You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1151 lines
36 KiB
Fortran
1151 lines
36 KiB
Fortran
!
|
|
! Parallel Sparse BLAS version 3.5
|
|
! (C) Copyright 2006, 2010, 2015, 2017
|
|
! Salvatore Filippone Cranfield University
|
|
! Alfredo Buttari CNRS-IRIT, Toulouse
|
|
!
|
|
! Redistribution and use in source and binary forms, with or without
|
|
! modification, are permitted provided that the following conditions
|
|
! are met:
|
|
! 1. Redistributions of source code must retain the above copyright
|
|
! notice, this list of conditions and the following disclaimer.
|
|
! 2. Redistributions in binary form must reproduce the above copyright
|
|
! notice, this list of conditions, and the following disclaimer in the
|
|
! documentation and/or other materials provided with the distribution.
|
|
! 3. The name of the PSBLAS group or the names of its contributors may
|
|
! not be used to endorse or promote products derived from this
|
|
! software without specific written permission.
|
|
!
|
|
! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
! ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
! TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
! PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
|
|
! BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
! POSSIBILITY OF SUCH DAMAGE.
|
|
!
|
|
!
|
|
!
|
|
! File: psi_dswapdata.F90
|
|
!
|
|
! Subroutine: psi_dswapdatam
|
|
! Does 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
|
|
! In all these subroutines X may be: I Integer
|
|
! S real(psb_spk_)
|
|
! D real(psb_dpk_)
|
|
! 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.
|
|
! 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.
|
|
!
|
|
! Arguments:
|
|
! flag - integer 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)
|
|
!
|
|
!
|
|
! 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
|
|
! our own internal allocation.
|
|
! info - integer. return code.
|
|
! data - integer which list is to be used to exchange data
|
|
! 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 psi_dswapdatam(flag,n,beta,y,desc_a,work,info,data)
|
|
|
|
use psi_mod, psb_protect_name => psi_dswapdatam
|
|
use psb_error_mod
|
|
use psb_desc_mod
|
|
use psb_penv_mod
|
|
use psb_caf_mod
|
|
#ifdef MPI_MOD
|
|
use mpi
|
|
#endif
|
|
implicit none
|
|
#ifdef MPI_H
|
|
include 'mpif.h'
|
|
#endif
|
|
|
|
integer(psb_ipk_), intent(in) :: flag, n
|
|
integer(psb_ipk_), intent(out) :: info
|
|
real(psb_dpk_) :: y(:,:), beta
|
|
real(psb_dpk_), target :: work(:)
|
|
type(psb_desc_type),target :: desc_a
|
|
integer(psb_ipk_), optional :: data
|
|
|
|
! locals
|
|
integer(psb_ipk_) :: ictxt, np, me, icomm, idxs, idxr, totxch, data_, err_act
|
|
integer(psb_ipk_), pointer :: d_idx(:)
|
|
class(psb_xch_idx_type), pointer :: d_xchg
|
|
character(len=20) :: name
|
|
|
|
info=psb_success_
|
|
name='psi_swap_data'
|
|
call psb_erractionsave(err_act)
|
|
|
|
ictxt = desc_a%get_context()
|
|
icomm = desc_a%get_mpic()
|
|
call psb_info(ictxt,me,np)
|
|
if (np == -1) then
|
|
info=psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
if (.not.psb_is_asb_desc(desc_a)) then
|
|
info=psb_err_invalid_cd_state_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
if(present(data)) then
|
|
data_ = data
|
|
else
|
|
data_ = psb_comm_halo_
|
|
end if
|
|
|
|
call desc_a%get_list(data_,d_idx,totxch,idxr,idxs,info)
|
|
if (info == 0) call desc_a%get_list(data_,d_xchg,info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_internal_error_,name,a_err='psb_cd_get_list')
|
|
goto 9999
|
|
end if
|
|
|
|
if (if_caf2) then
|
|
call psi_swapdata(ictxt,icomm,flag,n,beta,y,d_xchg,info)
|
|
endif
|
|
|
|
if (info /= psb_success_) goto 9999
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ictxt,err_act)
|
|
|
|
return
|
|
end subroutine psi_dswapdatam
|
|
|
|
subroutine psi_dswap_xchg_m(iictxt,iicomm,flag,m,beta,y,xchg,info)
|
|
use psi_mod, psb_protect_name => psi_dswap_xchg_m
|
|
use psb_error_mod
|
|
use psb_realloc_mod
|
|
use psb_desc_mod
|
|
use psb_penv_mod
|
|
use psb_d_base_vect_mod
|
|
use iso_fortran_env
|
|
implicit none
|
|
integer(psb_ipk_), intent(in) :: iictxt,iicomm,flag, m
|
|
integer(psb_ipk_), intent(out) :: info
|
|
real(psb_dpk_) :: y(:,:)
|
|
real(psb_dpk_) :: beta
|
|
class(psb_xch_idx_type), intent(inout) :: xchg
|
|
! locals
|
|
integer(psb_mpik_) :: ictxt, icomm, np, me,&
|
|
& proc_to_comm, p2ptag, iret
|
|
integer(psb_ipk_) :: nesd, nerv,&
|
|
& err_act, i, idx_pt, totsnd_, totrcv_,p1,p2,isz,rp1,rp2,&
|
|
& snd_pt, rcv_pt, pnti, n, ip, img, nxch, myself
|
|
integer :: count
|
|
real(psb_dpk_), allocatable, save :: buffer(:)[:], sndbuf(:)
|
|
type(event_type), allocatable, save :: ufg(:)[:]
|
|
type(event_type), allocatable, save :: clear[:]
|
|
integer, save :: last_clear_count = 0
|
|
logical :: swap_mpi, swap_sync, swap_send, swap_recv,&
|
|
& albf,do_send,do_recv
|
|
integer(psb_ipk_) :: ierr(5)
|
|
character(len=20) :: name
|
|
|
|
info=psb_success_
|
|
name='psi_swap_xchg_m'
|
|
call psb_erractionsave(err_act)
|
|
ictxt = iictxt
|
|
icomm = iicomm
|
|
call psb_info(ictxt,me,np)
|
|
if (np == -1) then
|
|
info=psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
n=1
|
|
|
|
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
|
|
do_send = swap_mpi .or. swap_sync .or. swap_send
|
|
do_recv = swap_mpi .or. swap_sync .or. swap_recv
|
|
|
|
if (.not.(do_send.and.do_recv)) then
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='Unimplemented case in xchg_vect')
|
|
goto 9999
|
|
end if
|
|
|
|
if (.not.allocated(ufg)) then
|
|
!write(*,*) 'Allocating events',np
|
|
allocate(ufg(np)[*],stat=info)
|
|
if (info == 0) allocate(clear[*],stat=info)
|
|
if (info /= 0) then
|
|
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='Coarray events allocation')
|
|
goto 9999
|
|
end if
|
|
else
|
|
|
|
if (last_clear_count>0) &
|
|
& event wait(clear,until_count=last_clear_count)
|
|
end if
|
|
|
|
if (psb_size(buffer) < xchg%max_buffer_size) then
|
|
!
|
|
! By construction, max_buffer_size was computed with a collective.
|
|
!
|
|
if (allocated(buffer)) deallocate(buffer)
|
|
if (allocated(sndbuf)) deallocate(sndbuf)
|
|
!write(*,*) 'Allocating buffer',xchg%max_buffer_size
|
|
allocate(buffer(xchg%max_buffer_size)[*],stat=info)
|
|
if (info == 0) allocate(sndbuf(xchg%max_buffer_size),stat=info)
|
|
if (info /= 0) then
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='Coarray buffer allocation')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
|
|
if (.false.) then
|
|
nxch = size(xchg%prcs_xch)
|
|
myself = this_image()
|
|
do ip = 1, nxch
|
|
img = xchg%prcs_xch(ip) + 1
|
|
p1 = xchg%loc_snd_bnd(ip)
|
|
p2 = xchg%loc_snd_bnd(ip+1)-1
|
|
rp1 = xchg%rmt_rcv_bnd(ip,1)
|
|
rp2 = xchg%rmt_rcv_bnd(ip,2)
|
|
isz = p2-p1+1
|
|
!write(0,*) myself,'Posting for ',img,' boundaries: ',p1,p2
|
|
call psi_gth(isz,m,xchg%loc_snd_idx(p1:p2),y,buffer(p1:p2))
|
|
event post(ufg(myself)[img])
|
|
end do
|
|
|
|
do ip = 1, nxch
|
|
img = xchg%prcs_xch(ip) + 1
|
|
event wait(ufg(img))
|
|
img = xchg%prcs_xch(ip) + 1
|
|
p1 = xchg%loc_rcv_bnd(ip)
|
|
p2 = xchg%loc_rcv_bnd(ip+1)-1
|
|
isz = p2-p1+1
|
|
rp1 = xchg%rmt_snd_bnd(ip,1)
|
|
rp2 = xchg%rmt_snd_bnd(ip,2)
|
|
!write(0,*) myself,'Getting from ',img,'Remote boundaries: ',rp1,rp2
|
|
call psi_sct(isz,m,xchg%loc_rcv_idx(p1:p2),buffer(rp1:rp2)[img],beta,y)
|
|
event post(clear[img])
|
|
|
|
end do
|
|
last_clear_count = nxch
|
|
else
|
|
nxch = size(xchg%prcs_xch)
|
|
myself = this_image()
|
|
do ip = 1, nxch
|
|
img = xchg%prcs_xch(ip) + 1
|
|
p1 = xchg%loc_snd_bnd(ip)
|
|
p2 = xchg%loc_snd_bnd(ip+1)-1
|
|
rp1 = xchg%rmt_rcv_bnd(ip,1)
|
|
rp2 = xchg%rmt_rcv_bnd(ip,2)
|
|
isz = p2-p1+1
|
|
call psi_gth(isz,m,xchg%loc_snd_idx(p1:p2),&
|
|
& y,sndbuf(p1:p2))
|
|
buffer(rp1:rp2)[img] = sndbuf(p1:p2)
|
|
end do
|
|
!
|
|
! Doing event post later should provide more opportunities for
|
|
! overlap
|
|
!
|
|
do ip= 1, nxch
|
|
img = xchg%prcs_xch(ip) + 1
|
|
event post(ufg(myself)[img])
|
|
end do
|
|
|
|
do ip = 1, nxch
|
|
img = xchg%prcs_xch(ip) + 1
|
|
event wait(ufg(img))
|
|
img = xchg%prcs_xch(ip) + 1
|
|
p1 = xchg%loc_rcv_bnd(ip)
|
|
p2 = xchg%loc_rcv_bnd(ip+1)-1
|
|
isz = p2-p1+1
|
|
rp1 = xchg%rmt_snd_bnd(ip,1)
|
|
rp2 = xchg%rmt_snd_bnd(ip,2)
|
|
!write(0,*) myself,'Getting from ',img,' boundaries: ',p1,p2
|
|
call psi_sct(isz,m,xchg%loc_rcv_idx(p1:p2),&
|
|
& buffer(p1:p2),beta, y)
|
|
event post(clear[img])
|
|
end do
|
|
|
|
last_clear_count = nxch
|
|
endif
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ictxt,err_act)
|
|
|
|
return
|
|
end subroutine psi_dswap_xchg_m
|
|
|
|
|
|
|
|
!
|
|
!
|
|
! Subroutine: psi_dswapdatav
|
|
! Does 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
|
|
! In all these subroutines X may be: I Integer
|
|
! S real(psb_spk_)
|
|
! D real(psb_dpk_)
|
|
! 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.
|
|
! 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.
|
|
!
|
|
! Arguments:
|
|
! flag - integer 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)
|
|
!
|
|
!
|
|
! 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
|
|
! our own internal allocation.
|
|
! info - integer. return code.
|
|
! data - integer which list is to be used to exchange data
|
|
! 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 psi_dswapdatav(flag,beta,y,desc_a,work,info,data)
|
|
|
|
use psi_mod, psb_protect_name => psi_dswapdatav
|
|
use psb_error_mod
|
|
use psb_desc_mod
|
|
use psb_penv_mod
|
|
use psb_caf_mod
|
|
#ifdef MPI_MOD
|
|
use mpi
|
|
#endif
|
|
implicit none
|
|
#ifdef MPI_H
|
|
include 'mpif.h'
|
|
#endif
|
|
|
|
integer(psb_ipk_), intent(in) :: flag
|
|
integer(psb_ipk_), intent(out) :: info
|
|
real(psb_dpk_) :: y(:), beta
|
|
real(psb_dpk_), target :: work(:)
|
|
type(psb_desc_type),target :: desc_a
|
|
integer(psb_ipk_), optional :: data
|
|
|
|
! locals
|
|
integer(psb_ipk_) :: ictxt, np, me, icomm, idxs, idxr, totxch, data_, err_act
|
|
integer(psb_ipk_), pointer :: d_idx(:)
|
|
class(psb_xch_idx_type), pointer :: d_xchg
|
|
character(len=20) :: name
|
|
|
|
info=psb_success_
|
|
name='psi_swap_datav'
|
|
call psb_erractionsave(err_act)
|
|
|
|
ictxt = desc_a%get_context()
|
|
icomm = desc_a%get_mpic()
|
|
call psb_info(ictxt,me,np)
|
|
if (np == -1) then
|
|
info=psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
if (.not.psb_is_asb_desc(desc_a)) then
|
|
info=psb_err_invalid_cd_state_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
if (present(data)) then
|
|
data_ = data
|
|
else
|
|
data_ = psb_comm_halo_
|
|
end if
|
|
|
|
call desc_a%get_list(data_,d_idx,totxch,idxr,idxs,info)
|
|
if (info == 0) call desc_a%get_list(data_,d_xchg,info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_internal_error_,name,a_err='psb_cd_get_list')
|
|
goto 9999
|
|
end if
|
|
|
|
if (if_caf2) then
|
|
call psi_swapdata(ictxt,icomm,flag,beta,y,d_xchg,info)
|
|
endif
|
|
|
|
if (info /= psb_success_) goto 9999
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ictxt,err_act)
|
|
|
|
return
|
|
end subroutine psi_dswapdatav
|
|
|
|
subroutine psi_dswap_xchg_v(iictxt,iicomm,flag,beta,y,xchg,info)
|
|
use psi_mod, psb_protect_name => psi_dswap_xchg_v
|
|
use psb_error_mod
|
|
use psb_realloc_mod
|
|
use psb_desc_mod
|
|
use psb_penv_mod
|
|
use psb_d_base_vect_mod
|
|
use iso_fortran_env
|
|
implicit none
|
|
integer(psb_ipk_), intent(in) :: iictxt,iicomm,flag
|
|
integer(psb_ipk_), intent(out) :: info
|
|
real(psb_dpk_) :: y(:)
|
|
real(psb_dpk_) :: beta
|
|
class(psb_xch_idx_type), intent(inout) :: xchg
|
|
! locals
|
|
integer(psb_mpik_) :: ictxt, icomm, np, me,&
|
|
& proc_to_comm, p2ptag, iret
|
|
integer(psb_ipk_) :: nesd, nerv,&
|
|
& err_act, i, idx_pt, totsnd_, totrcv_,p1,p2,isz,rp1,rp2,&
|
|
& snd_pt, rcv_pt, pnti, n, ip, img, nxch, myself
|
|
integer :: count
|
|
real(psb_dpk_), allocatable, save :: buffer(:)[:], sndbuf(:)
|
|
type(event_type), allocatable, save :: ufg(:)[:]
|
|
type(event_type), allocatable, save :: clear[:]
|
|
integer, save :: last_clear_count = 0
|
|
logical :: swap_mpi, swap_sync, swap_send, swap_recv,&
|
|
& albf,do_send,do_recv
|
|
integer(psb_ipk_) :: ierr(5)
|
|
character(len=20) :: name
|
|
|
|
info=psb_success_
|
|
name='psi_swap_xchg_v'
|
|
call psb_erractionsave(err_act)
|
|
ictxt = iictxt
|
|
icomm = iicomm
|
|
call psb_info(ictxt,me,np)
|
|
if (np == -1) then
|
|
info=psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
n=1
|
|
|
|
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
|
|
do_send = swap_mpi .or. swap_sync .or. swap_send
|
|
do_recv = swap_mpi .or. swap_sync .or. swap_recv
|
|
|
|
if (.not.(do_send.and.do_recv)) then
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='Unimplemented case in xchg_vect')
|
|
goto 9999
|
|
end if
|
|
|
|
if (.not.allocated(ufg)) then
|
|
!write(*,*) 'Allocating events',np
|
|
allocate(ufg(np)[*],stat=info)
|
|
if (info == 0) allocate(clear[*],stat=info)
|
|
if (info /= 0) then
|
|
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='Coarray events allocation')
|
|
goto 9999
|
|
end if
|
|
else
|
|
|
|
if (last_clear_count>0) &
|
|
& event wait(clear,until_count=last_clear_count)
|
|
end if
|
|
|
|
if (psb_size(buffer) < xchg%max_buffer_size) then
|
|
!
|
|
! By construction, max_buffer_size was computed with a collective.
|
|
!
|
|
if (allocated(buffer)) deallocate(buffer)
|
|
if (allocated(sndbuf)) deallocate(sndbuf)
|
|
!write(*,*) 'Allocating buffer',xchg%max_buffer_size
|
|
allocate(buffer(xchg%max_buffer_size)[*],stat=info)
|
|
if (info == 0) allocate(sndbuf(xchg%max_buffer_size),stat=info)
|
|
if (info /= 0) then
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='Coarray buffer allocation')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
|
|
if (.false.) then
|
|
nxch = size(xchg%prcs_xch)
|
|
myself = this_image()
|
|
do ip = 1, nxch
|
|
img = xchg%prcs_xch(ip) + 1
|
|
p1 = xchg%loc_snd_bnd(ip)
|
|
p2 = xchg%loc_snd_bnd(ip+1)-1
|
|
rp1 = xchg%rmt_rcv_bnd(ip,1)
|
|
rp2 = xchg%rmt_rcv_bnd(ip,2)
|
|
isz = p2-p1+1
|
|
!write(0,*) myself,'Posting for ',img,' boundaries: ',p1,p2
|
|
call psi_gth(isz,xchg%loc_snd_idx(p1:p2),y,buffer(p1:p2))
|
|
event post(ufg(myself)[img])
|
|
end do
|
|
|
|
do ip = 1, nxch
|
|
img = xchg%prcs_xch(ip) + 1
|
|
event wait(ufg(img))
|
|
img = xchg%prcs_xch(ip) + 1
|
|
p1 = xchg%loc_rcv_bnd(ip)
|
|
p2 = xchg%loc_rcv_bnd(ip+1)-1
|
|
isz = p2-p1+1
|
|
rp1 = xchg%rmt_snd_bnd(ip,1)
|
|
rp2 = xchg%rmt_snd_bnd(ip,2)
|
|
!write(0,*) myself,'Getting from ',img,'Remote boundaries: ',rp1,rp2
|
|
call psi_sct(isz,xchg%loc_rcv_idx(p1:p2),buffer(rp1:rp2)[img],beta,y)
|
|
event post(clear[img])
|
|
|
|
end do
|
|
last_clear_count = nxch
|
|
else
|
|
nxch = size(xchg%prcs_xch)
|
|
myself = this_image()
|
|
do ip = 1, nxch
|
|
img = xchg%prcs_xch(ip) + 1
|
|
p1 = xchg%loc_snd_bnd(ip)
|
|
p2 = xchg%loc_snd_bnd(ip+1)-1
|
|
rp1 = xchg%rmt_rcv_bnd(ip,1)
|
|
rp2 = xchg%rmt_rcv_bnd(ip,2)
|
|
isz = p2-p1+1
|
|
call psi_gth(isz,xchg%loc_snd_idx(p1:p2),&
|
|
& y,sndbuf(p1:p2))
|
|
buffer(rp1:rp2)[img] = sndbuf(p1:p2)
|
|
end do
|
|
!
|
|
! Doing event post later should provide more opportunities for
|
|
! overlap
|
|
!
|
|
do ip= 1, nxch
|
|
img = xchg%prcs_xch(ip) + 1
|
|
event post(ufg(myself)[img])
|
|
end do
|
|
|
|
do ip = 1, nxch
|
|
img = xchg%prcs_xch(ip) + 1
|
|
event wait(ufg(img))
|
|
img = xchg%prcs_xch(ip) + 1
|
|
p1 = xchg%loc_rcv_bnd(ip)
|
|
p2 = xchg%loc_rcv_bnd(ip+1)-1
|
|
isz = p2-p1+1
|
|
rp1 = xchg%rmt_snd_bnd(ip,1)
|
|
rp2 = xchg%rmt_snd_bnd(ip,2)
|
|
!write(0,*) myself,'Getting from ',img,' boundaries: ',p1,p2
|
|
call psi_sct(isz,xchg%loc_rcv_idx(p1:p2),&
|
|
& buffer(p1:p2),beta, y)
|
|
event post(clear[img])
|
|
end do
|
|
|
|
last_clear_count = nxch
|
|
endif
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ictxt,err_act)
|
|
|
|
return
|
|
end subroutine psi_dswap_xchg_v
|
|
|
|
!
|
|
!
|
|
! 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
|
|
use psb_d_base_vect_mod
|
|
use psb_error_mod
|
|
use psb_desc_mod
|
|
use psb_penv_mod
|
|
use psb_caf_mod
|
|
#ifdef MPI_MOD
|
|
use mpi
|
|
#endif
|
|
implicit none
|
|
#ifdef MPI_H
|
|
include 'mpif.h'
|
|
#endif
|
|
|
|
integer(psb_ipk_), intent(in) :: flag
|
|
integer(psb_ipk_), intent(out) :: info
|
|
class(psb_d_base_vect_type) :: y
|
|
real(psb_dpk_) :: beta
|
|
real(psb_dpk_), target :: work(:)
|
|
type(psb_desc_type), target :: desc_a
|
|
integer(psb_ipk_), optional :: data
|
|
|
|
! locals
|
|
integer(psb_ipk_) :: ictxt, np, me, icomm, data_, err_act
|
|
class(psb_xch_idx_type), pointer :: d_xchg
|
|
character(len=20) :: name
|
|
|
|
info=psb_success_
|
|
name='psi_swap_datav'
|
|
call psb_erractionsave(err_act)
|
|
|
|
|
|
if (.not.psb_is_asb_desc(desc_a)) then
|
|
info=psb_err_invalid_cd_state_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
if(present(data)) then
|
|
data_ = data
|
|
else
|
|
data_ = psb_comm_halo_
|
|
end if
|
|
|
|
|
|
print*,'************ calling get_list', this_image()
|
|
call desc_a%get_list(data_,d_xchg,info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_internal_error_,name,a_err='psb_cd_get_list')
|
|
goto 9999
|
|
end if
|
|
|
|
if (if_caf2) then
|
|
print*,'****************** prcs_xch', this_image(),d_xchg%prcs_xch(1)
|
|
call psi_swapdata(ictxt,icomm,flag,beta,y,d_xchg,info)
|
|
endif
|
|
|
|
if (info /= psb_success_) goto 9999
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ictxt,err_act)
|
|
|
|
return
|
|
end subroutine psi_dswapdata_vect
|
|
|
|
|
|
subroutine psi_dswap_xchg_vect(flag,beta,y,xchg,info)
|
|
use psi_mod, psb_protect_name => psi_dswap_xchg_vect
|
|
use psb_error_mod
|
|
use psb_realloc_mod
|
|
use psb_desc_mod
|
|
use psb_penv_mod
|
|
use psb_d_base_vect_mod
|
|
use iso_fortran_env
|
|
implicit none
|
|
integer(psb_ipk_), intent(in) :: flag
|
|
integer(psb_ipk_), intent(out) :: info
|
|
class(psb_d_base_vect_type) :: y
|
|
real(psb_dpk_) :: beta
|
|
class(psb_xch_idx_type), intent(inout) :: xchg
|
|
|
|
! locals
|
|
integer(psb_mpik_) :: np, me,&
|
|
& proc_to_comm, p2ptag, iret
|
|
integer(psb_ipk_) :: nesd, nerv,&
|
|
& err_act, i, idx_pt, totsnd_, totrcv_,p1,p2,isz,rp1,rp2,&
|
|
& snd_pt, rcv_pt, pnti, n, ip, img, nxch, myself
|
|
integer :: count
|
|
real(psb_dpk_), allocatable, save :: buffer(:)[:], sndbuf(:)
|
|
type(event_type), allocatable, save :: ufg(:)[:]
|
|
type(event_type), allocatable, save :: clear[:]
|
|
integer, save :: last_clear_count = 0
|
|
logical :: swap_mpi, swap_sync, swap_send, swap_recv,&
|
|
& albf,do_send,do_recv
|
|
integer(psb_ipk_) :: ierr(5)
|
|
character(len=20) :: name
|
|
|
|
info=psb_success_
|
|
name='psi_xchg_vect'
|
|
call psb_erractionsave(err_act)
|
|
|
|
np = num_images()
|
|
if (np == -1) then
|
|
info=psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
n=1
|
|
|
|
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
|
|
do_send = swap_mpi .or. swap_sync .or. swap_send
|
|
do_recv = swap_mpi .or. swap_sync .or. swap_recv
|
|
|
|
if (.not.(do_send.and.do_recv)) then
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='Unimplemented case in xchg_vect')
|
|
goto 9999
|
|
end if
|
|
|
|
if (.not.allocated(ufg)) then
|
|
!write(*,*) 'Allocating events',np
|
|
allocate(ufg(np)[*],stat=info)
|
|
if (info == 0) allocate(clear[*],stat=info)
|
|
if (info /= 0) then
|
|
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='Coarray events allocation')
|
|
goto 9999
|
|
end if
|
|
else
|
|
if (last_clear_count>0) &
|
|
& event wait(clear,until_count=last_clear_count)
|
|
end if
|
|
me = this_image()
|
|
if (psb_size(buffer) < xchg%max_buffer_size) then
|
|
!
|
|
! By construction, max_buffer_size was computed with a collective.
|
|
!
|
|
if (allocated(buffer)) deallocate(buffer)
|
|
!write(*,*) 'Allocating buffer',xchg%max_buffer_size
|
|
allocate(buffer(xchg%max_buffer_size)[*],stat=info)
|
|
if (allocated(sndbuf)) deallocate(sndbuf)
|
|
if (info == 0) allocate(sndbuf(xchg%max_buffer_size),stat=info)
|
|
if (info /= 0) then
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='Coarray buffer allocation')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
if (.false.) then
|
|
!sync all
|
|
nxch = size(xchg%prcs_xch)
|
|
myself = this_image()
|
|
do ip = 1, nxch
|
|
img = xchg%prcs_xch(ip) + 1
|
|
p1 = xchg%loc_snd_bnd(ip)
|
|
p2 = xchg%loc_snd_bnd(ip+1)-1
|
|
rp1 = xchg%rmt_rcv_bnd(ip,1)
|
|
rp2 = xchg%rmt_rcv_bnd(ip,2)
|
|
isz = p2-p1+1
|
|
!write(0,*) myself,'Posting for ',img,' boundaries: ',p1,p2
|
|
call y%gth(isz,xchg%loc_snd_idx(p1:p2),buffer(p1:p2))
|
|
event post(ufg(myself)[img])
|
|
end do
|
|
|
|
do ip = 1, nxch
|
|
img = xchg%prcs_xch(ip) + 1
|
|
event wait(ufg(img))
|
|
img = xchg%prcs_xch(ip) + 1
|
|
p1 = xchg%loc_rcv_bnd(ip)
|
|
p2 = xchg%loc_rcv_bnd(ip+1)-1
|
|
isz = p2-p1+1
|
|
rp1 = xchg%rmt_snd_bnd(ip,1)
|
|
rp2 = xchg%rmt_snd_bnd(ip,2)
|
|
!write(0,*) myself,'Getting from ',img,'Remote boundaries: ',rp1,rp2
|
|
call y%sct(isz,xchg%loc_rcv_idx(p1:p2),buffer(rp1:rp2)[img],beta)
|
|
event post(clear[img])
|
|
|
|
end do
|
|
last_clear_count = nxch
|
|
|
|
else
|
|
|
|
nxch = size(xchg%prcs_xch)
|
|
myself = this_image()
|
|
do ip = 1, nxch
|
|
print*,'----------------', allocated(xchg%prcs_xch)
|
|
print*,'----------------', size(xchg%prcs_xch,1)
|
|
print*,'----------------', xchg%prcs_xch(1:10)
|
|
img = xchg%prcs_xch(ip) + 1
|
|
p1 = xchg%loc_snd_bnd(ip)
|
|
p2 = xchg%loc_snd_bnd(ip+1)-1
|
|
rp1 = xchg%rmt_rcv_bnd(ip,1)
|
|
rp2 = xchg%rmt_rcv_bnd(ip,2)
|
|
isz = p2-p1+1
|
|
!write(0,*) myself,'Posting for ',img,' boundaries: ',rp1,rp2
|
|
if (.false.) then
|
|
call y%gth(isz,xchg%loc_snd_idx(p1:p2),buffer(rp1:rp2)[img])
|
|
else
|
|
call y%gth(isz,xchg%loc_snd_idx(p1:p2),sndbuf(p1:p2))
|
|
buffer(rp1:rp2)[img] = sndbuf(p1:p2)
|
|
end if
|
|
end do
|
|
!
|
|
! Doing event post later should provide more opportunities for
|
|
! overlap
|
|
!
|
|
do ip= 1, nxch
|
|
img = xchg%prcs_xch(ip) + 1
|
|
event post(ufg(myself)[img])
|
|
end do
|
|
|
|
do ip = 1, nxch
|
|
img = xchg%prcs_xch(ip) + 1
|
|
event wait(ufg(img))
|
|
img = xchg%prcs_xch(ip) + 1
|
|
p1 = xchg%loc_rcv_bnd(ip)
|
|
p2 = xchg%loc_rcv_bnd(ip+1)-1
|
|
isz = p2-p1+1
|
|
rp1 = xchg%rmt_snd_bnd(ip,1)
|
|
rp2 = xchg%rmt_snd_bnd(ip,2)
|
|
!write(0,*) myself,'Getting from ',img,' boundaries: ',p1,p2
|
|
call y%sct(isz,xchg%loc_rcv_idx(p1:p2),buffer(p1:p2),beta)
|
|
event post(clear[img])
|
|
end do
|
|
|
|
last_clear_count = nxch
|
|
|
|
end if
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ictxt,err_act)
|
|
|
|
return
|
|
|
|
end subroutine psi_dswap_xchg_vect
|
|
|
|
|
|
!
|
|
!
|
|
! Subroutine: psi_dswapdata_multivect
|
|
! Data exchange among processes.
|
|
!
|
|
! Takes care of Y an encaspulated vector.
|
|
!
|
|
!
|
|
subroutine psi_dswapdata_multivect(flag,beta,y,desc_a,work,info,data)
|
|
|
|
use psi_mod, psb_protect_name => psi_dswapdata_multivect
|
|
use psb_d_base_multivect_mod
|
|
use psb_error_mod
|
|
use psb_desc_mod
|
|
use psb_penv_mod
|
|
use psb_caf_mod
|
|
#ifdef MPI_MOD
|
|
use mpi
|
|
#endif
|
|
implicit none
|
|
#ifdef MPI_H
|
|
include 'mpif.h'
|
|
#endif
|
|
|
|
integer(psb_ipk_), intent(in) :: flag
|
|
integer(psb_ipk_), intent(out) :: info
|
|
class(psb_d_base_multivect_type) :: y
|
|
real(psb_dpk_) :: beta
|
|
real(psb_dpk_), target :: work(:)
|
|
type(psb_desc_type), target :: desc_a
|
|
integer(psb_ipk_), optional :: data
|
|
|
|
! locals
|
|
integer(psb_ipk_) :: ictxt, np, me, icomm, idxs, idxr, totxch, data_, err_act
|
|
class(psb_i_base_vect_type), pointer :: d_vidx
|
|
class(psb_xch_idx_type), pointer :: d_xchg
|
|
character(len=20) :: name
|
|
|
|
info=psb_success_
|
|
name='psi_swap_datav'
|
|
call psb_erractionsave(err_act)
|
|
|
|
ictxt = desc_a%get_context()
|
|
icomm = desc_a%get_mpic()
|
|
call psb_info(ictxt,me,np)
|
|
if (np == -1) then
|
|
info=psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
if (.not.psb_is_asb_desc(desc_a)) then
|
|
info=psb_err_invalid_cd_state_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
if(present(data)) then
|
|
data_ = data
|
|
else
|
|
data_ = psb_comm_halo_
|
|
end if
|
|
|
|
call desc_a%get_list(data_,d_vidx,totxch,idxr,idxs,info)
|
|
if (info == 0) call desc_a%get_list(data_,d_xchg,info)
|
|
if (info /= psb_success_) then
|
|
call psb_errpush(psb_err_internal_error_,name,a_err='psb_cd_get_list')
|
|
goto 9999
|
|
end if
|
|
|
|
if (if_caf2) then
|
|
call psi_swapdata(ictxt,icomm,flag,beta,y,d_xchg,info)
|
|
endif
|
|
!call psi_swapdata(ictxt,icomm,flag,beta,y,d_vidx,totxch,idxs,idxr,work,info)
|
|
if (info /= psb_success_) goto 9999
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ictxt,err_act)
|
|
|
|
return
|
|
end subroutine psi_dswapdata_multivect
|
|
|
|
|
|
|
|
subroutine psi_dswap_xchg_multivect(iictxt,iicomm,flag,beta,y,xchg,info)
|
|
use psi_mod, psb_protect_name => psi_dswap_xchg_multivect
|
|
use psb_error_mod
|
|
use psb_realloc_mod
|
|
use psb_desc_mod
|
|
use psb_penv_mod
|
|
use psb_d_base_multivect_mod
|
|
use iso_fortran_env
|
|
implicit none
|
|
integer(psb_ipk_), intent(in) :: iictxt,iicomm,flag
|
|
integer(psb_ipk_), intent(out) :: info
|
|
class(psb_d_base_multivect_type) :: y
|
|
real(psb_dpk_) :: beta
|
|
class(psb_xch_idx_type), intent(inout) :: xchg
|
|
|
|
! locals
|
|
integer(psb_mpik_) :: ictxt, icomm, np, me,&
|
|
& proc_to_comm, p2ptag, iret
|
|
integer(psb_ipk_) :: nesd, nerv,&
|
|
& err_act, i, idx_pt, totsnd_, totrcv_,p1,p2,isz,rp1,rp2,&
|
|
& snd_pt, rcv_pt, pnti, n, ip, img, nxch, myself
|
|
integer :: count
|
|
real(psb_dpk_), allocatable, save :: buffer(:)[:], sndbuf(:)
|
|
type(event_type), allocatable, save :: ufg(:)[:]
|
|
type(event_type), allocatable, save :: clear[:]
|
|
integer, save :: last_clear_count = 0
|
|
logical :: swap_mpi, swap_sync, swap_send, swap_recv,&
|
|
& albf,do_send,do_recv
|
|
integer(psb_ipk_) :: ierr(5)
|
|
character(len=20) :: name
|
|
|
|
info=psb_success_
|
|
name='psi_xchg_vect'
|
|
call psb_erractionsave(err_act)
|
|
ictxt = iictxt
|
|
icomm = iicomm
|
|
|
|
call psb_info(ictxt,me,np)
|
|
if (np == -1) then
|
|
info=psb_err_context_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
endif
|
|
|
|
if (np /= num_images()) then
|
|
write(*,*) 'Something is wrong MPI vs CAF ', np, num_images()
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='Num_images /= np')
|
|
goto 9999
|
|
end if
|
|
|
|
n=1
|
|
|
|
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
|
|
do_send = swap_mpi .or. swap_sync .or. swap_send
|
|
do_recv = swap_mpi .or. swap_sync .or. swap_recv
|
|
|
|
if (.not.(do_send.and.do_recv)) then
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='Unimplemented case in xchg_vect')
|
|
goto 9999
|
|
end if
|
|
|
|
if (.not.allocated(ufg)) then
|
|
!write(*,*) 'Allocating events',np
|
|
allocate(ufg(np)[*],stat=info)
|
|
if (info == 0) allocate(clear[*],stat=info)
|
|
if (info /= 0) then
|
|
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='Coarray events allocation')
|
|
goto 9999
|
|
end if
|
|
else
|
|
if (last_clear_count>0) &
|
|
& event wait(clear,until_count=last_clear_count)
|
|
end if
|
|
me = this_image()
|
|
if (psb_size(buffer) < xchg%max_buffer_size) then
|
|
!
|
|
! By construction, max_buffer_size was computed with a collective.
|
|
!
|
|
if (allocated(buffer)) deallocate(buffer)
|
|
!write(*,*) 'Allocating buffer',xchg%max_buffer_size
|
|
allocate(buffer(xchg%max_buffer_size)[*],stat=info)
|
|
if (allocated(sndbuf)) deallocate(sndbuf)
|
|
if (info == 0) allocate(sndbuf(xchg%max_buffer_size),stat=info)
|
|
if (info /= 0) then
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,a_err='Coarray buffer allocation')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
if (.false.) then
|
|
!sync all
|
|
nxch = size(xchg%prcs_xch)
|
|
myself = this_image()
|
|
do ip = 1, nxch
|
|
img = xchg%prcs_xch(ip) + 1
|
|
p1 = xchg%loc_snd_bnd(ip)
|
|
p2 = xchg%loc_snd_bnd(ip+1)-1
|
|
rp1 = xchg%rmt_rcv_bnd(ip,1)
|
|
rp2 = xchg%rmt_rcv_bnd(ip,2)
|
|
isz = p2-p1+1
|
|
!write(0,*) myself,'Posting for ',img,' boundaries: ',p1,p2
|
|
call y%gth(isz,xchg%loc_snd_idx(p1:p2),buffer(p1:p2))
|
|
event post(ufg(myself)[img])
|
|
end do
|
|
|
|
do ip = 1, nxch
|
|
img = xchg%prcs_xch(ip) + 1
|
|
event wait(ufg(img))
|
|
img = xchg%prcs_xch(ip) + 1
|
|
p1 = xchg%loc_rcv_bnd(ip)
|
|
p2 = xchg%loc_rcv_bnd(ip+1)-1
|
|
isz = p2-p1+1
|
|
rp1 = xchg%rmt_snd_bnd(ip,1)
|
|
rp2 = xchg%rmt_snd_bnd(ip,2)
|
|
!write(0,*) myself,'Getting from ',img,'Remote boundaries: ',rp1,rp2
|
|
call y%sct(isz,xchg%loc_rcv_idx(p1:p2),buffer(rp1:rp2)[img],beta)
|
|
event post(clear[img])
|
|
|
|
end do
|
|
last_clear_count = nxch
|
|
|
|
else
|
|
|
|
nxch = size(xchg%prcs_xch)
|
|
myself = this_image()
|
|
do ip = 1, nxch
|
|
img = xchg%prcs_xch(ip) + 1
|
|
p1 = xchg%loc_snd_bnd(ip)
|
|
p2 = xchg%loc_snd_bnd(ip+1)-1
|
|
rp1 = xchg%rmt_rcv_bnd(ip,1)
|
|
rp2 = xchg%rmt_rcv_bnd(ip,2)
|
|
isz = p2-p1+1
|
|
!write(0,*) myself,'Posting for ',img,' boundaries: ',rp1,rp2
|
|
if (.false.) then
|
|
call y%gth(isz,xchg%loc_snd_idx(p1:p2),buffer(rp1:rp2)[img])
|
|
else
|
|
call y%gth(isz,xchg%loc_snd_idx(p1:p2),sndbuf(p1:p2))
|
|
buffer(rp1:rp2)[img] = sndbuf(p1:p2)
|
|
end if
|
|
end do
|
|
!
|
|
! Doing event post later should provide more opportunities for
|
|
! overlap
|
|
!
|
|
do ip= 1, nxch
|
|
img = xchg%prcs_xch(ip) + 1
|
|
event post(ufg(myself)[img])
|
|
end do
|
|
|
|
do ip = 1, nxch
|
|
img = xchg%prcs_xch(ip) + 1
|
|
event wait(ufg(img))
|
|
img = xchg%prcs_xch(ip) + 1
|
|
p1 = xchg%loc_rcv_bnd(ip)
|
|
p2 = xchg%loc_rcv_bnd(ip+1)-1
|
|
isz = p2-p1+1
|
|
rp1 = xchg%rmt_snd_bnd(ip,1)
|
|
rp2 = xchg%rmt_snd_bnd(ip,2)
|
|
!write(0,*) myself,'Getting from ',img,' boundaries: ',p1,p2
|
|
call y%sct(isz,xchg%loc_rcv_idx(p1:p2),buffer(p1:p2),beta)
|
|
event post(clear[img])
|
|
end do
|
|
|
|
last_clear_count = nxch
|
|
|
|
end if
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(ictxt,err_act)
|
|
|
|
return
|
|
|
|
end subroutine psi_dswap_xchg_multivect
|
|
|