we do a send on (PACK(SND(Y)));
! then we receive, and we do an update with Y = UNPACK(RCV(Y)) + BETA * Y
! but only on the elements involved in the UNPACK operation.
! sections SND(Y) and RCV(Y); then we do a SEND(PACK(GTH(SND(Y))));
! then we receive, and we do an update with Y = SCT(RCV(Y)) + BETA * Y
! but only on the elements involved in the SCT operation.
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
! This version works on encapsulated vectors, and uses their methods to do GTH and SCT,
! so that special versions (i.e. GPU vectors can override them
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -69,10 +74,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! beta - complex Choose overwrite or sum.
! y - type(psb_@x@_vect_type) The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - complex Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -84,14 +89,6 @@
!
!
!
!
! Subroutine: psi_cswapdata_vect
! Data exchange among processes.
!
! Takes care of Y an exanspulated vector.
!
!
!
subroutine psi_cswapdata_vect(flag,beta,y,desc_a,work,info,data)
use psi_mod, psb_protect_name => psi_cswapdata_vect
@ -263,7 +260,7 @@ subroutine psi_cswap_vidx_vect(iictxt,iicomm,flag,beta,y,idx, &
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
rcv_pt = 1+pnti+psb_n_elem_recv_
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),rcv_pt
p2ptag = psb_complex_swap_tag
@ -426,7 +423,7 @@ end subroutine psi_cswap_vidx_vect
! Subroutine: psi_cswapdata_multivect
! Data exchange among processes.
!
! Takes care of Y an encaspulated vector.
! Takes care of Y an encaspulated multivector.
!
!
subroutine psi_cswapdata_multivect(flag,beta,y,desc_a,work,info,data)
@ -602,7 +599,7 @@ subroutine psi_cswap_vidx_multivect(iictxt,iicomm,flag,beta,y,idx, &
proc_to_comm = idx%v(pnti+psb_proc_id_)
nerv = idx%v(pnti+psb_n_elem_recv_)
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),rcv_pt
p2ptag = psb_complex_swap_tag

28
base/comm/internals/psi_cswapdata_a.F90
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@ -33,9 +33,9 @@
! File: psi_cswapdata.F90
!
! Subroutine: psi_cswapdatam
! Does the data exchange among processes. Essentially this is doing
! Implements the data exchange among processes. Essentially this is doing
! a variable all-to-all data exchange (ALLTOALLV in MPI parlance), but
! it is capable of pruning empty exchanges, which are very likely in out
! it is capable of pruning empty exchanges, which are very likely in our
! application environment. All the variants have the same structure
! In all these subroutines X may be: I Integer
! S real(psb_spk_)
@ -49,6 +49,7 @@
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -69,10 +70,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! beta - complex Choose overwrite or sum.
! y(:,:) - complex The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - complex Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -236,7 +237,7 @@ subroutine psi_cswapidxm(iictxt,iicomm,flag,n,beta,y,idx, &
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = n*nerv
@ -349,7 +350,7 @@ subroutine psi_cswapidxm(iictxt,iicomm,flag,n,beta,y,idx, &
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
p2ptag = psb_complex_swap_tag
call mpi_irecv(rcvbuf(rcv_pt),n*nerv,&
@ -507,7 +508,7 @@ end subroutine psi_cswapidxm
!
!
! Subroutine: psi_cswapdatav
! Does the data exchange among processes. Essentially this is doing
! Implements the data exchange among processes. Essentially this is doing
! a variable all-to-all data exchange (ALLTOALLV in MPI parlance), but
! it is capable of pruning empty exchanges, which are very likely in out
! application environment. All the variants have the same structure
@ -523,6 +524,7 @@ end subroutine psi_cswapidxm
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -543,10 +545,10 @@ end subroutine psi_cswapidxm
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:) - X The data area
! beta - complex Choose overwrite or sum.
! y(:) - complex The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - complex Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -721,7 +723,7 @@ subroutine psi_cswapidxv(iictxt,iicomm,flag,beta,y,idx, &
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = nerv
@ -835,7 +837,7 @@ subroutine psi_cswapidxv(iictxt,iicomm,flag,beta,y,idx, &
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
p2ptag = psb_complex_swap_tag
call mpi_irecv(rcvbuf(rcv_pt),nerv,&

39
base/comm/internals/psi_cswaptran.F90
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@ -32,8 +32,8 @@
!
! File: psi_cswaptran.F90
!
! Subroutine: psi_cswaptranm
! Does the data exchange among processes. This is similar to Xswapdata, but
! Subroutine: psi_cswaptran_vect
! Implements the data exchange among processes. This is similar to Xswapdata, but
! the list is read "in reverse", i.e. indices that are normally SENT are used
! for the RECEIVE part and vice-versa. This is the basic data exchange operation
! for doing the product of a sparse matrix by a vector.
@ -47,12 +47,16 @@
! C complex(psb_spk_)
! Z complex(psb_dpk_)
! Basically the operation is as follows: on each process, we identify
! sections SND(Y) and RCV(Y); then we do a SEND(PACK(SND(Y)));
! then we receive, and we do an update with Y = UNPACK(RCV(Y)) + BETA * Y
! but only on the elements involved in the UNPACK operation.
! sections SND(Y) and RCV(Y); then we do a SEND(PACK(GTH(SND(Y))));
! then we receive, and we do an update with Y = SCT(RCV(Y)) + BETA * Y
! but only on the elements involved in the SCT operation.
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
! This version works on encapsulated vectors, and uses their methods to do GTH and SCT,
! so that special versions (i.e. GPU vectors can override them
!
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -73,10 +77,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! beta - complex Choose overwrite or sum.
! y - type(psb_c_vect_type) The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - complex Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -87,13 +91,6 @@
! psb_comm_mov_ use ovr_mst_idx
!
!
!
! Subroutine: psi_cswaptran_vect
! Data exchange among processes.
!
! Takes care of Y an exanspulated vector.
!
!
subroutine psi_cswaptran_vect(flag,beta,y,desc_a,work,info,data)
use psi_mod, psb_protect_name => psi_cswaptran_vect
@ -171,7 +168,7 @@ end subroutine psi_cswaptran_vect
! Subroutine: psi_ctran_vidx_vect
! Data exchange among processes.
!
! Takes care of Y an exanspulated vector. Relies on the gather/scatter methods
! Takes care of Y an encapsulated vector. Relies on the gather/scatter methods
! of vectors.
!
! The real workhorse: the outer routine will only choose the index list
@ -269,7 +266,7 @@ subroutine psi_ctran_vidx_vect(iictxt,iicomm,flag,beta,y,idx,&
snd_pt = 1+pnti+nerv+psb_n_elem_send_
rcv_pt = 1+pnti+psb_n_elem_recv_
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),rcv_pt
call mpi_irecv(y%combuf(snd_pt),nesd,&
@ -436,10 +433,10 @@ end subroutine psi_ctran_vidx_vect
!
!
!
! Subroutine: psi_cswaptran_vect
! Subroutine: psi_cswaptran_multivect
! Data exchange among processes.
!
! Takes care of Y an encaspulated vector.
! Takes care of Y an encaspulated multivector.
!
!
subroutine psi_cswaptran_multivect(flag,beta,y,desc_a,work,info,data)
@ -616,7 +613,7 @@ subroutine psi_ctran_vidx_multivect(iictxt,iicomm,flag,beta,y,idx,&
proc_to_comm = idx%v(pnti+psb_proc_id_)
nerv = idx%v(pnti+psb_n_elem_recv_)
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),snd_pt
call mpi_irecv(y%combuf(snd_pt),n*nesd,&

26
base/comm/internals/psi_cswaptran_a.F90
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@ -33,7 +33,7 @@
! File: psi_cswaptran.F90
!
! Subroutine: psi_cswaptranm
! Does the data exchange among processes. This is similar to Xswapdata, but
! Implements the data exchange among processes. This is similar to Xswapdata, but
! the list is read "in reverse", i.e. indices that are normally SENT are used
! for the RECEIVE part and vice-versa. This is the basic data exchange operation
! for doing the product of a sparse matrix by a vector.
@ -53,6 +53,7 @@
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -73,10 +74,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! beta - complex Choose overwrite or sum.
! y(:,:) - complex The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - complex Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -241,7 +242,7 @@ subroutine psi_ctranidxm(iictxt,iicomm,flag,n,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = n*nerv
@ -359,7 +360,7 @@ subroutine psi_ctranidxm(iictxt,iicomm,flag,n,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
p2ptag = psb_complex_swap_tag
call mpi_irecv(sndbuf(snd_pt),n*nesd,&
@ -516,7 +517,7 @@ end subroutine psi_ctranidxm
!
!
! Subroutine: psi_cswaptranv
! Does the data exchange among processes. This is similar to Xswapdata, but
! Implements the data exchange among processes. This is similar to Xswapdata, but
! the list is read "in reverse", i.e. indices that are normally SENT are used
! for the RECEIVE part and vice-versa. This is the basic data exchange operation
! for doing the product of a sparse matrix by a vector.
@ -536,6 +537,7 @@ end subroutine psi_ctranidxm
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -556,10 +558,10 @@ end subroutine psi_ctranidxm
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:) - X The data area
! beta - complex Choose overwrite or sum.
! y(:) - complex The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - complex Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -734,7 +736,7 @@ subroutine psi_ctranidxv(iictxt,iicomm,flag,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = nerv
@ -852,7 +854,7 @@ subroutine psi_ctranidxv(iictxt,iicomm,flag,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
p2ptag = psb_complex_swap_tag
call mpi_irecv(sndbuf(snd_pt),nesd,&

7
base/comm/internals/psi_dovrl_restr.f90
Unescape Escape View File

@ -29,7 +29,12 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_dovrl_restr
! These subroutines restore the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
!
!
subroutine psi_dovrl_restr_vect(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_dovrl_restr_vect
use psb_d_base_vect_mod

5
base/comm/internals/psi_dovrl_restr_a.f90
Unescape Escape View File

@ -29,6 +29,11 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_dovrl_restr
! These subroutines restore the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
!
subroutine psi_dovrl_restrr1(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_dovrl_restrr1

5
base/comm/internals/psi_dovrl_save.f90
Unescape Escape View File

@ -29,6 +29,11 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_dovrl_save
! These subroutines save the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
!
subroutine psi_dovrl_save_vect(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_dovrl_save_vect
use psb_realloc_mod

6
base/comm/internals/psi_dovrl_save_a.f90
Unescape Escape View File

@ -29,7 +29,11 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
!
! Subroutine: psi_dovrl_save
! These subroutines save the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
subroutine psi_dovrl_saver1(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_dovrl_saver1

8
base/comm/internals/psi_dovrl_upd.f90
Unescape Escape View File

@ -29,7 +29,13 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_dovrl_update
! These subroutines update the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap,
! or for the application of Additive Schwarz preconditioners.
!
!
!
subroutine psi_dovrl_upd_vect(x,desc_a,update,info)
use psi_mod, psi_protect_name => psi_dovrl_upd_vect
use psb_realloc_mod

6
base/comm/internals/psi_dovrl_upd_a.f90
Unescape Escape View File

@ -29,6 +29,12 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_dovrl_update
! These subroutines update the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap,
! or for the application of Additive Schwarz preconditioners.
!
!
subroutine psi_dovrl_updr1(x,desc_a,update,info)
use psi_mod, psi_protect_name => psi_dovrl_updr1

35
base/comm/internals/psi_dswapdata.F90
Unescape Escape View File

@ -32,8 +32,10 @@
!
! File: psi_dswapdata.F90
!
! Subroutine: psi_dswapdatam
! Does the data exchange among processes. Essentially this is doing
!
!
! Subroutine: psi_dswapdata_vect
! Implements the data exchange among processes. Essentially this is doing
! a variable all-to-all data exchange (ALLTOALLV in MPI parlance), but
! it is capable of pruning empty exchanges, which are very likely in out
! application environment. All the variants have the same structure
@ -43,12 +45,15 @@
! C complex(psb_spk_)
! Z complex(psb_dpk_)
! Basically the operation is as follows: on each process, we identify
! sections SND(Y) and RCV(Y); then we do a send on (PACK(SND(Y)));
! then we receive, and we do an update with Y = UNPACK(RCV(Y)) + BETA * Y
! but only on the elements involved in the UNPACK operation.
! sections SND(Y) and RCV(Y); then we do a SEND(PACK(GTH(SND(Y))));
! then we receive, and we do an update with Y = SCT(RCV(Y)) + BETA * Y
! but only on the elements involved in the SCT operation.
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
! This version works on encapsulated vectors, and uses their methods to do GTH and SCT,
! so that special versions (i.e. GPU vectors can override them
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -69,10 +74,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! beta - real Choose overwrite or sum.
! y - type(psb_@x@_vect_type) The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - real Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -84,14 +89,6 @@
!
!
!
!
! Subroutine: psi_dswapdata_vect
! Data exchange among processes.
!
! Takes care of Y an exanspulated vector.
!
!
!
subroutine psi_dswapdata_vect(flag,beta,y,desc_a,work,info,data)
use psi_mod, psb_protect_name => psi_dswapdata_vect
@ -263,7 +260,7 @@ subroutine psi_dswap_vidx_vect(iictxt,iicomm,flag,beta,y,idx, &
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
rcv_pt = 1+pnti+psb_n_elem_recv_
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),rcv_pt
p2ptag = psb_double_swap_tag
@ -426,7 +423,7 @@ end subroutine psi_dswap_vidx_vect
! Subroutine: psi_dswapdata_multivect
! Data exchange among processes.
!
! Takes care of Y an encaspulated vector.
! Takes care of Y an encaspulated multivector.
!
!
subroutine psi_dswapdata_multivect(flag,beta,y,desc_a,work,info,data)
@ -602,7 +599,7 @@ subroutine psi_dswap_vidx_multivect(iictxt,iicomm,flag,beta,y,idx, &
proc_to_comm = idx%v(pnti+psb_proc_id_)
nerv = idx%v(pnti+psb_n_elem_recv_)
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),rcv_pt
p2ptag = psb_double_swap_tag

28
base/comm/internals/psi_dswapdata_a.F90
Unescape Escape View File

@ -33,9 +33,9 @@
! File: psi_dswapdata.F90
!
! Subroutine: psi_dswapdatam
! Does the data exchange among processes. Essentially this is doing
! Implements the data exchange among processes. Essentially this is doing
! a variable all-to-all data exchange (ALLTOALLV in MPI parlance), but
! it is capable of pruning empty exchanges, which are very likely in out
! it is capable of pruning empty exchanges, which are very likely in our
! application environment. All the variants have the same structure
! In all these subroutines X may be: I Integer
! S real(psb_spk_)
@ -49,6 +49,7 @@
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -69,10 +70,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! beta - real Choose overwrite or sum.
! y(:,:) - real The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - real Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -236,7 +237,7 @@ subroutine psi_dswapidxm(iictxt,iicomm,flag,n,beta,y,idx, &
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = n*nerv
@ -349,7 +350,7 @@ subroutine psi_dswapidxm(iictxt,iicomm,flag,n,beta,y,idx, &
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
p2ptag = psb_double_swap_tag
call mpi_irecv(rcvbuf(rcv_pt),n*nerv,&
@ -507,7 +508,7 @@ end subroutine psi_dswapidxm
!
!
! Subroutine: psi_dswapdatav
! Does the data exchange among processes. Essentially this is doing
! Implements the data exchange among processes. Essentially this is doing
! a variable all-to-all data exchange (ALLTOALLV in MPI parlance), but
! it is capable of pruning empty exchanges, which are very likely in out
! application environment. All the variants have the same structure
@ -523,6 +524,7 @@ end subroutine psi_dswapidxm
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -543,10 +545,10 @@ end subroutine psi_dswapidxm
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:) - X The data area
! beta - real Choose overwrite or sum.
! y(:) - real The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - real Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -721,7 +723,7 @@ subroutine psi_dswapidxv(iictxt,iicomm,flag,beta,y,idx, &
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = nerv
@ -835,7 +837,7 @@ subroutine psi_dswapidxv(iictxt,iicomm,flag,beta,y,idx, &
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
p2ptag = psb_double_swap_tag
call mpi_irecv(rcvbuf(rcv_pt),nerv,&

39
base/comm/internals/psi_dswaptran.F90
Unescape Escape View File

@ -32,8 +32,8 @@
!
! File: psi_dswaptran.F90
!
! Subroutine: psi_dswaptranm
! Does the data exchange among processes. This is similar to Xswapdata, but
! Subroutine: psi_dswaptran_vect
! Implements the data exchange among processes. This is similar to Xswapdata, but
! the list is read "in reverse", i.e. indices that are normally SENT are used
! for the RECEIVE part and vice-versa. This is the basic data exchange operation
! for doing the product of a sparse matrix by a vector.
@ -47,12 +47,16 @@
! C complex(psb_spk_)
! Z complex(psb_dpk_)
! Basically the operation is as follows: on each process, we identify
! sections SND(Y) and RCV(Y); then we do a SEND(PACK(SND(Y)));
! then we receive, and we do an update with Y = UNPACK(RCV(Y)) + BETA * Y
! but only on the elements involved in the UNPACK operation.
! sections SND(Y) and RCV(Y); then we do a SEND(PACK(GTH(SND(Y))));
! then we receive, and we do an update with Y = SCT(RCV(Y)) + BETA * Y
! but only on the elements involved in the SCT operation.
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
! This version works on encapsulated vectors, and uses their methods to do GTH and SCT,
! so that special versions (i.e. GPU vectors can override them
!
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -73,10 +77,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! beta - real Choose overwrite or sum.
! y - type(psb_d_vect_type) The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - real Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -87,13 +91,6 @@
! psb_comm_mov_ use ovr_mst_idx
!
!
!
! Subroutine: psi_dswaptran_vect
! Data exchange among processes.
!
! Takes care of Y an exanspulated vector.
!
!
subroutine psi_dswaptran_vect(flag,beta,y,desc_a,work,info,data)
use psi_mod, psb_protect_name => psi_dswaptran_vect
@ -171,7 +168,7 @@ end subroutine psi_dswaptran_vect
! Subroutine: psi_dtran_vidx_vect
! Data exchange among processes.
!
! Takes care of Y an exanspulated vector. Relies on the gather/scatter methods
! Takes care of Y an encapsulated vector. Relies on the gather/scatter methods
! of vectors.
!
! The real workhorse: the outer routine will only choose the index list
@ -269,7 +266,7 @@ subroutine psi_dtran_vidx_vect(iictxt,iicomm,flag,beta,y,idx,&
snd_pt = 1+pnti+nerv+psb_n_elem_send_
rcv_pt = 1+pnti+psb_n_elem_recv_
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),rcv_pt
call mpi_irecv(y%combuf(snd_pt),nesd,&
@ -436,10 +433,10 @@ end subroutine psi_dtran_vidx_vect
!
!
!
! Subroutine: psi_dswaptran_vect
! Subroutine: psi_dswaptran_multivect
! Data exchange among processes.
!
! Takes care of Y an encaspulated vector.
! Takes care of Y an encaspulated multivector.
!
!
subroutine psi_dswaptran_multivect(flag,beta,y,desc_a,work,info,data)
@ -616,7 +613,7 @@ subroutine psi_dtran_vidx_multivect(iictxt,iicomm,flag,beta,y,idx,&
proc_to_comm = idx%v(pnti+psb_proc_id_)
nerv = idx%v(pnti+psb_n_elem_recv_)
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),snd_pt
call mpi_irecv(y%combuf(snd_pt),n*nesd,&

26
base/comm/internals/psi_dswaptran_a.F90
Unescape Escape View File

@ -33,7 +33,7 @@
! File: psi_dswaptran.F90
!
! Subroutine: psi_dswaptranm
! Does the data exchange among processes. This is similar to Xswapdata, but
! Implements the data exchange among processes. This is similar to Xswapdata, but
! the list is read "in reverse", i.e. indices that are normally SENT are used
! for the RECEIVE part and vice-versa. This is the basic data exchange operation
! for doing the product of a sparse matrix by a vector.
@ -53,6 +53,7 @@
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -73,10 +74,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! beta - real Choose overwrite or sum.
! y(:,:) - real The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - real Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -241,7 +242,7 @@ subroutine psi_dtranidxm(iictxt,iicomm,flag,n,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = n*nerv
@ -359,7 +360,7 @@ subroutine psi_dtranidxm(iictxt,iicomm,flag,n,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
p2ptag = psb_double_swap_tag
call mpi_irecv(sndbuf(snd_pt),n*nesd,&
@ -516,7 +517,7 @@ end subroutine psi_dtranidxm
!
!
! Subroutine: psi_dswaptranv
! Does the data exchange among processes. This is similar to Xswapdata, but
! Implements the data exchange among processes. This is similar to Xswapdata, but
! the list is read "in reverse", i.e. indices that are normally SENT are used
! for the RECEIVE part and vice-versa. This is the basic data exchange operation
! for doing the product of a sparse matrix by a vector.
@ -536,6 +537,7 @@ end subroutine psi_dtranidxm
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -556,10 +558,10 @@ end subroutine psi_dtranidxm
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:) - X The data area
! beta - real Choose overwrite or sum.
! y(:) - real The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - real Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -734,7 +736,7 @@ subroutine psi_dtranidxv(iictxt,iicomm,flag,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = nerv
@ -852,7 +854,7 @@ subroutine psi_dtranidxv(iictxt,iicomm,flag,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
p2ptag = psb_double_swap_tag
call mpi_irecv(sndbuf(snd_pt),nesd,&

5
base/comm/internals/psi_eovrl_restr_a.f90
Unescape Escape View File

@ -29,6 +29,11 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_eovrl_restr
! These subroutines restore the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
!
subroutine psi_eovrl_restrr1(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_eovrl_restrr1

6
base/comm/internals/psi_eovrl_save_a.f90
Unescape Escape View File

@ -29,7 +29,11 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
!
! Subroutine: psi_eovrl_save
! These subroutines save the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
subroutine psi_eovrl_saver1(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_eovrl_saver1

6
base/comm/internals/psi_eovrl_upd_a.f90
Unescape Escape View File

@ -29,6 +29,12 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_eovrl_update
! These subroutines update the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap,
! or for the application of Additive Schwarz preconditioners.
!
!
subroutine psi_eovrl_updr1(x,desc_a,update,info)
use psi_mod, psi_protect_name => psi_eovrl_updr1

28
base/comm/internals/psi_eswapdata_a.F90
Unescape Escape View File

@ -33,9 +33,9 @@
! File: psi_eswapdata.F90
!
! Subroutine: psi_eswapdatam
! Does the data exchange among processes. Essentially this is doing
! Implements the data exchange among processes. Essentially this is doing
! a variable all-to-all data exchange (ALLTOALLV in MPI parlance), but
! it is capable of pruning empty exchanges, which are very likely in out
! it is capable of pruning empty exchanges, which are very likely in our
! application environment. All the variants have the same structure
! In all these subroutines X may be: I Integer
! S real(psb_spk_)
@ -49,6 +49,7 @@
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -69,10 +70,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! beta - integer Choose overwrite or sum.
! y(:,:) - integer The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - integer Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -236,7 +237,7 @@ subroutine psi_eswapidxm(iictxt,iicomm,flag,n,beta,y,idx, &
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = n*nerv
@ -349,7 +350,7 @@ subroutine psi_eswapidxm(iictxt,iicomm,flag,n,beta,y,idx, &
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
p2ptag = psb_int8_swap_tag
call mpi_irecv(rcvbuf(rcv_pt),n*nerv,&
@ -507,7 +508,7 @@ end subroutine psi_eswapidxm
!
!
! Subroutine: psi_eswapdatav
! Does the data exchange among processes. Essentially this is doing
! Implements the data exchange among processes. Essentially this is doing
! a variable all-to-all data exchange (ALLTOALLV in MPI parlance), but
! it is capable of pruning empty exchanges, which are very likely in out
! application environment. All the variants have the same structure
@ -523,6 +524,7 @@ end subroutine psi_eswapidxm
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -543,10 +545,10 @@ end subroutine psi_eswapidxm
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:) - X The data area
! beta - integer Choose overwrite or sum.
! y(:) - integer The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - integer Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -721,7 +723,7 @@ subroutine psi_eswapidxv(iictxt,iicomm,flag,beta,y,idx, &
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = nerv
@ -835,7 +837,7 @@ subroutine psi_eswapidxv(iictxt,iicomm,flag,beta,y,idx, &
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
p2ptag = psb_int8_swap_tag
call mpi_irecv(rcvbuf(rcv_pt),nerv,&

26
base/comm/internals/psi_eswaptran_a.F90
Unescape Escape View File

@ -33,7 +33,7 @@
! File: psi_eswaptran.F90
!
! Subroutine: psi_eswaptranm
! Does the data exchange among processes. This is similar to Xswapdata, but
! Implements the data exchange among processes. This is similar to Xswapdata, but
! the list is read "in reverse", i.e. indices that are normally SENT are used
! for the RECEIVE part and vice-versa. This is the basic data exchange operation
! for doing the product of a sparse matrix by a vector.
@ -53,6 +53,7 @@
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -73,10 +74,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! beta - integer Choose overwrite or sum.
! y(:,:) - integer The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - integer Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -241,7 +242,7 @@ subroutine psi_etranidxm(iictxt,iicomm,flag,n,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = n*nerv
@ -359,7 +360,7 @@ subroutine psi_etranidxm(iictxt,iicomm,flag,n,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
p2ptag = psb_int8_swap_tag
call mpi_irecv(sndbuf(snd_pt),n*nesd,&
@ -516,7 +517,7 @@ end subroutine psi_etranidxm
!
!
! Subroutine: psi_eswaptranv
! Does the data exchange among processes. This is similar to Xswapdata, but
! Implements the data exchange among processes. This is similar to Xswapdata, but
! the list is read "in reverse", i.e. indices that are normally SENT are used
! for the RECEIVE part and vice-versa. This is the basic data exchange operation
! for doing the product of a sparse matrix by a vector.
@ -536,6 +537,7 @@ end subroutine psi_etranidxm
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -556,10 +558,10 @@ end subroutine psi_etranidxm
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:) - X The data area
! beta - integer Choose overwrite or sum.
! y(:) - integer The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - integer Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -734,7 +736,7 @@ subroutine psi_etranidxv(iictxt,iicomm,flag,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = nerv
@ -852,7 +854,7 @@ subroutine psi_etranidxv(iictxt,iicomm,flag,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
p2ptag = psb_int8_swap_tag
call mpi_irecv(sndbuf(snd_pt),nesd,&

7
base/comm/internals/psi_iovrl_restr.f90
Unescape Escape View File

@ -29,7 +29,12 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_iovrl_restr
! These subroutines restore the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
!
!
subroutine psi_iovrl_restr_vect(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_iovrl_restr_vect
use psb_i_base_vect_mod

5
base/comm/internals/psi_iovrl_save.f90
Unescape Escape View File

@ -29,6 +29,11 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_iovrl_save
! These subroutines save the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
!
subroutine psi_iovrl_save_vect(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_iovrl_save_vect
use psb_realloc_mod

8
base/comm/internals/psi_iovrl_upd.f90
Unescape Escape View File

@ -29,7 +29,13 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_iovrl_update
! These subroutines update the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap,
! or for the application of Additive Schwarz preconditioners.
!
!
!
subroutine psi_iovrl_upd_vect(x,desc_a,update,info)
use psi_mod, psi_protect_name => psi_iovrl_upd_vect
use psb_realloc_mod

35
base/comm/internals/psi_iswapdata.F90
Unescape Escape View File

@ -32,8 +32,10 @@
!
! File: psi_iswapdata.F90
!
! Subroutine: psi_iswapdatam
! Does the data exchange among processes. Essentially this is doing
!
!
! Subroutine: psi_iswapdata_vect
! Implements the data exchange among processes. Essentially this is doing
! a variable all-to-all data exchange (ALLTOALLV in MPI parlance), but
! it is capable of pruning empty exchanges, which are very likely in out
! application environment. All the variants have the same structure
@ -43,12 +45,15 @@
! C complex(psb_spk_)
! Z complex(psb_dpk_)
! Basically the operation is as follows: on each process, we identify
! sections SND(Y) and RCV(Y); then we do a send on (PACK(SND(Y)));
! then we receive, and we do an update with Y = UNPACK(RCV(Y)) + BETA * Y
! but only on the elements involved in the UNPACK operation.
! sections SND(Y) and RCV(Y); then we do a SEND(PACK(GTH(SND(Y))));
! then we receive, and we do an update with Y = SCT(RCV(Y)) + BETA * Y
! but only on the elements involved in the SCT operation.
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
! This version works on encapsulated vectors, and uses their methods to do GTH and SCT,
! so that special versions (i.e. GPU vectors can override them
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -69,10 +74,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! beta - integer Choose overwrite or sum.
! y - type(psb_@x@_vect_type) The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - integer Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -84,14 +89,6 @@
!
!
!
!
! Subroutine: psi_iswapdata_vect
! Data exchange among processes.
!
! Takes care of Y an exanspulated vector.
!
!
!
subroutine psi_iswapdata_vect(flag,beta,y,desc_a,work,info,data)
use psi_mod, psb_protect_name => psi_iswapdata_vect
@ -263,7 +260,7 @@ subroutine psi_iswap_vidx_vect(iictxt,iicomm,flag,beta,y,idx, &
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
rcv_pt = 1+pnti+psb_n_elem_recv_
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),rcv_pt
p2ptag = psb_int_swap_tag
@ -426,7 +423,7 @@ end subroutine psi_iswap_vidx_vect
! Subroutine: psi_iswapdata_multivect
! Data exchange among processes.
!
! Takes care of Y an encaspulated vector.
! Takes care of Y an encaspulated multivector.
!
!
subroutine psi_iswapdata_multivect(flag,beta,y,desc_a,work,info,data)
@ -602,7 +599,7 @@ subroutine psi_iswap_vidx_multivect(iictxt,iicomm,flag,beta,y,idx, &
proc_to_comm = idx%v(pnti+psb_proc_id_)
nerv = idx%v(pnti+psb_n_elem_recv_)
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),rcv_pt
p2ptag = psb_int_swap_tag

39
base/comm/internals/psi_iswaptran.F90
Unescape Escape View File

@ -32,8 +32,8 @@
!
! File: psi_iswaptran.F90
!
! Subroutine: psi_iswaptranm
! Does the data exchange among processes. This is similar to Xswapdata, but
! Subroutine: psi_iswaptran_vect
! Implements the data exchange among processes. This is similar to Xswapdata, but
! the list is read "in reverse", i.e. indices that are normally SENT are used
! for the RECEIVE part and vice-versa. This is the basic data exchange operation
! for doing the product of a sparse matrix by a vector.
@ -47,12 +47,16 @@
! C complex(psb_spk_)
! Z complex(psb_dpk_)
! Basically the operation is as follows: on each process, we identify
! sections SND(Y) and RCV(Y); then we do a SEND(PACK(SND(Y)));
! then we receive, and we do an update with Y = UNPACK(RCV(Y)) + BETA * Y
! but only on the elements involved in the UNPACK operation.
! sections SND(Y) and RCV(Y); then we do a SEND(PACK(GTH(SND(Y))));
! then we receive, and we do an update with Y = SCT(RCV(Y)) + BETA * Y
! but only on the elements involved in the SCT operation.
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
! This version works on encapsulated vectors, and uses their methods to do GTH and SCT,
! so that special versions (i.e. GPU vectors can override them
!
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -73,10 +77,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! beta - integer Choose overwrite or sum.
! y - type(psb_i_vect_type) The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - integer Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -87,13 +91,6 @@
! psb_comm_mov_ use ovr_mst_idx
!
!
!
! Subroutine: psi_iswaptran_vect
! Data exchange among processes.
!
! Takes care of Y an exanspulated vector.
!
!
subroutine psi_iswaptran_vect(flag,beta,y,desc_a,work,info,data)
use psi_mod, psb_protect_name => psi_iswaptran_vect
@ -171,7 +168,7 @@ end subroutine psi_iswaptran_vect
! Subroutine: psi_itran_vidx_vect
! Data exchange among processes.
!
! Takes care of Y an exanspulated vector. Relies on the gather/scatter methods
! Takes care of Y an encapsulated vector. Relies on the gather/scatter methods
! of vectors.
!
! The real workhorse: the outer routine will only choose the index list
@ -269,7 +266,7 @@ subroutine psi_itran_vidx_vect(iictxt,iicomm,flag,beta,y,idx,&
snd_pt = 1+pnti+nerv+psb_n_elem_send_
rcv_pt = 1+pnti+psb_n_elem_recv_
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),rcv_pt
call mpi_irecv(y%combuf(snd_pt),nesd,&
@ -436,10 +433,10 @@ end subroutine psi_itran_vidx_vect
!
!
!
! Subroutine: psi_iswaptran_vect
! Subroutine: psi_iswaptran_multivect
! Data exchange among processes.
!
! Takes care of Y an encaspulated vector.
! Takes care of Y an encaspulated multivector.
!
!
subroutine psi_iswaptran_multivect(flag,beta,y,desc_a,work,info,data)
@ -616,7 +613,7 @@ subroutine psi_itran_vidx_multivect(iictxt,iicomm,flag,beta,y,idx,&
proc_to_comm = idx%v(pnti+psb_proc_id_)
nerv = idx%v(pnti+psb_n_elem_recv_)
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),snd_pt
call mpi_irecv(y%combuf(snd_pt),n*nesd,&

7
base/comm/internals/psi_lovrl_restr.f90
Unescape Escape View File

@ -29,7 +29,12 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_lovrl_restr
! These subroutines restore the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
!
!
subroutine psi_lovrl_restr_vect(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_lovrl_restr_vect
use psb_l_base_vect_mod

5
base/comm/internals/psi_lovrl_save.f90
Unescape Escape View File

@ -29,6 +29,11 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_lovrl_save
! These subroutines save the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
!
subroutine psi_lovrl_save_vect(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_lovrl_save_vect
use psb_realloc_mod

8
base/comm/internals/psi_lovrl_upd.f90
Unescape Escape View File

@ -29,7 +29,13 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_lovrl_update
! These subroutines update the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap,
! or for the application of Additive Schwarz preconditioners.
!
!
!
subroutine psi_lovrl_upd_vect(x,desc_a,update,info)
use psi_mod, psi_protect_name => psi_lovrl_upd_vect
use psb_realloc_mod

35
base/comm/internals/psi_lswapdata.F90
Unescape Escape View File

@ -32,8 +32,10 @@
!
! File: psi_lswapdata.F90
!
! Subroutine: psi_lswapdatam
! Does the data exchange among processes. Essentially this is doing
!
!
! Subroutine: psi_lswapdata_vect
! Implements the data exchange among processes. Essentially this is doing
! a variable all-to-all data exchange (ALLTOALLV in MPI parlance), but
! it is capable of pruning empty exchanges, which are very likely in out
! application environment. All the variants have the same structure
@ -43,12 +45,15 @@
! C complex(psb_spk_)
! Z complex(psb_dpk_)
! Basically the operation is as follows: on each process, we identify
! sections SND(Y) and RCV(Y); then we do a send on (PACK(SND(Y)));
! then we receive, and we do an update with Y = UNPACK(RCV(Y)) + BETA * Y
! but only on the elements involved in the UNPACK operation.
! sections SND(Y) and RCV(Y); then we do a SEND(PACK(GTH(SND(Y))));
! then we receive, and we do an update with Y = SCT(RCV(Y)) + BETA * Y
! but only on the elements involved in the SCT operation.
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
! This version works on encapsulated vectors, and uses their methods to do GTH and SCT,
! so that special versions (i.e. GPU vectors can override them
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -69,10 +74,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! beta - integer Choose overwrite or sum.
! y - type(psb_@x@_vect_type) The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - integer Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -84,14 +89,6 @@
!
!
!
!
! Subroutine: psi_lswapdata_vect
! Data exchange among processes.
!
! Takes care of Y an exanspulated vector.
!
!
!
subroutine psi_lswapdata_vect(flag,beta,y,desc_a,work,info,data)
use psi_mod, psb_protect_name => psi_lswapdata_vect
@ -263,7 +260,7 @@ subroutine psi_lswap_vidx_vect(iictxt,iicomm,flag,beta,y,idx, &
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
rcv_pt = 1+pnti+psb_n_elem_recv_
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),rcv_pt
p2ptag = psb_long_swap_tag
@ -426,7 +423,7 @@ end subroutine psi_lswap_vidx_vect
! Subroutine: psi_lswapdata_multivect
! Data exchange among processes.
!
! Takes care of Y an encaspulated vector.
! Takes care of Y an encaspulated multivector.
!
!
subroutine psi_lswapdata_multivect(flag,beta,y,desc_a,work,info,data)
@ -602,7 +599,7 @@ subroutine psi_lswap_vidx_multivect(iictxt,iicomm,flag,beta,y,idx, &
proc_to_comm = idx%v(pnti+psb_proc_id_)
nerv = idx%v(pnti+psb_n_elem_recv_)
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),rcv_pt
p2ptag = psb_long_swap_tag

39
base/comm/internals/psi_lswaptran.F90
Unescape Escape View File

@ -32,8 +32,8 @@
!
! File: psi_lswaptran.F90
!
! Subroutine: psi_lswaptranm
! Does the data exchange among processes. This is similar to Xswapdata, but
! Subroutine: psi_lswaptran_vect
! Implements the data exchange among processes. This is similar to Xswapdata, but
! the list is read "in reverse", i.e. indices that are normally SENT are used
! for the RECEIVE part and vice-versa. This is the basic data exchange operation
! for doing the product of a sparse matrix by a vector.
@ -47,12 +47,16 @@
! C complex(psb_spk_)
! Z complex(psb_dpk_)
! Basically the operation is as follows: on each process, we identify
! sections SND(Y) and RCV(Y); then we do a SEND(PACK(SND(Y)));
! then we receive, and we do an update with Y = UNPACK(RCV(Y)) + BETA * Y
! but only on the elements involved in the UNPACK operation.
! sections SND(Y) and RCV(Y); then we do a SEND(PACK(GTH(SND(Y))));
! then we receive, and we do an update with Y = SCT(RCV(Y)) + BETA * Y
! but only on the elements involved in the SCT operation.
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
! This version works on encapsulated vectors, and uses their methods to do GTH and SCT,
! so that special versions (i.e. GPU vectors can override them
!
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -73,10 +77,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! beta - integer Choose overwrite or sum.
! y - type(psb_l_vect_type) The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - integer Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -87,13 +91,6 @@
! psb_comm_mov_ use ovr_mst_idx
!
!
!
! Subroutine: psi_lswaptran_vect
! Data exchange among processes.
!
! Takes care of Y an exanspulated vector.
!
!
subroutine psi_lswaptran_vect(flag,beta,y,desc_a,work,info,data)
use psi_mod, psb_protect_name => psi_lswaptran_vect
@ -171,7 +168,7 @@ end subroutine psi_lswaptran_vect
! Subroutine: psi_ltran_vidx_vect
! Data exchange among processes.
!
! Takes care of Y an exanspulated vector. Relies on the gather/scatter methods
! Takes care of Y an encapsulated vector. Relies on the gather/scatter methods
! of vectors.
!
! The real workhorse: the outer routine will only choose the index list
@ -269,7 +266,7 @@ subroutine psi_ltran_vidx_vect(iictxt,iicomm,flag,beta,y,idx,&
snd_pt = 1+pnti+nerv+psb_n_elem_send_
rcv_pt = 1+pnti+psb_n_elem_recv_
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),rcv_pt
call mpi_irecv(y%combuf(snd_pt),nesd,&
@ -436,10 +433,10 @@ end subroutine psi_ltran_vidx_vect
!
!
!
! Subroutine: psi_lswaptran_vect
! Subroutine: psi_lswaptran_multivect
! Data exchange among processes.
!
! Takes care of Y an encaspulated vector.
! Takes care of Y an encaspulated multivector.
!
!
subroutine psi_lswaptran_multivect(flag,beta,y,desc_a,work,info,data)
@ -616,7 +613,7 @@ subroutine psi_ltran_vidx_multivect(iictxt,iicomm,flag,beta,y,idx,&
proc_to_comm = idx%v(pnti+psb_proc_id_)
nerv = idx%v(pnti+psb_n_elem_recv_)
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),snd_pt
call mpi_irecv(y%combuf(snd_pt),n*nesd,&

5
base/comm/internals/psi_movrl_restr_a.f90
Unescape Escape View File

@ -29,6 +29,11 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_movrl_restr
! These subroutines restore the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
!
subroutine psi_movrl_restrr1(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_movrl_restrr1

6
base/comm/internals/psi_movrl_save_a.f90
Unescape Escape View File

@ -29,7 +29,11 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
!
! Subroutine: psi_movrl_save
! These subroutines save the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
subroutine psi_movrl_saver1(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_movrl_saver1

6
base/comm/internals/psi_movrl_upd_a.f90
Unescape Escape View File

@ -29,6 +29,12 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_movrl_update
! These subroutines update the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap,
! or for the application of Additive Schwarz preconditioners.
!
!
subroutine psi_movrl_updr1(x,desc_a,update,info)
use psi_mod, psi_protect_name => psi_movrl_updr1

28
base/comm/internals/psi_mswapdata_a.F90
Unescape Escape View File

@ -33,9 +33,9 @@
! File: psi_mswapdata.F90
!
! Subroutine: psi_mswapdatam
! Does the data exchange among processes. Essentially this is doing
! Implements the data exchange among processes. Essentially this is doing
! a variable all-to-all data exchange (ALLTOALLV in MPI parlance), but
! it is capable of pruning empty exchanges, which are very likely in out
! it is capable of pruning empty exchanges, which are very likely in our
! application environment. All the variants have the same structure
! In all these subroutines X may be: I Integer
! S real(psb_spk_)
@ -49,6 +49,7 @@
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -69,10 +70,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! beta - integer Choose overwrite or sum.
! y(:,:) - integer The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - integer Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -236,7 +237,7 @@ subroutine psi_mswapidxm(iictxt,iicomm,flag,n,beta,y,idx, &
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = n*nerv
@ -349,7 +350,7 @@ subroutine psi_mswapidxm(iictxt,iicomm,flag,n,beta,y,idx, &
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
p2ptag = psb_int4_swap_tag
call mpi_irecv(rcvbuf(rcv_pt),n*nerv,&
@ -507,7 +508,7 @@ end subroutine psi_mswapidxm
!
!
! Subroutine: psi_mswapdatav
! Does the data exchange among processes. Essentially this is doing
! Implements the data exchange among processes. Essentially this is doing
! a variable all-to-all data exchange (ALLTOALLV in MPI parlance), but
! it is capable of pruning empty exchanges, which are very likely in out
! application environment. All the variants have the same structure
@ -523,6 +524,7 @@ end subroutine psi_mswapidxm
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -543,10 +545,10 @@ end subroutine psi_mswapidxm
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:) - X The data area
! beta - integer Choose overwrite or sum.
! y(:) - integer The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - integer Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -721,7 +723,7 @@ subroutine psi_mswapidxv(iictxt,iicomm,flag,beta,y,idx, &
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = nerv
@ -835,7 +837,7 @@ subroutine psi_mswapidxv(iictxt,iicomm,flag,beta,y,idx, &
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
p2ptag = psb_int4_swap_tag
call mpi_irecv(rcvbuf(rcv_pt),nerv,&

26
base/comm/internals/psi_mswaptran_a.F90
Unescape Escape View File

@ -33,7 +33,7 @@
! File: psi_mswaptran.F90
!
! Subroutine: psi_mswaptranm
! Does the data exchange among processes. This is similar to Xswapdata, but
! Implements the data exchange among processes. This is similar to Xswapdata, but
! the list is read "in reverse", i.e. indices that are normally SENT are used
! for the RECEIVE part and vice-versa. This is the basic data exchange operation
! for doing the product of a sparse matrix by a vector.
@ -53,6 +53,7 @@
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -73,10 +74,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! beta - integer Choose overwrite or sum.
! y(:,:) - integer The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - integer Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -241,7 +242,7 @@ subroutine psi_mtranidxm(iictxt,iicomm,flag,n,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = n*nerv
@ -359,7 +360,7 @@ subroutine psi_mtranidxm(iictxt,iicomm,flag,n,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
p2ptag = psb_int4_swap_tag
call mpi_irecv(sndbuf(snd_pt),n*nesd,&
@ -516,7 +517,7 @@ end subroutine psi_mtranidxm
!
!
! Subroutine: psi_mswaptranv
! Does the data exchange among processes. This is similar to Xswapdata, but
! Implements the data exchange among processes. This is similar to Xswapdata, but
! the list is read "in reverse", i.e. indices that are normally SENT are used
! for the RECEIVE part and vice-versa. This is the basic data exchange operation
! for doing the product of a sparse matrix by a vector.
@ -536,6 +537,7 @@ end subroutine psi_mtranidxm
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -556,10 +558,10 @@ end subroutine psi_mtranidxm
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:) - X The data area
! beta - integer Choose overwrite or sum.
! y(:) - integer The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - integer Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -734,7 +736,7 @@ subroutine psi_mtranidxv(iictxt,iicomm,flag,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = nerv
@ -852,7 +854,7 @@ subroutine psi_mtranidxv(iictxt,iicomm,flag,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
p2ptag = psb_int4_swap_tag
call mpi_irecv(sndbuf(snd_pt),nesd,&

7
base/comm/internals/psi_sovrl_restr.f90
Unescape Escape View File

@ -29,7 +29,12 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_sovrl_restr
! These subroutines restore the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
!
!
subroutine psi_sovrl_restr_vect(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_sovrl_restr_vect
use psb_s_base_vect_mod

5
base/comm/internals/psi_sovrl_restr_a.f90
Unescape Escape View File

@ -29,6 +29,11 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_sovrl_restr
! These subroutines restore the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
!
subroutine psi_sovrl_restrr1(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_sovrl_restrr1

5
base/comm/internals/psi_sovrl_save.f90
Unescape Escape View File

@ -29,6 +29,11 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_sovrl_save
! These subroutines save the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
!
subroutine psi_sovrl_save_vect(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_sovrl_save_vect
use psb_realloc_mod

6
base/comm/internals/psi_sovrl_save_a.f90
Unescape Escape View File

@ -29,7 +29,11 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
!
! Subroutine: psi_sovrl_save
! These subroutines save the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
subroutine psi_sovrl_saver1(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_sovrl_saver1

8
base/comm/internals/psi_sovrl_upd.f90
Unescape Escape View File

@ -29,7 +29,13 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_sovrl_update
! These subroutines update the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap,
! or for the application of Additive Schwarz preconditioners.
!
!
!
subroutine psi_sovrl_upd_vect(x,desc_a,update,info)
use psi_mod, psi_protect_name => psi_sovrl_upd_vect
use psb_realloc_mod

6
base/comm/internals/psi_sovrl_upd_a.f90
Unescape Escape View File

@ -29,6 +29,12 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_sovrl_update
! These subroutines update the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap,
! or for the application of Additive Schwarz preconditioners.
!
!
subroutine psi_sovrl_updr1(x,desc_a,update,info)
use psi_mod, psi_protect_name => psi_sovrl_updr1

35
base/comm/internals/psi_sswapdata.F90
Unescape Escape View File

@ -32,8 +32,10 @@
!
! File: psi_sswapdata.F90
!
! Subroutine: psi_sswapdatam
! Does the data exchange among processes. Essentially this is doing
!
!
! Subroutine: psi_sswapdata_vect
! Implements the data exchange among processes. Essentially this is doing
! a variable all-to-all data exchange (ALLTOALLV in MPI parlance), but
! it is capable of pruning empty exchanges, which are very likely in out
! application environment. All the variants have the same structure
@ -43,12 +45,15 @@
! C complex(psb_spk_)
! Z complex(psb_dpk_)
! Basically the operation is as follows: on each process, we identify
! sections SND(Y) and RCV(Y); then we do a send on (PACK(SND(Y)));
! then we receive, and we do an update with Y = UNPACK(RCV(Y)) + BETA * Y
! but only on the elements involved in the UNPACK operation.
! sections SND(Y) and RCV(Y); then we do a SEND(PACK(GTH(SND(Y))));
! then we receive, and we do an update with Y = SCT(RCV(Y)) + BETA * Y
! but only on the elements involved in the SCT operation.
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
! This version works on encapsulated vectors, and uses their methods to do GTH and SCT,
! so that special versions (i.e. GPU vectors can override them
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -69,10 +74,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! beta - real Choose overwrite or sum.
! y - type(psb_@x@_vect_type) The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - real Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -84,14 +89,6 @@
!
!
!
!
! Subroutine: psi_sswapdata_vect
! Data exchange among processes.
!
! Takes care of Y an exanspulated vector.
!
!
!
subroutine psi_sswapdata_vect(flag,beta,y,desc_a,work,info,data)
use psi_mod, psb_protect_name => psi_sswapdata_vect
@ -263,7 +260,7 @@ subroutine psi_sswap_vidx_vect(iictxt,iicomm,flag,beta,y,idx, &
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
rcv_pt = 1+pnti+psb_n_elem_recv_
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),rcv_pt
p2ptag = psb_real_swap_tag
@ -426,7 +423,7 @@ end subroutine psi_sswap_vidx_vect
! Subroutine: psi_sswapdata_multivect
! Data exchange among processes.
!
! Takes care of Y an encaspulated vector.
! Takes care of Y an encaspulated multivector.
!
!
subroutine psi_sswapdata_multivect(flag,beta,y,desc_a,work,info,data)
@ -602,7 +599,7 @@ subroutine psi_sswap_vidx_multivect(iictxt,iicomm,flag,beta,y,idx, &
proc_to_comm = idx%v(pnti+psb_proc_id_)
nerv = idx%v(pnti+psb_n_elem_recv_)
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),rcv_pt
p2ptag = psb_real_swap_tag

28
base/comm/internals/psi_sswapdata_a.F90
Unescape Escape View File

@ -33,9 +33,9 @@
! File: psi_sswapdata.F90
!
! Subroutine: psi_sswapdatam
! Does the data exchange among processes. Essentially this is doing
! Implements the data exchange among processes. Essentially this is doing
! a variable all-to-all data exchange (ALLTOALLV in MPI parlance), but
! it is capable of pruning empty exchanges, which are very likely in out
! it is capable of pruning empty exchanges, which are very likely in our
! application environment. All the variants have the same structure
! In all these subroutines X may be: I Integer
! S real(psb_spk_)
@ -49,6 +49,7 @@
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -69,10 +70,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! beta - real Choose overwrite or sum.
! y(:,:) - real The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - real Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -236,7 +237,7 @@ subroutine psi_sswapidxm(iictxt,iicomm,flag,n,beta,y,idx, &
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = n*nerv
@ -349,7 +350,7 @@ subroutine psi_sswapidxm(iictxt,iicomm,flag,n,beta,y,idx, &
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
p2ptag = psb_real_swap_tag
call mpi_irecv(rcvbuf(rcv_pt),n*nerv,&
@ -507,7 +508,7 @@ end subroutine psi_sswapidxm
!
!
! Subroutine: psi_sswapdatav
! Does the data exchange among processes. Essentially this is doing
! Implements the data exchange among processes. Essentially this is doing
! a variable all-to-all data exchange (ALLTOALLV in MPI parlance), but
! it is capable of pruning empty exchanges, which are very likely in out
! application environment. All the variants have the same structure
@ -523,6 +524,7 @@ end subroutine psi_sswapidxm
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -543,10 +545,10 @@ end subroutine psi_sswapidxm
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:) - X The data area
! beta - real Choose overwrite or sum.
! y(:) - real The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - real Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -721,7 +723,7 @@ subroutine psi_sswapidxv(iictxt,iicomm,flag,beta,y,idx, &
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = nerv
@ -835,7 +837,7 @@ subroutine psi_sswapidxv(iictxt,iicomm,flag,beta,y,idx, &
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
p2ptag = psb_real_swap_tag
call mpi_irecv(rcvbuf(rcv_pt),nerv,&

39
base/comm/internals/psi_sswaptran.F90
Unescape Escape View File

@ -32,8 +32,8 @@
!
! File: psi_sswaptran.F90
!
! Subroutine: psi_sswaptranm
! Does the data exchange among processes. This is similar to Xswapdata, but
! Subroutine: psi_sswaptran_vect
! Implements the data exchange among processes. This is similar to Xswapdata, but
! the list is read "in reverse", i.e. indices that are normally SENT are used
! for the RECEIVE part and vice-versa. This is the basic data exchange operation
! for doing the product of a sparse matrix by a vector.
@ -47,12 +47,16 @@
! C complex(psb_spk_)
! Z complex(psb_dpk_)
! Basically the operation is as follows: on each process, we identify
! sections SND(Y) and RCV(Y); then we do a SEND(PACK(SND(Y)));
! then we receive, and we do an update with Y = UNPACK(RCV(Y)) + BETA * Y
! but only on the elements involved in the UNPACK operation.
! sections SND(Y) and RCV(Y); then we do a SEND(PACK(GTH(SND(Y))));
! then we receive, and we do an update with Y = SCT(RCV(Y)) + BETA * Y
! but only on the elements involved in the SCT operation.
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
! This version works on encapsulated vectors, and uses their methods to do GTH and SCT,
! so that special versions (i.e. GPU vectors can override them
!
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -73,10 +77,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! beta - real Choose overwrite or sum.
! y - type(psb_s_vect_type) The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - real Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -87,13 +91,6 @@
! psb_comm_mov_ use ovr_mst_idx
!
!
!
! Subroutine: psi_sswaptran_vect
! Data exchange among processes.
!
! Takes care of Y an exanspulated vector.
!
!
subroutine psi_sswaptran_vect(flag,beta,y,desc_a,work,info,data)
use psi_mod, psb_protect_name => psi_sswaptran_vect
@ -171,7 +168,7 @@ end subroutine psi_sswaptran_vect
! Subroutine: psi_stran_vidx_vect
! Data exchange among processes.
!
! Takes care of Y an exanspulated vector. Relies on the gather/scatter methods
! Takes care of Y an encapsulated vector. Relies on the gather/scatter methods
! of vectors.
!
! The real workhorse: the outer routine will only choose the index list
@ -269,7 +266,7 @@ subroutine psi_stran_vidx_vect(iictxt,iicomm,flag,beta,y,idx,&
snd_pt = 1+pnti+nerv+psb_n_elem_send_
rcv_pt = 1+pnti+psb_n_elem_recv_
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),rcv_pt
call mpi_irecv(y%combuf(snd_pt),nesd,&
@ -436,10 +433,10 @@ end subroutine psi_stran_vidx_vect
!
!
!
! Subroutine: psi_sswaptran_vect
! Subroutine: psi_sswaptran_multivect
! Data exchange among processes.
!
! Takes care of Y an encaspulated vector.
! Takes care of Y an encaspulated multivector.
!
!
subroutine psi_sswaptran_multivect(flag,beta,y,desc_a,work,info,data)
@ -616,7 +613,7 @@ subroutine psi_stran_vidx_multivect(iictxt,iicomm,flag,beta,y,idx,&
proc_to_comm = idx%v(pnti+psb_proc_id_)
nerv = idx%v(pnti+psb_n_elem_recv_)
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),snd_pt
call mpi_irecv(y%combuf(snd_pt),n*nesd,&

26
base/comm/internals/psi_sswaptran_a.F90
Unescape Escape View File

@ -33,7 +33,7 @@
! File: psi_sswaptran.F90
!
! Subroutine: psi_sswaptranm
! Does the data exchange among processes. This is similar to Xswapdata, but
! Implements the data exchange among processes. This is similar to Xswapdata, but
! the list is read "in reverse", i.e. indices that are normally SENT are used
! for the RECEIVE part and vice-versa. This is the basic data exchange operation
! for doing the product of a sparse matrix by a vector.
@ -53,6 +53,7 @@
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -73,10 +74,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! beta - real Choose overwrite or sum.
! y(:,:) - real The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - real Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -241,7 +242,7 @@ subroutine psi_stranidxm(iictxt,iicomm,flag,n,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = n*nerv
@ -359,7 +360,7 @@ subroutine psi_stranidxm(iictxt,iicomm,flag,n,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
p2ptag = psb_real_swap_tag
call mpi_irecv(sndbuf(snd_pt),n*nesd,&
@ -516,7 +517,7 @@ end subroutine psi_stranidxm
!
!
! Subroutine: psi_sswaptranv
! Does the data exchange among processes. This is similar to Xswapdata, but
! Implements the data exchange among processes. This is similar to Xswapdata, but
! the list is read "in reverse", i.e. indices that are normally SENT are used
! for the RECEIVE part and vice-versa. This is the basic data exchange operation
! for doing the product of a sparse matrix by a vector.
@ -536,6 +537,7 @@ end subroutine psi_stranidxm
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -556,10 +558,10 @@ end subroutine psi_stranidxm
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:) - X The data area
! beta - real Choose overwrite or sum.
! y(:) - real The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - real Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -734,7 +736,7 @@ subroutine psi_stranidxv(iictxt,iicomm,flag,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = nerv
@ -852,7 +854,7 @@ subroutine psi_stranidxv(iictxt,iicomm,flag,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
p2ptag = psb_real_swap_tag
call mpi_irecv(sndbuf(snd_pt),nesd,&

7
base/comm/internals/psi_zovrl_restr.f90
Unescape Escape View File

@ -29,7 +29,12 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_zovrl_restr
! These subroutines restore the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
!
!
subroutine psi_zovrl_restr_vect(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_zovrl_restr_vect
use psb_z_base_vect_mod

5
base/comm/internals/psi_zovrl_restr_a.f90
Unescape Escape View File

@ -29,6 +29,11 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_zovrl_restr
! These subroutines restore the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
!
subroutine psi_zovrl_restrr1(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_zovrl_restrr1

5
base/comm/internals/psi_zovrl_save.f90
Unescape Escape View File

@ -29,6 +29,11 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_zovrl_save
! These subroutines save the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
!
subroutine psi_zovrl_save_vect(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_zovrl_save_vect
use psb_realloc_mod

6
base/comm/internals/psi_zovrl_save_a.f90
Unescape Escape View File

@ -29,7 +29,11 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
!
! Subroutine: psi_zovrl_save
! These subroutines save the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap.
!
subroutine psi_zovrl_saver1(x,xs,desc_a,info)
use psi_mod, psi_protect_name => psi_zovrl_saver1

8
base/comm/internals/psi_zovrl_upd.f90
Unescape Escape View File

@ -29,7 +29,13 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_zovrl_update
! These subroutines update the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap,
! or for the application of Additive Schwarz preconditioners.
!
!
!
subroutine psi_zovrl_upd_vect(x,desc_a,update,info)
use psi_mod, psi_protect_name => psi_zovrl_upd_vect
use psb_realloc_mod

6
base/comm/internals/psi_zovrl_upd_a.f90
Unescape Escape View File

@ -29,6 +29,12 @@
! POSSIBILITY OF SUCH DAMAGE.
!
!
! Subroutine: psi_zovrl_update
! These subroutines update the overlap region of a vector; they are used
! for the transpose matrix-vector product when there is a nonempty overlap,
! or for the application of Additive Schwarz preconditioners.
!
!
subroutine psi_zovrl_updr1(x,desc_a,update,info)
use psi_mod, psi_protect_name => psi_zovrl_updr1

35
base/comm/internals/psi_zswapdata.F90
Unescape Escape View File

@ -32,8 +32,10 @@
!
! File: psi_zswapdata.F90
!
! Subroutine: psi_zswapdatam
! Does the data exchange among processes. Essentially this is doing
!
!
! Subroutine: psi_zswapdata_vect
! Implements the data exchange among processes. Essentially this is doing
! a variable all-to-all data exchange (ALLTOALLV in MPI parlance), but
! it is capable of pruning empty exchanges, which are very likely in out
! application environment. All the variants have the same structure
@ -43,12 +45,15 @@
! C complex(psb_spk_)
! Z complex(psb_dpk_)
! Basically the operation is as follows: on each process, we identify
! sections SND(Y) and RCV(Y); then we do a send on (PACK(SND(Y)));
! then we receive, and we do an update with Y = UNPACK(RCV(Y)) + BETA * Y
! but only on the elements involved in the UNPACK operation.
! sections SND(Y) and RCV(Y); then we do a SEND(PACK(GTH(SND(Y))));
! then we receive, and we do an update with Y = SCT(RCV(Y)) + BETA * Y
! but only on the elements involved in the SCT operation.
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
! This version works on encapsulated vectors, and uses their methods to do GTH and SCT,
! so that special versions (i.e. GPU vectors can override them
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -69,10 +74,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! beta - complex Choose overwrite or sum.
! y - type(psb_@x@_vect_type) The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - complex Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -84,14 +89,6 @@
!
!
!
!
! Subroutine: psi_zswapdata_vect
! Data exchange among processes.
!
! Takes care of Y an exanspulated vector.
!
!
!
subroutine psi_zswapdata_vect(flag,beta,y,desc_a,work,info,data)
use psi_mod, psb_protect_name => psi_zswapdata_vect
@ -263,7 +260,7 @@ subroutine psi_zswap_vidx_vect(iictxt,iicomm,flag,beta,y,idx, &
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
rcv_pt = 1+pnti+psb_n_elem_recv_
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),rcv_pt
p2ptag = psb_dcomplex_swap_tag
@ -426,7 +423,7 @@ end subroutine psi_zswap_vidx_vect
! Subroutine: psi_zswapdata_multivect
! Data exchange among processes.
!
! Takes care of Y an encaspulated vector.
! Takes care of Y an encaspulated multivector.
!
!
subroutine psi_zswapdata_multivect(flag,beta,y,desc_a,work,info,data)
@ -602,7 +599,7 @@ subroutine psi_zswap_vidx_multivect(iictxt,iicomm,flag,beta,y,idx, &
proc_to_comm = idx%v(pnti+psb_proc_id_)
nerv = idx%v(pnti+psb_n_elem_recv_)
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),rcv_pt
p2ptag = psb_dcomplex_swap_tag

28
base/comm/internals/psi_zswapdata_a.F90
Unescape Escape View File

@ -33,9 +33,9 @@
! File: psi_zswapdata.F90
!
! Subroutine: psi_zswapdatam
! Does the data exchange among processes. Essentially this is doing
! Implements the data exchange among processes. Essentially this is doing
! a variable all-to-all data exchange (ALLTOALLV in MPI parlance), but
! it is capable of pruning empty exchanges, which are very likely in out
! it is capable of pruning empty exchanges, which are very likely in our
! application environment. All the variants have the same structure
! In all these subroutines X may be: I Integer
! S real(psb_spk_)
@ -49,6 +49,7 @@
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -69,10 +70,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! beta - complex Choose overwrite or sum.
! y(:,:) - complex The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - complex Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -236,7 +237,7 @@ subroutine psi_zswapidxm(iictxt,iicomm,flag,n,beta,y,idx, &
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = n*nerv
@ -349,7 +350,7 @@ subroutine psi_zswapidxm(iictxt,iicomm,flag,n,beta,y,idx, &
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
p2ptag = psb_dcomplex_swap_tag
call mpi_irecv(rcvbuf(rcv_pt),n*nerv,&
@ -507,7 +508,7 @@ end subroutine psi_zswapidxm
!
!
! Subroutine: psi_zswapdatav
! Does the data exchange among processes. Essentially this is doing
! Implements the data exchange among processes. Essentially this is doing
! a variable all-to-all data exchange (ALLTOALLV in MPI parlance), but
! it is capable of pruning empty exchanges, which are very likely in out
! application environment. All the variants have the same structure
@ -523,6 +524,7 @@ end subroutine psi_zswapidxm
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -543,10 +545,10 @@ end subroutine psi_zswapidxm
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:) - X The data area
! beta - complex Choose overwrite or sum.
! y(:) - complex The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - complex Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -721,7 +723,7 @@ subroutine psi_zswapidxv(iictxt,iicomm,flag,beta,y,idx, &
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = nerv
@ -835,7 +837,7 @@ subroutine psi_zswapidxv(iictxt,iicomm,flag,beta,y,idx, &
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nerv>0).and.(proc_to_comm /= me)) then
p2ptag = psb_dcomplex_swap_tag
call mpi_irecv(rcvbuf(rcv_pt),nerv,&

39
base/comm/internals/psi_zswaptran.F90
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@ -32,8 +32,8 @@
!
! File: psi_zswaptran.F90
!
! Subroutine: psi_zswaptranm
! Does the data exchange among processes. This is similar to Xswapdata, but
! Subroutine: psi_zswaptran_vect
! Implements the data exchange among processes. This is similar to Xswapdata, but
! the list is read "in reverse", i.e. indices that are normally SENT are used
! for the RECEIVE part and vice-versa. This is the basic data exchange operation
! for doing the product of a sparse matrix by a vector.
@ -47,12 +47,16 @@
! C complex(psb_spk_)
! Z complex(psb_dpk_)
! Basically the operation is as follows: on each process, we identify
! sections SND(Y) and RCV(Y); then we do a SEND(PACK(SND(Y)));
! then we receive, and we do an update with Y = UNPACK(RCV(Y)) + BETA * Y
! but only on the elements involved in the UNPACK operation.
! sections SND(Y) and RCV(Y); then we do a SEND(PACK(GTH(SND(Y))));
! then we receive, and we do an update with Y = SCT(RCV(Y)) + BETA * Y
! but only on the elements involved in the SCT operation.
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
! This version works on encapsulated vectors, and uses their methods to do GTH and SCT,
! so that special versions (i.e. GPU vectors can override them
!
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -73,10 +77,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! beta - complex Choose overwrite or sum.
! y - type(psb_z_vect_type) The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - complex Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -87,13 +91,6 @@
! psb_comm_mov_ use ovr_mst_idx
!
!
!
! Subroutine: psi_zswaptran_vect
! Data exchange among processes.
!
! Takes care of Y an exanspulated vector.
!
!
subroutine psi_zswaptran_vect(flag,beta,y,desc_a,work,info,data)
use psi_mod, psb_protect_name => psi_zswaptran_vect
@ -171,7 +168,7 @@ end subroutine psi_zswaptran_vect
! Subroutine: psi_ztran_vidx_vect
! Data exchange among processes.
!
! Takes care of Y an exanspulated vector. Relies on the gather/scatter methods
! Takes care of Y an encapsulated vector. Relies on the gather/scatter methods
! of vectors.
!
! The real workhorse: the outer routine will only choose the index list
@ -269,7 +266,7 @@ subroutine psi_ztran_vidx_vect(iictxt,iicomm,flag,beta,y,idx,&
snd_pt = 1+pnti+nerv+psb_n_elem_send_
rcv_pt = 1+pnti+psb_n_elem_recv_
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),rcv_pt
call mpi_irecv(y%combuf(snd_pt),nesd,&
@ -436,10 +433,10 @@ end subroutine psi_ztran_vidx_vect
!
!
!
! Subroutine: psi_zswaptran_vect
! Subroutine: psi_zswaptran_multivect
! Data exchange among processes.
!
! Takes care of Y an encaspulated vector.
! Takes care of Y an encaspulated multivector.
!
!
subroutine psi_zswaptran_multivect(flag,beta,y,desc_a,work,info,data)
@ -616,7 +613,7 @@ subroutine psi_ztran_vidx_multivect(iictxt,iicomm,flag,beta,y,idx,&
proc_to_comm = idx%v(pnti+psb_proc_id_)
nerv = idx%v(pnti+psb_n_elem_recv_)
nesd = idx%v(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
if (debug) write(*,*) me,'Posting receive from',prcid(i),snd_pt
call mpi_irecv(y%combuf(snd_pt),n*nesd,&

26
base/comm/internals/psi_zswaptran_a.F90
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@ -33,7 +33,7 @@
! File: psi_zswaptran.F90
!
! Subroutine: psi_zswaptranm
! Does the data exchange among processes. This is similar to Xswapdata, but
! Implements the data exchange among processes. This is similar to Xswapdata, but
! the list is read "in reverse", i.e. indices that are normally SENT are used
! for the RECEIVE part and vice-versa. This is the basic data exchange operation
! for doing the product of a sparse matrix by a vector.
@ -53,6 +53,7 @@
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -73,10 +74,10 @@
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:,:) - X The data area
! beta - complex Choose overwrite or sum.
! y(:,:) - complex The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - complex Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -241,7 +242,7 @@ subroutine psi_ztranidxm(iictxt,iicomm,flag,n,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = n*nerv
@ -359,7 +360,7 @@ subroutine psi_ztranidxm(iictxt,iicomm,flag,n,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
p2ptag = psb_dcomplex_swap_tag
call mpi_irecv(sndbuf(snd_pt),n*nesd,&
@ -516,7 +517,7 @@ end subroutine psi_ztranidxm
!
!
! Subroutine: psi_zswaptranv
! Does the data exchange among processes. This is similar to Xswapdata, but
! Implements the data exchange among processes. This is similar to Xswapdata, but
! the list is read "in reverse", i.e. indices that are normally SENT are used
! for the RECEIVE part and vice-versa. This is the basic data exchange operation
! for doing the product of a sparse matrix by a vector.
@ -536,6 +537,7 @@ end subroutine psi_ztranidxm
! Thus: for halo data exchange, the receive section is confined in the
! halo indices, and BETA=0, whereas for overlap exchange the receive section
! is scattered in the owned indices, and BETA=1.
! The first routine picks the desired exchange index list and passes it to the second.
!
! Arguments:
! flag - integer Choose the algorithm for data exchange:
@ -556,10 +558,10 @@ end subroutine psi_ztranidxm
!
!
! n - integer Number of columns in Y
! beta - X Choose overwrite or sum.
! y(:) - X The data area
! beta - complex Choose overwrite or sum.
! y(:) - complex The data area
! desc_a - type(psb_desc_type). The communication descriptor.
! work(:) - X Buffer space. If not sufficient, will do
! work(:) - complex Buffer space. If not sufficient, will do
! our own internal allocation.
! info - integer. return code.
! data - integer which list is to be used to exchange data
@ -734,7 +736,7 @@ subroutine psi_ztranidxv(iictxt,iicomm,flag,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
prcid(proc_to_comm) = psb_get_mpi_rank(ictxt,proc_to_comm)
brvidx(proc_to_comm) = rcv_pt
rvsz(proc_to_comm) = nerv
@ -852,7 +854,7 @@ subroutine psi_ztranidxv(iictxt,iicomm,flag,beta,y,idx,&
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
call psb_get_rank(prcid(i),ictxt,proc_to_comm)
prcid(i) = psb_get_mpi_rank(ictxt,proc_to_comm)
if ((nesd>0).and.(proc_to_comm /= me)) then
p2ptag = psb_dcomplex_swap_tag
call mpi_irecv(sndbuf(snd_pt),nesd,&

12
base/comm/psb_cgather.f90
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@ -31,14 +31,14 @@
!
! File: psb_cgather.f90
!
! Subroutine: psb_cgatherm
! This subroutine gathers pieces of a distributed dense matrix into a local one.
! Subroutine: psb_cgather_vect
! This subroutine gathers pieces of a distributed vector into a local one.
!
! Arguments:
! globx - complex,dimension(:,:). The local matrix into which gather
! globx - complex,dimension(:). The local matrix into which gather
! the distributed pieces.
! locx - complex,dimension(:,:). The local piece of the distributed
! matrix to be gathered.
! locx - type(psb_c_vect_type@ The local piece of the distributed
! vector to be gathered.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Error code.
! iroot - integer. The process that has to own the
@ -159,6 +159,8 @@ subroutine psb_cgather_vect(globx, locx, desc_a, info, iroot)
end subroutine psb_cgather_vect
! Subroutine: psb_cgather_multivect
! This subroutine gathers pieces of a distributed multivector into a local one.
subroutine psb_cgather_multivect(globx, locx, desc_a, info, iroot)
use psb_base_mod, psb_protect_name => psb_cgather_multivect

2
base/comm/psb_cgather_a.f90
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@ -31,7 +31,7 @@
!
! File: psb_cgather.f90
!
! Subroutine: psb_cgatherm
! Subroutine: psb_cgather
! This subroutine gathers pieces of a distributed dense matrix into a local one.
!
! Arguments:

32
base/comm/psb_chalo.f90
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@ -31,17 +31,17 @@
!
! File: psb_chalo.f90
!
! Subroutine: psb_chalom
! Subroutine: psb_chalo_vect
! This subroutine performs the exchange of the halo elements in a
! distributed dense matrix between all the processes.
! distributed vector between all the processes.
!
! Arguments:
! x - complex,dimension(:,:). The local part of the dense matrix.
! x - type(psb_c_vect_type) The local part of the vector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
! jx - integer(optional). The starting column of the global matrix.
! ik - integer(optional). The number of columns to gather.
! work - complex(optional). Work area.
! work - complex(optional). Work area.
! tran - character(optional). Transpose exchange.
! mode - integer(optional). Communication mode (see Swapdata)
! data - integer Which index list in desc_a should be used
@ -52,7 +52,6 @@
! psb_comm_mov_ use ovr_mst_idx
!
!
subroutine psb_chalo_vect(x,desc_a,info,work,tran,mode,data)
use psb_base_mod, psb_protect_name => psb_chalo_vect
use psi_mod
@ -185,7 +184,28 @@ subroutine psb_chalo_vect(x,desc_a,info,work,tran,mode,data)
return
end subroutine psb_chalo_vect
!
! Subroutine: psb_chalo_multivect
! This subroutine performs the exchange of the halo elements in a
! distributed multivector between all the processes.
!
! Arguments:
! x - type(psb_c_multivect_type) The local part of the multivector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
! jx - integer(optional). The starting column of the global matrix.
! ik - integer(optional). The number of columns to gather.
! work - complex(optional). Work area.
! tran - character(optional). Transpose exchange.
! mode - integer(optional). Communication mode (see Swapdata)
! data - integer Which index list in desc_a should be used
! to retrieve rows, default psb_comm_halo_
! psb_comm_halo_ use halo_index
! psb_comm_ext_ use ext_index
! psb_comm_ovrl_ use ovrl_index
! psb_comm_mov_ use ovr_mst_idx
!
!
subroutine psb_chalo_multivect(x,desc_a,info,work,tran,mode,data)
use psb_base_mod, psb_protect_name => psb_chalo_multivect
use psi_mod

39
base/comm/psb_covrl.f90
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@ -32,12 +32,12 @@
!
! File: psb_covrl.f90
!
! Subroutine: psb_covrlm
! Subroutine: psb_covrl_vect
! This subroutine performs the exchange of the overlap elements in a
! distributed dense matrix between all the processes.
! distributed dense vector between all the processes.
!
! Arguments:
! x(:,:) - complex The local part of the dense matrix.
! x - type(psb_c_vect_type) The local part of the vector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code.
! jx - integer(optional). The starting column of the global matrix
@ -180,7 +180,38 @@ subroutine psb_covrl_vect(x,desc_a,info,work,update,mode)
return
end subroutine psb_covrl_vect
!
! Subroutine: psb_covrl_multivect
! This subroutine performs the exchange of the overlap elements in a
! distributed multivector between all the processes.
!
! Arguments:
! x - type(psb_c_vect_type) The local part of the multivector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code.
! jx - integer(optional). The starting column of the global matrix
! ik - integer(optional). The number of columns to gather.
! work - complex(optional). A work area.
! update - integer(optional). Type of update:
! psb_none_ do nothing
! psb_sum_ sum of overlaps
! psb_avg_ average of overlaps
! mode - integer(optional). Choose the algorithm for data exchange:
! this is chosen through bit fields.
! - swap_mpi = iand(flag,psb_swap_mpi_) /= 0
! - swap_sync = iand(flag,psb_swap_sync_) /= 0
! - swap_send = iand(flag,psb_swap_send_) /= 0
! - swap_recv = iand(flag,psb_swap_recv_) /= 0
! - if (swap_mpi): use underlying MPI_ALLTOALLV.
! - if (swap_sync): use PSB_SND and PSB_RCV in
! synchronized pairs
! - if (swap_send .and. swap_recv): use mpi_irecv
! and mpi_send
! - if (swap_send): use psb_snd (but need another
! call with swap_recv to complete)
! - if (swap_recv): use psb_rcv (completing a
! previous call with swap_send)
!
subroutine psb_covrl_multivect(x,desc_a,info,work,update,mode)
use psb_base_mod, psb_protect_name => psb_covrl_multivect
use psi_mod

10
base/comm/psb_cscatter.F90
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@ -31,13 +31,13 @@
!
! File: psb_cscatter.f90
!
! Subroutine: psb_cscatterm
! This subroutine scatters a global matrix locally owned by one process
! into pieces that are local to alle the processes.
! Subroutine: psb_cscatter_vect
! This subroutine scatters a global vector locally owned by one process
! into pieces that are local to all the processes.
!
! Arguments:
! globx - complex,dimension(:,:). The global matrix to scatter.
! locx - complex,dimension(:,:). The local piece of the distributed matrix.
! globx - complex,dimension(:) The global matrix to scatter.
! locx - type(psb_c_vect_type) The local piece of the distributed matrix.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Error code.
! iroot - integer(optional). The process that owns the global matrix.

16
base/comm/psb_cscatter_a.F90
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@ -33,7 +33,7 @@
!
! Subroutine: psb_cscatterm
! This subroutine scatters a global matrix locally owned by one process
! into pieces that are local to alle the processes.
! into pieces that are local to all the processes.
!
! Arguments:
! globx - complex,dimension(:,:). The global matrix to scatter.
@ -107,8 +107,8 @@ subroutine psb_cscatterm(globx, locx, desc_a, info, root)
m = desc_a%get_global_rows()
n = desc_a%get_global_cols()
call psb_get_mpicomm(ictxt,icomm)
call psb_get_rank(myrank,ictxt,me)
icomm = psb_get_mpi_comm(ictxt)
myrank = psb_get_mpi_rank(ictxt,me)
if (iroot==-1) then
lda_globx = size(globx, 1)
@ -159,7 +159,7 @@ subroutine psb_cscatterm(globx, locx, desc_a, info, root)
end do
else
call psb_get_rank(rootrank,ictxt,iroot)
rootrank = psb_get_mpi_rank(ictxt,iroot)
!
! This is potentially unsafe when IPK=8
! But then, IPK=8 is highly experimental anyway.
@ -278,7 +278,7 @@ end subroutine psb_cscatterm
! Subroutine: psb_cscatterv
! This subroutine scatters a global vector locally owned by one process
! into pieces that are local to alle the processes.
! into pieces that are local to all the processes.
!
! Arguments:
! globx - complex,dimension(:). The global vector to scatter.
@ -347,8 +347,8 @@ subroutine psb_cscatterv(globx, locx, desc_a, info, root)
iroot = psb_root_
end if
call psb_get_mpicomm(ictxt,icomm)
call psb_get_rank(myrank,ictxt,iam)
icomm = psb_get_mpi_comm(ictxt)
myrank = psb_get_mpi_rank(ictxt,iam)
iglobx = 1
jglobx = 1
@ -394,7 +394,7 @@ subroutine psb_cscatterv(globx, locx, desc_a, info, root)
locx(i)=globx(ltg(i))
end do
else
call psb_get_rank(rootrank,ictxt,iroot)
rootrank = psb_get_mpi_rank(ictxt,iroot)
!
! This is potentially unsafe when IPK=8
! But then, IPK=8 is highly experimental anyway.

11
base/comm/psb_cspgather.F90
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@ -30,6 +30,17 @@
!
!
! File: psb_cspgather.f90
!
! Gathers a sparse matrix onto a single process.
! Two variants:
! 1. Gathers to PSB_c_SPARSE_MAT (i.e. to matrix with IPK_ indices)
! 2. Gathers to PSB_lc_SPARSE_MAT (i.e. to matrix with LPK_ indices)
!
! Note: this function uses MPI_ALLGATHERV. At this time, the size of the
! resulting matrix must be within the range of 4 bytes because of the
! restriction on MPI displacements to be 4 bytes.
!
!
subroutine psb_csp_allgather(globa, loca, desc_a, info, root, dupl,keepnum,keeploc)
#if defined(HAVE_ISO_FORTRAN_ENV)
use iso_fortran_env

12
base/comm/psb_dgather.f90
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@ -31,14 +31,14 @@
!
! File: psb_dgather.f90
!
! Subroutine: psb_dgatherm
! This subroutine gathers pieces of a distributed dense matrix into a local one.
! Subroutine: psb_dgather_vect
! This subroutine gathers pieces of a distributed vector into a local one.
!
! Arguments:
! globx - real,dimension(:,:). The local matrix into which gather
! globx - real,dimension(:). The local matrix into which gather
! the distributed pieces.
! locx - real,dimension(:,:). The local piece of the distributed
! matrix to be gathered.
! locx - type(psb_d_vect_type@ The local piece of the distributed
! vector to be gathered.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Error code.
! iroot - integer. The process that has to own the
@ -159,6 +159,8 @@ subroutine psb_dgather_vect(globx, locx, desc_a, info, iroot)
end subroutine psb_dgather_vect
! Subroutine: psb_dgather_multivect
! This subroutine gathers pieces of a distributed multivector into a local one.
subroutine psb_dgather_multivect(globx, locx, desc_a, info, iroot)
use psb_base_mod, psb_protect_name => psb_dgather_multivect

2
base/comm/psb_dgather_a.f90
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@ -31,7 +31,7 @@
!
! File: psb_dgather.f90
!
! Subroutine: psb_dgatherm
! Subroutine: psb_dgather
! This subroutine gathers pieces of a distributed dense matrix into a local one.
!
! Arguments:

32
base/comm/psb_dhalo.f90
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@ -31,17 +31,17 @@
!
! File: psb_dhalo.f90
!
! Subroutine: psb_dhalom
! Subroutine: psb_dhalo_vect
! This subroutine performs the exchange of the halo elements in a
! distributed dense matrix between all the processes.
! distributed vector between all the processes.
!
! Arguments:
! x - real,dimension(:,:). The local part of the dense matrix.
! x - type(psb_d_vect_type) The local part of the vector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
! jx - integer(optional). The starting column of the global matrix.
! ik - integer(optional). The number of columns to gather.
! work - real(optional). Work area.
! work - real(optional). Work area.
! tran - character(optional). Transpose exchange.
! mode - integer(optional). Communication mode (see Swapdata)
! data - integer Which index list in desc_a should be used
@ -52,7 +52,6 @@
! psb_comm_mov_ use ovr_mst_idx
!
!
subroutine psb_dhalo_vect(x,desc_a,info,work,tran,mode,data)
use psb_base_mod, psb_protect_name => psb_dhalo_vect
use psi_mod
@ -185,7 +184,28 @@ subroutine psb_dhalo_vect(x,desc_a,info,work,tran,mode,data)
return
end subroutine psb_dhalo_vect
!
! Subroutine: psb_dhalo_multivect
! This subroutine performs the exchange of the halo elements in a
! distributed multivector between all the processes.
!
! Arguments:
! x - type(psb_d_multivect_type) The local part of the multivector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
! jx - integer(optional). The starting column of the global matrix.
! ik - integer(optional). The number of columns to gather.
! work - real(optional). Work area.
! tran - character(optional). Transpose exchange.
! mode - integer(optional). Communication mode (see Swapdata)
! data - integer Which index list in desc_a should be used
! to retrieve rows, default psb_comm_halo_
! psb_comm_halo_ use halo_index
! psb_comm_ext_ use ext_index
! psb_comm_ovrl_ use ovrl_index
! psb_comm_mov_ use ovr_mst_idx
!
!
subroutine psb_dhalo_multivect(x,desc_a,info,work,tran,mode,data)
use psb_base_mod, psb_protect_name => psb_dhalo_multivect
use psi_mod

39
base/comm/psb_dovrl.f90
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@ -32,12 +32,12 @@
!
! File: psb_dovrl.f90
!
! Subroutine: psb_dovrlm
! Subroutine: psb_dovrl_vect
! This subroutine performs the exchange of the overlap elements in a
! distributed dense matrix between all the processes.
! distributed dense vector between all the processes.
!
! Arguments:
! x(:,:) - real The local part of the dense matrix.
! x - type(psb_d_vect_type) The local part of the vector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code.
! jx - integer(optional). The starting column of the global matrix
@ -180,7 +180,38 @@ subroutine psb_dovrl_vect(x,desc_a,info,work,update,mode)
return
end subroutine psb_dovrl_vect
!
! Subroutine: psb_dovrl_multivect
! This subroutine performs the exchange of the overlap elements in a
! distributed multivector between all the processes.
!
! Arguments:
! x - type(psb_d_vect_type) The local part of the multivector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code.
! jx - integer(optional). The starting column of the global matrix
! ik - integer(optional). The number of columns to gather.
! work - real(optional). A work area.
! update - integer(optional). Type of update:
! psb_none_ do nothing
! psb_sum_ sum of overlaps
! psb_avg_ average of overlaps
! mode - integer(optional). Choose the algorithm for data exchange:
! this is chosen through bit fields.
! - swap_mpi = iand(flag,psb_swap_mpi_) /= 0
! - swap_sync = iand(flag,psb_swap_sync_) /= 0
! - swap_send = iand(flag,psb_swap_send_) /= 0
! - swap_recv = iand(flag,psb_swap_recv_) /= 0
! - if (swap_mpi): use underlying MPI_ALLTOALLV.
! - if (swap_sync): use PSB_SND and PSB_RCV in
! synchronized pairs
! - if (swap_send .and. swap_recv): use mpi_irecv
! and mpi_send
! - if (swap_send): use psb_snd (but need another
! call with swap_recv to complete)
! - if (swap_recv): use psb_rcv (completing a
! previous call with swap_send)
!
subroutine psb_dovrl_multivect(x,desc_a,info,work,update,mode)
use psb_base_mod, psb_protect_name => psb_dovrl_multivect
use psi_mod

10
base/comm/psb_dscatter.F90
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@ -31,13 +31,13 @@
!
! File: psb_dscatter.f90
!
! Subroutine: psb_dscatterm
! This subroutine scatters a global matrix locally owned by one process
! into pieces that are local to alle the processes.
! Subroutine: psb_dscatter_vect
! This subroutine scatters a global vector locally owned by one process
! into pieces that are local to all the processes.
!
! Arguments:
! globx - real,dimension(:,:). The global matrix to scatter.
! locx - real,dimension(:,:). The local piece of the distributed matrix.
! globx - real,dimension(:) The global matrix to scatter.
! locx - type(psb_d_vect_type) The local piece of the distributed matrix.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Error code.
! iroot - integer(optional). The process that owns the global matrix.

16
base/comm/psb_dscatter_a.F90
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@ -33,7 +33,7 @@
!
! Subroutine: psb_dscatterm
! This subroutine scatters a global matrix locally owned by one process
! into pieces that are local to alle the processes.
! into pieces that are local to all the processes.
!
! Arguments:
! globx - real,dimension(:,:). The global matrix to scatter.
@ -107,8 +107,8 @@ subroutine psb_dscatterm(globx, locx, desc_a, info, root)
m = desc_a%get_global_rows()
n = desc_a%get_global_cols()
call psb_get_mpicomm(ictxt,icomm)
call psb_get_rank(myrank,ictxt,me)
icomm = psb_get_mpi_comm(ictxt)
myrank = psb_get_mpi_rank(ictxt,me)
if (iroot==-1) then
lda_globx = size(globx, 1)
@ -159,7 +159,7 @@ subroutine psb_dscatterm(globx, locx, desc_a, info, root)
end do
else
call psb_get_rank(rootrank,ictxt,iroot)
rootrank = psb_get_mpi_rank(ictxt,iroot)
!
! This is potentially unsafe when IPK=8
! But then, IPK=8 is highly experimental anyway.
@ -278,7 +278,7 @@ end subroutine psb_dscatterm
! Subroutine: psb_dscatterv
! This subroutine scatters a global vector locally owned by one process
! into pieces that are local to alle the processes.
! into pieces that are local to all the processes.
!
! Arguments:
! globx - real,dimension(:). The global vector to scatter.
@ -347,8 +347,8 @@ subroutine psb_dscatterv(globx, locx, desc_a, info, root)
iroot = psb_root_
end if
call psb_get_mpicomm(ictxt,icomm)
call psb_get_rank(myrank,ictxt,iam)
icomm = psb_get_mpi_comm(ictxt)
myrank = psb_get_mpi_rank(ictxt,iam)
iglobx = 1
jglobx = 1
@ -394,7 +394,7 @@ subroutine psb_dscatterv(globx, locx, desc_a, info, root)
locx(i)=globx(ltg(i))
end do
else
call psb_get_rank(rootrank,ictxt,iroot)
rootrank = psb_get_mpi_rank(ictxt,iroot)
!
! This is potentially unsafe when IPK=8
! But then, IPK=8 is highly experimental anyway.

11
base/comm/psb_dspgather.F90
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@ -30,6 +30,17 @@
!
!
! File: psb_dspgather.f90
!
! Gathers a sparse matrix onto a single process.
! Two variants:
! 1. Gathers to PSB_d_SPARSE_MAT (i.e. to matrix with IPK_ indices)
! 2. Gathers to PSB_ld_SPARSE_MAT (i.e. to matrix with LPK_ indices)
!
! Note: this function uses MPI_ALLGATHERV. At this time, the size of the
! resulting matrix must be within the range of 4 bytes because of the
! restriction on MPI displacements to be 4 bytes.
!
!
subroutine psb_dsp_allgather(globa, loca, desc_a, info, root, dupl,keepnum,keeploc)
#if defined(HAVE_ISO_FORTRAN_ENV)
use iso_fortran_env

2
base/comm/psb_egather_a.f90
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@ -31,7 +31,7 @@
!
! File: psb_egather.f90
!
! Subroutine: psb_egatherm
! Subroutine: psb_egather
! This subroutine gathers pieces of a distributed dense matrix into a local one.
!
! Arguments:

16
base/comm/psb_escatter_a.F90
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@ -33,7 +33,7 @@
!
! Subroutine: psb_escatterm
! This subroutine scatters a global matrix locally owned by one process
! into pieces that are local to alle the processes.
! into pieces that are local to all the processes.
!
! Arguments:
! globx - integer,dimension(:,:). The global matrix to scatter.
@ -107,8 +107,8 @@ subroutine psb_escatterm(globx, locx, desc_a, info, root)
m = desc_a%get_global_rows()
n = desc_a%get_global_cols()
call psb_get_mpicomm(ictxt,icomm)
call psb_get_rank(myrank,ictxt,me)
icomm = psb_get_mpi_comm(ictxt)
myrank = psb_get_mpi_rank(ictxt,me)
if (iroot==-1) then
lda_globx = size(globx, 1)
@ -159,7 +159,7 @@ subroutine psb_escatterm(globx, locx, desc_a, info, root)
end do
else
call psb_get_rank(rootrank,ictxt,iroot)
rootrank = psb_get_mpi_rank(ictxt,iroot)
!
! This is potentially unsafe when IPK=8
! But then, IPK=8 is highly experimental anyway.
@ -278,7 +278,7 @@ end subroutine psb_escatterm
! Subroutine: psb_escatterv
! This subroutine scatters a global vector locally owned by one process
! into pieces that are local to alle the processes.
! into pieces that are local to all the processes.
!
! Arguments:
! globx - integer,dimension(:). The global vector to scatter.
@ -347,8 +347,8 @@ subroutine psb_escatterv(globx, locx, desc_a, info, root)
iroot = psb_root_
end if
call psb_get_mpicomm(ictxt,icomm)
call psb_get_rank(myrank,ictxt,iam)
icomm = psb_get_mpi_comm(ictxt)
myrank = psb_get_mpi_rank(ictxt,iam)
iglobx = 1
jglobx = 1
@ -394,7 +394,7 @@ subroutine psb_escatterv(globx, locx, desc_a, info, root)
locx(i)=globx(ltg(i))
end do
else
call psb_get_rank(rootrank,ictxt,iroot)
rootrank = psb_get_mpi_rank(ictxt,iroot)
!
! This is potentially unsafe when IPK=8
! But then, IPK=8 is highly experimental anyway.

12
base/comm/psb_igather.f90
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@ -31,14 +31,14 @@
!
! File: psb_igather.f90
!
! Subroutine: psb_igatherm
! This subroutine gathers pieces of a distributed dense matrix into a local one.
! Subroutine: psb_igather_vect
! This subroutine gathers pieces of a distributed vector into a local one.
!
! Arguments:
! globx - integer,dimension(:,:). The local matrix into which gather
! globx - integer,dimension(:). The local matrix into which gather
! the distributed pieces.
! locx - integer,dimension(:,:). The local piece of the distributed
! matrix to be gathered.
! locx - type(psb_i_vect_type@ The local piece of the distributed
! vector to be gathered.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Error code.
! iroot - integer. The process that has to own the
@ -159,6 +159,8 @@ subroutine psb_igather_vect(globx, locx, desc_a, info, iroot)
end subroutine psb_igather_vect
! Subroutine: psb_igather_multivect
! This subroutine gathers pieces of a distributed multivector into a local one.
subroutine psb_igather_multivect(globx, locx, desc_a, info, iroot)
use psb_base_mod, psb_protect_name => psb_igather_multivect

32
base/comm/psb_ihalo.f90
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@ -31,17 +31,17 @@
!
! File: psb_ihalo.f90
!
! Subroutine: psb_ihalom
! Subroutine: psb_ihalo_vect
! This subroutine performs the exchange of the halo elements in a
! distributed dense matrix between all the processes.
! distributed vector between all the processes.
!
! Arguments:
! x - integer,dimension(:,:). The local part of the dense matrix.
! x - type(psb_i_vect_type) The local part of the vector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
! jx - integer(optional). The starting column of the global matrix.
! ik - integer(optional). The number of columns to gather.
! work - integer(optional). Work area.
! work - integer(optional). Work area.
! tran - character(optional). Transpose exchange.
! mode - integer(optional). Communication mode (see Swapdata)
! data - integer Which index list in desc_a should be used
@ -52,7 +52,6 @@
! psb_comm_mov_ use ovr_mst_idx
!
!
subroutine psb_ihalo_vect(x,desc_a,info,work,tran,mode,data)
use psb_base_mod, psb_protect_name => psb_ihalo_vect
use psi_mod
@ -185,7 +184,28 @@ subroutine psb_ihalo_vect(x,desc_a,info,work,tran,mode,data)
return
end subroutine psb_ihalo_vect
!
! Subroutine: psb_ihalo_multivect
! This subroutine performs the exchange of the halo elements in a
! distributed multivector between all the processes.
!
! Arguments:
! x - type(psb_i_multivect_type) The local part of the multivector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
! jx - integer(optional). The starting column of the global matrix.
! ik - integer(optional). The number of columns to gather.
! work - integer(optional). Work area.
! tran - character(optional). Transpose exchange.
! mode - integer(optional). Communication mode (see Swapdata)
! data - integer Which index list in desc_a should be used
! to retrieve rows, default psb_comm_halo_
! psb_comm_halo_ use halo_index
! psb_comm_ext_ use ext_index
! psb_comm_ovrl_ use ovrl_index
! psb_comm_mov_ use ovr_mst_idx
!
!
subroutine psb_ihalo_multivect(x,desc_a,info,work,tran,mode,data)
use psb_base_mod, psb_protect_name => psb_ihalo_multivect
use psi_mod

39
base/comm/psb_iovrl.f90
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@ -32,12 +32,12 @@
!
! File: psb_iovrl.f90
!
! Subroutine: psb_iovrlm
! Subroutine: psb_iovrl_vect
! This subroutine performs the exchange of the overlap elements in a
! distributed dense matrix between all the processes.
! distributed dense vector between all the processes.
!
! Arguments:
! x(:,:) - integer The local part of the dense matrix.
! x - type(psb_i_vect_type) The local part of the vector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code.
! jx - integer(optional). The starting column of the global matrix
@ -180,7 +180,38 @@ subroutine psb_iovrl_vect(x,desc_a,info,work,update,mode)
return
end subroutine psb_iovrl_vect
!
! Subroutine: psb_iovrl_multivect
! This subroutine performs the exchange of the overlap elements in a
! distributed multivector between all the processes.
!
! Arguments:
! x - type(psb_i_vect_type) The local part of the multivector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code.
! jx - integer(optional). The starting column of the global matrix
! ik - integer(optional). The number of columns to gather.
! work - integer(optional). A work area.
! update - integer(optional). Type of update:
! psb_none_ do nothing
! psb_sum_ sum of overlaps
! psb_avg_ average of overlaps
! mode - integer(optional). Choose the algorithm for data exchange:
! this is chosen through bit fields.
! - swap_mpi = iand(flag,psb_swap_mpi_) /= 0
! - swap_sync = iand(flag,psb_swap_sync_) /= 0
! - swap_send = iand(flag,psb_swap_send_) /= 0
! - swap_recv = iand(flag,psb_swap_recv_) /= 0
! - if (swap_mpi): use underlying MPI_ALLTOALLV.
! - if (swap_sync): use PSB_SND and PSB_RCV in
! synchronized pairs
! - if (swap_send .and. swap_recv): use mpi_irecv
! and mpi_send
! - if (swap_send): use psb_snd (but need another
! call with swap_recv to complete)
! - if (swap_recv): use psb_rcv (completing a
! previous call with swap_send)
!
subroutine psb_iovrl_multivect(x,desc_a,info,work,update,mode)
use psb_base_mod, psb_protect_name => psb_iovrl_multivect
use psi_mod

10
base/comm/psb_iscatter.F90
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@ -31,13 +31,13 @@
!
! File: psb_iscatter.f90
!
! Subroutine: psb_iscatterm
! This subroutine scatters a global matrix locally owned by one process
! into pieces that are local to alle the processes.
! Subroutine: psb_iscatter_vect
! This subroutine scatters a global vector locally owned by one process
! into pieces that are local to all the processes.
!
! Arguments:
! globx - integer,dimension(:,:). The global matrix to scatter.
! locx - integer,dimension(:,:). The local piece of the distributed matrix.
! globx - integer,dimension(:) The global matrix to scatter.
! locx - type(psb_i_vect_type) The local piece of the distributed matrix.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Error code.
! iroot - integer(optional). The process that owns the global matrix.

11
base/comm/psb_ispgather.F90
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@ -30,6 +30,17 @@
!
!
! File: psb_ispgather.f90
!
! Gathers a sparse matrix onto a single process.
! Two variants:
! 1. Gathers to PSB_i_SPARSE_MAT (i.e. to matrix with IPK_ indices)
! 2. Gathers to PSB_@LX@_SPARSE_MAT (i.e. to matrix with LPK_ indices)
!
! Note: this function uses MPI_ALLGATHERV. At this time, the size of the
! resulting matrix must be within the range of 4 bytes because of the
! restriction on MPI displacements to be 4 bytes.
!
!
subroutine psb_isp_allgather(globa, loca, desc_a, info, root, dupl,keepnum,keeploc)
#if defined(HAVE_ISO_FORTRAN_ENV)
use iso_fortran_env

12
base/comm/psb_lgather.f90
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@ -31,14 +31,14 @@
!
! File: psb_lgather.f90
!
! Subroutine: psb_lgatherm
! This subroutine gathers pieces of a distributed dense matrix into a local one.
! Subroutine: psb_lgather_vect
! This subroutine gathers pieces of a distributed vector into a local one.
!
! Arguments:
! globx - integer,dimension(:,:). The local matrix into which gather
! globx - integer,dimension(:). The local matrix into which gather
! the distributed pieces.
! locx - integer,dimension(:,:). The local piece of the distributed
! matrix to be gathered.
! locx - type(psb_l_vect_type@ The local piece of the distributed
! vector to be gathered.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Error code.
! iroot - integer. The process that has to own the
@ -159,6 +159,8 @@ subroutine psb_lgather_vect(globx, locx, desc_a, info, iroot)
end subroutine psb_lgather_vect
! Subroutine: psb_lgather_multivect
! This subroutine gathers pieces of a distributed multivector into a local one.
subroutine psb_lgather_multivect(globx, locx, desc_a, info, iroot)
use psb_base_mod, psb_protect_name => psb_lgather_multivect

32
base/comm/psb_lhalo.f90
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@ -31,17 +31,17 @@
!
! File: psb_lhalo.f90
!
! Subroutine: psb_lhalom
! Subroutine: psb_lhalo_vect
! This subroutine performs the exchange of the halo elements in a
! distributed dense matrix between all the processes.
! distributed vector between all the processes.
!
! Arguments:
! x - integer,dimension(:,:). The local part of the dense matrix.
! x - type(psb_l_vect_type) The local part of the vector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
! jx - integer(optional). The starting column of the global matrix.
! ik - integer(optional). The number of columns to gather.
! work - integer(optional). Work area.
! work - integer(optional). Work area.
! tran - character(optional). Transpose exchange.
! mode - integer(optional). Communication mode (see Swapdata)
! data - integer Which index list in desc_a should be used
@ -52,7 +52,6 @@
! psb_comm_mov_ use ovr_mst_idx
!
!
subroutine psb_lhalo_vect(x,desc_a,info,work,tran,mode,data)
use psb_base_mod, psb_protect_name => psb_lhalo_vect
use psi_mod
@ -185,7 +184,28 @@ subroutine psb_lhalo_vect(x,desc_a,info,work,tran,mode,data)
return
end subroutine psb_lhalo_vect
!
! Subroutine: psb_lhalo_multivect
! This subroutine performs the exchange of the halo elements in a
! distributed multivector between all the processes.
!
! Arguments:
! x - type(psb_l_multivect_type) The local part of the multivector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
! jx - integer(optional). The starting column of the global matrix.
! ik - integer(optional). The number of columns to gather.
! work - integer(optional). Work area.
! tran - character(optional). Transpose exchange.
! mode - integer(optional). Communication mode (see Swapdata)
! data - integer Which index list in desc_a should be used
! to retrieve rows, default psb_comm_halo_
! psb_comm_halo_ use halo_index
! psb_comm_ext_ use ext_index
! psb_comm_ovrl_ use ovrl_index
! psb_comm_mov_ use ovr_mst_idx
!
!
subroutine psb_lhalo_multivect(x,desc_a,info,work,tran,mode,data)
use psb_base_mod, psb_protect_name => psb_lhalo_multivect
use psi_mod

39
base/comm/psb_lovrl.f90
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@ -32,12 +32,12 @@
!
! File: psb_lovrl.f90
!
! Subroutine: psb_lovrlm
! Subroutine: psb_lovrl_vect
! This subroutine performs the exchange of the overlap elements in a
! distributed dense matrix between all the processes.
! distributed dense vector between all the processes.
!
! Arguments:
! x(:,:) - integer The local part of the dense matrix.
! x - type(psb_l_vect_type) The local part of the vector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code.
! jx - integer(optional). The starting column of the global matrix
@ -180,7 +180,38 @@ subroutine psb_lovrl_vect(x,desc_a,info,work,update,mode)
return
end subroutine psb_lovrl_vect
!
! Subroutine: psb_lovrl_multivect
! This subroutine performs the exchange of the overlap elements in a
! distributed multivector between all the processes.
!
! Arguments:
! x - type(psb_l_vect_type) The local part of the multivector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code.
! jx - integer(optional). The starting column of the global matrix
! ik - integer(optional). The number of columns to gather.
! work - integer(optional). A work area.
! update - integer(optional). Type of update:
! psb_none_ do nothing
! psb_sum_ sum of overlaps
! psb_avg_ average of overlaps
! mode - integer(optional). Choose the algorithm for data exchange:
! this is chosen through bit fields.
! - swap_mpi = iand(flag,psb_swap_mpi_) /= 0
! - swap_sync = iand(flag,psb_swap_sync_) /= 0
! - swap_send = iand(flag,psb_swap_send_) /= 0
! - swap_recv = iand(flag,psb_swap_recv_) /= 0
! - if (swap_mpi): use underlying MPI_ALLTOALLV.
! - if (swap_sync): use PSB_SND and PSB_RCV in
! synchronized pairs
! - if (swap_send .and. swap_recv): use mpi_irecv
! and mpi_send
! - if (swap_send): use psb_snd (but need another
! call with swap_recv to complete)
! - if (swap_recv): use psb_rcv (completing a
! previous call with swap_send)
!
subroutine psb_lovrl_multivect(x,desc_a,info,work,update,mode)
use psb_base_mod, psb_protect_name => psb_lovrl_multivect
use psi_mod

10
base/comm/psb_lscatter.F90
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@ -31,13 +31,13 @@
!
! File: psb_lscatter.f90
!
! Subroutine: psb_lscatterm
! This subroutine scatters a global matrix locally owned by one process
! into pieces that are local to alle the processes.
! Subroutine: psb_lscatter_vect
! This subroutine scatters a global vector locally owned by one process
! into pieces that are local to all the processes.
!
! Arguments:
! globx - integer,dimension(:,:). The global matrix to scatter.
! locx - integer,dimension(:,:). The local piece of the distributed matrix.
! globx - integer,dimension(:) The global matrix to scatter.
! locx - type(psb_l_vect_type) The local piece of the distributed matrix.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Error code.
! iroot - integer(optional). The process that owns the global matrix.

11
base/comm/psb_lspgather.F90
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@ -30,6 +30,17 @@
!
!
! File: psb_lspgather.f90
!
! Gathers a sparse matrix onto a single process.
! Two variants:
! 1. Gathers to PSB_l_SPARSE_MAT (i.e. to matrix with IPK_ indices)
! 2. Gathers to PSB_@LX@_SPARSE_MAT (i.e. to matrix with LPK_ indices)
!
! Note: this function uses MPI_ALLGATHERV. At this time, the size of the
! resulting matrix must be within the range of 4 bytes because of the
! restriction on MPI displacements to be 4 bytes.
!
!
subroutine psb_lsp_allgather(globa, loca, desc_a, info, root, dupl,keepnum,keeploc)
#if defined(HAVE_ISO_FORTRAN_ENV)
use iso_fortran_env

2
base/comm/psb_mgather_a.f90
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@ -31,7 +31,7 @@
!
! File: psb_mgather.f90
!
! Subroutine: psb_mgatherm
! Subroutine: psb_mgather
! This subroutine gathers pieces of a distributed dense matrix into a local one.
!
! Arguments:

16
base/comm/psb_mscatter_a.F90
Unescape Escape View File

@ -33,7 +33,7 @@
!
! Subroutine: psb_mscatterm
! This subroutine scatters a global matrix locally owned by one process
! into pieces that are local to alle the processes.
! into pieces that are local to all the processes.
!
! Arguments:
! globx - integer,dimension(:,:). The global matrix to scatter.
@ -107,8 +107,8 @@ subroutine psb_mscatterm(globx, locx, desc_a, info, root)
m = desc_a%get_global_rows()
n = desc_a%get_global_cols()
call psb_get_mpicomm(ictxt,icomm)
call psb_get_rank(myrank,ictxt,me)
icomm = psb_get_mpi_comm(ictxt)
myrank = psb_get_mpi_rank(ictxt,me)
if (iroot==-1) then
lda_globx = size(globx, 1)
@ -159,7 +159,7 @@ subroutine psb_mscatterm(globx, locx, desc_a, info, root)
end do
else
call psb_get_rank(rootrank,ictxt,iroot)
rootrank = psb_get_mpi_rank(ictxt,iroot)
!
! This is potentially unsafe when IPK=8
! But then, IPK=8 is highly experimental anyway.
@ -278,7 +278,7 @@ end subroutine psb_mscatterm
! Subroutine: psb_mscatterv
! This subroutine scatters a global vector locally owned by one process
! into pieces that are local to alle the processes.
! into pieces that are local to all the processes.
!
! Arguments:
! globx - integer,dimension(:). The global vector to scatter.
@ -347,8 +347,8 @@ subroutine psb_mscatterv(globx, locx, desc_a, info, root)
iroot = psb_root_
end if
call psb_get_mpicomm(ictxt,icomm)
call psb_get_rank(myrank,ictxt,iam)
icomm = psb_get_mpi_comm(ictxt)
myrank = psb_get_mpi_rank(ictxt,iam)
iglobx = 1
jglobx = 1
@ -394,7 +394,7 @@ subroutine psb_mscatterv(globx, locx, desc_a, info, root)
locx(i)=globx(ltg(i))
end do
else
call psb_get_rank(rootrank,ictxt,iroot)
rootrank = psb_get_mpi_rank(ictxt,iroot)
!
! This is potentially unsafe when IPK=8
! But then, IPK=8 is highly experimental anyway.

12
base/comm/psb_sgather.f90
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@ -31,14 +31,14 @@
!
! File: psb_sgather.f90
!
! Subroutine: psb_sgatherm
! This subroutine gathers pieces of a distributed dense matrix into a local one.
! Subroutine: psb_sgather_vect
! This subroutine gathers pieces of a distributed vector into a local one.
!
! Arguments:
! globx - real,dimension(:,:). The local matrix into which gather
! globx - real,dimension(:). The local matrix into which gather
! the distributed pieces.
! locx - real,dimension(:,:). The local piece of the distributed
! matrix to be gathered.
! locx - type(psb_s_vect_type@ The local piece of the distributed
! vector to be gathered.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Error code.
! iroot - integer. The process that has to own the
@ -159,6 +159,8 @@ subroutine psb_sgather_vect(globx, locx, desc_a, info, iroot)
end subroutine psb_sgather_vect
! Subroutine: psb_sgather_multivect
! This subroutine gathers pieces of a distributed multivector into a local one.
subroutine psb_sgather_multivect(globx, locx, desc_a, info, iroot)
use psb_base_mod, psb_protect_name => psb_sgather_multivect

2
base/comm/psb_sgather_a.f90
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@ -31,7 +31,7 @@
!
! File: psb_sgather.f90
!
! Subroutine: psb_sgatherm
! Subroutine: psb_sgather
! This subroutine gathers pieces of a distributed dense matrix into a local one.
!
! Arguments:

32
base/comm/psb_shalo.f90
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@ -31,17 +31,17 @@
!
! File: psb_shalo.f90
!
! Subroutine: psb_shalom
! Subroutine: psb_shalo_vect
! This subroutine performs the exchange of the halo elements in a
! distributed dense matrix between all the processes.
! distributed vector between all the processes.
!
! Arguments:
! x - real,dimension(:,:). The local part of the dense matrix.
! x - type(psb_s_vect_type) The local part of the vector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
! jx - integer(optional). The starting column of the global matrix.
! ik - integer(optional). The number of columns to gather.
! work - real(optional). Work area.
! work - real(optional). Work area.
! tran - character(optional). Transpose exchange.
! mode - integer(optional). Communication mode (see Swapdata)
! data - integer Which index list in desc_a should be used
@ -52,7 +52,6 @@
! psb_comm_mov_ use ovr_mst_idx
!
!
subroutine psb_shalo_vect(x,desc_a,info,work,tran,mode,data)
use psb_base_mod, psb_protect_name => psb_shalo_vect
use psi_mod
@ -185,7 +184,28 @@ subroutine psb_shalo_vect(x,desc_a,info,work,tran,mode,data)
return
end subroutine psb_shalo_vect
!
! Subroutine: psb_shalo_multivect
! This subroutine performs the exchange of the halo elements in a
! distributed multivector between all the processes.
!
! Arguments:
! x - type(psb_s_multivect_type) The local part of the multivector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
! jx - integer(optional). The starting column of the global matrix.
! ik - integer(optional). The number of columns to gather.
! work - real(optional). Work area.
! tran - character(optional). Transpose exchange.
! mode - integer(optional). Communication mode (see Swapdata)
! data - integer Which index list in desc_a should be used
! to retrieve rows, default psb_comm_halo_
! psb_comm_halo_ use halo_index
! psb_comm_ext_ use ext_index
! psb_comm_ovrl_ use ovrl_index
! psb_comm_mov_ use ovr_mst_idx
!
!
subroutine psb_shalo_multivect(x,desc_a,info,work,tran,mode,data)
use psb_base_mod, psb_protect_name => psb_shalo_multivect
use psi_mod

39
base/comm/psb_sovrl.f90
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@ -32,12 +32,12 @@
!
! File: psb_sovrl.f90
!
! Subroutine: psb_sovrlm
! Subroutine: psb_sovrl_vect
! This subroutine performs the exchange of the overlap elements in a
! distributed dense matrix between all the processes.
! distributed dense vector between all the processes.
!
! Arguments:
! x(:,:) - real The local part of the dense matrix.
! x - type(psb_s_vect_type) The local part of the vector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code.
! jx - integer(optional). The starting column of the global matrix
@ -180,7 +180,38 @@ subroutine psb_sovrl_vect(x,desc_a,info,work,update,mode)
return
end subroutine psb_sovrl_vect
!
! Subroutine: psb_sovrl_multivect
! This subroutine performs the exchange of the overlap elements in a
! distributed multivector between all the processes.
!
! Arguments:
! x - type(psb_s_vect_type) The local part of the multivector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code.
! jx - integer(optional). The starting column of the global matrix
! ik - integer(optional). The number of columns to gather.
! work - real(optional). A work area.
! update - integer(optional). Type of update:
! psb_none_ do nothing
! psb_sum_ sum of overlaps
! psb_avg_ average of overlaps
! mode - integer(optional). Choose the algorithm for data exchange:
! this is chosen through bit fields.
! - swap_mpi = iand(flag,psb_swap_mpi_) /= 0
! - swap_sync = iand(flag,psb_swap_sync_) /= 0
! - swap_send = iand(flag,psb_swap_send_) /= 0
! - swap_recv = iand(flag,psb_swap_recv_) /= 0
! - if (swap_mpi): use underlying MPI_ALLTOALLV.
! - if (swap_sync): use PSB_SND and PSB_RCV in
! synchronized pairs
! - if (swap_send .and. swap_recv): use mpi_irecv
! and mpi_send
! - if (swap_send): use psb_snd (but need another
! call with swap_recv to complete)
! - if (swap_recv): use psb_rcv (completing a
! previous call with swap_send)
!
subroutine psb_sovrl_multivect(x,desc_a,info,work,update,mode)
use psb_base_mod, psb_protect_name => psb_sovrl_multivect
use psi_mod

10
base/comm/psb_sscatter.F90
Unescape Escape View File

@ -31,13 +31,13 @@
!
! File: psb_sscatter.f90
!
! Subroutine: psb_sscatterm
! This subroutine scatters a global matrix locally owned by one process
! into pieces that are local to alle the processes.
! Subroutine: psb_sscatter_vect
! This subroutine scatters a global vector locally owned by one process
! into pieces that are local to all the processes.
!
! Arguments:
! globx - real,dimension(:,:). The global matrix to scatter.
! locx - real,dimension(:,:). The local piece of the distributed matrix.
! globx - real,dimension(:) The global matrix to scatter.
! locx - type(psb_s_vect_type) The local piece of the distributed matrix.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Error code.
! iroot - integer(optional). The process that owns the global matrix.

16
base/comm/psb_sscatter_a.F90
Unescape Escape View File

@ -33,7 +33,7 @@
!
! Subroutine: psb_sscatterm
! This subroutine scatters a global matrix locally owned by one process
! into pieces that are local to alle the processes.
! into pieces that are local to all the processes.
!
! Arguments:
! globx - real,dimension(:,:). The global matrix to scatter.
@ -107,8 +107,8 @@ subroutine psb_sscatterm(globx, locx, desc_a, info, root)
m = desc_a%get_global_rows()
n = desc_a%get_global_cols()
call psb_get_mpicomm(ictxt,icomm)
call psb_get_rank(myrank,ictxt,me)
icomm = psb_get_mpi_comm(ictxt)
myrank = psb_get_mpi_rank(ictxt,me)
if (iroot==-1) then
lda_globx = size(globx, 1)
@ -159,7 +159,7 @@ subroutine psb_sscatterm(globx, locx, desc_a, info, root)
end do
else
call psb_get_rank(rootrank,ictxt,iroot)
rootrank = psb_get_mpi_rank(ictxt,iroot)
!
! This is potentially unsafe when IPK=8
! But then, IPK=8 is highly experimental anyway.
@ -278,7 +278,7 @@ end subroutine psb_sscatterm
! Subroutine: psb_sscatterv
! This subroutine scatters a global vector locally owned by one process
! into pieces that are local to alle the processes.
! into pieces that are local to all the processes.
!
! Arguments:
! globx - real,dimension(:). The global vector to scatter.
@ -347,8 +347,8 @@ subroutine psb_sscatterv(globx, locx, desc_a, info, root)
iroot = psb_root_
end if
call psb_get_mpicomm(ictxt,icomm)
call psb_get_rank(myrank,ictxt,iam)
icomm = psb_get_mpi_comm(ictxt)
myrank = psb_get_mpi_rank(ictxt,iam)
iglobx = 1
jglobx = 1
@ -394,7 +394,7 @@ subroutine psb_sscatterv(globx, locx, desc_a, info, root)
locx(i)=globx(ltg(i))
end do
else
call psb_get_rank(rootrank,ictxt,iroot)
rootrank = psb_get_mpi_rank(ictxt,iroot)
!
! This is potentially unsafe when IPK=8
! But then, IPK=8 is highly experimental anyway.

11
base/comm/psb_sspgather.F90
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@ -30,6 +30,17 @@
!
!
! File: psb_sspgather.f90
!
! Gathers a sparse matrix onto a single process.
! Two variants:
! 1. Gathers to PSB_s_SPARSE_MAT (i.e. to matrix with IPK_ indices)
! 2. Gathers to PSB_ls_SPARSE_MAT (i.e. to matrix with LPK_ indices)
!
! Note: this function uses MPI_ALLGATHERV. At this time, the size of the
! resulting matrix must be within the range of 4 bytes because of the
! restriction on MPI displacements to be 4 bytes.
!
!
subroutine psb_ssp_allgather(globa, loca, desc_a, info, root, dupl,keepnum,keeploc)
#if defined(HAVE_ISO_FORTRAN_ENV)
use iso_fortran_env

12
base/comm/psb_zgather.f90
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@ -31,14 +31,14 @@
!
! File: psb_zgather.f90
!
! Subroutine: psb_zgatherm
! This subroutine gathers pieces of a distributed dense matrix into a local one.
! Subroutine: psb_zgather_vect
! This subroutine gathers pieces of a distributed vector into a local one.
!
! Arguments:
! globx - complex,dimension(:,:). The local matrix into which gather
! globx - complex,dimension(:). The local matrix into which gather
! the distributed pieces.
! locx - complex,dimension(:,:). The local piece of the distributed
! matrix to be gathered.
! locx - type(psb_z_vect_type@ The local piece of the distributed
! vector to be gathered.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Error code.
! iroot - integer. The process that has to own the
@ -159,6 +159,8 @@ subroutine psb_zgather_vect(globx, locx, desc_a, info, iroot)
end subroutine psb_zgather_vect
! Subroutine: psb_zgather_multivect
! This subroutine gathers pieces of a distributed multivector into a local one.
subroutine psb_zgather_multivect(globx, locx, desc_a, info, iroot)
use psb_base_mod, psb_protect_name => psb_zgather_multivect

2
base/comm/psb_zgather_a.f90
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@ -31,7 +31,7 @@
!
! File: psb_zgather.f90
!
! Subroutine: psb_zgatherm
! Subroutine: psb_zgather
! This subroutine gathers pieces of a distributed dense matrix into a local one.
!
! Arguments:

32
base/comm/psb_zhalo.f90
Unescape Escape View File

@ -31,17 +31,17 @@
!
! File: psb_zhalo.f90
!
! Subroutine: psb_zhalom
! Subroutine: psb_zhalo_vect
! This subroutine performs the exchange of the halo elements in a
! distributed dense matrix between all the processes.
! distributed vector between all the processes.
!
! Arguments:
! x - complex,dimension(:,:). The local part of the dense matrix.
! x - type(psb_z_vect_type) The local part of the vector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
! jx - integer(optional). The starting column of the global matrix.
! ik - integer(optional). The number of columns to gather.
! work - complex(optional). Work area.
! work - complex(optional). Work area.
! tran - character(optional). Transpose exchange.
! mode - integer(optional). Communication mode (see Swapdata)
! data - integer Which index list in desc_a should be used
@ -52,7 +52,6 @@
! psb_comm_mov_ use ovr_mst_idx
!
!
subroutine psb_zhalo_vect(x,desc_a,info,work,tran,mode,data)
use psb_base_mod, psb_protect_name => psb_zhalo_vect
use psi_mod
@ -185,7 +184,28 @@ subroutine psb_zhalo_vect(x,desc_a,info,work,tran,mode,data)
return
end subroutine psb_zhalo_vect
!
! Subroutine: psb_zhalo_multivect
! This subroutine performs the exchange of the halo elements in a
! distributed multivector between all the processes.
!
! Arguments:
! x - type(psb_z_multivect_type) The local part of the multivector
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
! jx - integer(optional). The starting column of the global matrix.
! ik - integer(optional). The number of columns to gather.
! work - complex(optional). Work area.
! tran - character(optional). Transpose exchange.
! mode - integer(optional). Communication mode (see Swapdata)
! data - integer Which index list in desc_a should be used
! to retrieve rows, default psb_comm_halo_
! psb_comm_halo_ use halo_index
! psb_comm_ext_ use ext_index
! psb_comm_ovrl_ use ovrl_index
! psb_comm_mov_ use ovr_mst_idx
!
!
subroutine psb_zhalo_multivect(x,desc_a,info,work,tran,mode,data)
use psb_base_mod, psb_protect_name => psb_zhalo_multivect
use psi_mod

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