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psblas3/base/tools/psb_ssphalo.F90

1614 lines
47 KiB
Fortran

!
! Parallel Sparse BLAS version 3.5
! (C) Copyright 2006-2018
! Salvatore Filippone
! Alfredo Buttari
!
! 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: psb_ssphalo.f90
!
! Subroutine: psb_ssphalo psb_lssphalo
! This routine does the retrieval of remote matrix rows.
! Retrieval is done through GETROW, therefore it should work
! for any matrix format in A; as for the output, default is CSR.
!
! There is also a specialized version ls_CSR whose interface
! is adapted for the needs of s_par_csr_spspmm.
!
! There are three possible exchange algorithms:
! 1. Use MPI_Alltoallv
! 2. Use psb_simple_a2av
! 3. Use psb_simple_triad_a2av
! Default choice is 3. The MPI variant has proved to be inefficient;
! that is because it is not persistent, therefore you pay the initialization price
! every time, and it is not optimized for a sparse communication pattern,
! most MPI implementations assume that all communications are non-empty.
! The PSB_SIMPLE variants reuse the same communicator, and go for a simplistic
! sequence of sends/receive that is quite efficient for a sparse communication
! pattern. To be refined/reviewed in the future to compare with neighbour
! persistent collectives.
!
! Arguments:
! a - type(psb_sspmat_type) The local part of input matrix A
! desc_a - type(psb_desc_type). The communication descriptor.
! blck - type(psb_sspmat_type) The local part of output matrix BLCK
! info - integer. Return code
! rowcnv - logical Should row/col indices be converted
! colcnv - logical to/from global numbering when sent/received?
! default is .TRUE.
! rowscale - logical Should row/col indices on output be remapped
! colscale - logical from MIN:MAX to 1:(MAX-MIN+1) ?
! default is .FALSE.
! (commmon use is ROWSCALE=.TRUE., COLSCALE=.FALSE.)
! 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_ DISABLED for this routine.
!
Subroutine psb_ssphalo(a,desc_a,blk,info,rowcnv,colcnv,&
& rowscale,colscale,outfmt,data)
use psb_base_mod, psb_protect_name => psb_ssphalo
#ifdef MPI_MOD
use mpi
#endif
Implicit None
#ifdef MPI_H
include 'mpif.h'
#endif
Type(psb_sspmat_type),Intent(in) :: a
Type(psb_sspmat_type),Intent(inout) :: blk
Type(psb_desc_type),Intent(in), target :: desc_a
integer(psb_ipk_), intent(out) :: info
logical, optional, intent(in) :: rowcnv,colcnv,rowscale,colscale
character(len=5), optional :: outfmt
integer(psb_ipk_), intent(in), optional :: data
! ...local scalars....
integer(psb_ipk_) :: ictxt, np,me
integer(psb_ipk_) :: counter,proc,i, &
& n_el_send,k,n_el_recv,idx, r, tot_elem,&
& n_elem, j, ipx,mat_recv, iszs, iszr,idxs,idxr,nz,&
& irmin,icmin,irmax,icmax,data_,ngtz,totxch,nxs, nxr,&
& l1, err_act, nsnds, nrcvs, lnr, lnc, lnnz
integer(psb_mpk_) :: icomm, minfo
integer(psb_mpk_), allocatable :: brvindx(:), &
& rvsz(:), bsdindx(:),sdsz(:)
#if defined(IPK4) && defined(LPK8)
! If globals are 8 bytes but locals are 4, things get tricky
integer(psb_ipk_), allocatable :: liasnd(:), ljasnd(:)
integer(psb_lpk_), allocatable :: iasnd(:), jasnd(:), iarcv(:), jarcv(:)
#else
integer(psb_ipk_), allocatable :: iasnd(:), jasnd(:)
#endif
real(psb_spk_), allocatable :: valsnd(:)
type(psb_s_coo_sparse_mat), allocatable :: acoo
integer(psb_ipk_), pointer :: idxv(:)
class(psb_i_base_vect_type), pointer :: pdxv
integer(psb_ipk_), allocatable :: ipdxv(:)
logical :: rowcnv_,colcnv_,rowscale_,colscale_
character(len=5) :: outfmt_
integer(psb_ipk_) :: debug_level, debug_unit
character(len=20) :: name, ch_err
info=psb_success_
name='psb_ssphalo'
call psb_erractionsave(err_act)
if (psb_errstatus_fatal()) then
info = psb_err_internal_error_ ; goto 9999
end if
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = desc_a%get_context()
icomm = desc_a%get_mpic()
Call psb_info(ictxt, me, np)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),': Start'
if (present(rowcnv)) then
rowcnv_ = rowcnv
else
rowcnv_ = .true.
endif
if (present(colcnv)) then
colcnv_ = colcnv
else
colcnv_ = .true.
endif
if (present(rowscale)) then
rowscale_ = rowscale
else
rowscale_ = .false.
endif
if (present(colscale)) then
colscale_ = colscale
else
colscale_ = .false.
endif
if (present(data)) then
data_ = data
else
data_ = psb_comm_halo_
endif
if (present(outfmt)) then
outfmt_ = psb_toupper(outfmt)
else
outfmt_ = 'CSR'
endif
Allocate(brvindx(np+1),&
& rvsz(np),sdsz(np),bsdindx(np+1), acoo,stat=info)
if (info /= psb_success_) then
info=psb_err_alloc_dealloc_
call psb_errpush(info,name)
goto 9999
end if
If (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),': Data selector',data_
select case(data_)
case(psb_comm_halo_,psb_comm_ext_ )
! Do not accept OVRLAP_INDEX any longer.
case default
call psb_errpush(psb_err_from_subroutine_,name,a_err='wrong Data selector')
goto 9999
end select
sdsz(:)=0
rvsz(:)=0
l1 = 0
ipx = 1
brvindx(ipx) = 0
bsdindx(ipx) = 0
counter=1
idx = 0
idxs = 0
idxr = 0
call desc_a%get_list(data_,pdxv,totxch,nxr,nxs,info)
ipdxv = pdxv%get_vect()
! For all rows in the halo descriptor, extract the row size
lnr = 0
Do
proc=ipdxv(counter)
if (proc == -1) exit
n_el_recv = ipdxv(counter+psb_n_elem_recv_)
counter = counter+n_el_recv
n_el_send = ipdxv(counter+psb_n_elem_send_)
tot_elem = 0
Do j=0,n_el_send-1
idx = ipdxv(counter+psb_elem_send_+j)
n_elem = a%get_nz_row(idx)
tot_elem = tot_elem+n_elem
Enddo
sdsz(proc+1) = tot_elem
lnr = lnr + n_el_recv
counter = counter+n_el_send+3
Enddo
!
! Exchange row sizes, so as to know sends/receives.
! This is different from the halo exchange because the
! size of the rows may vary, as opposed to fixed
! (multi) vector row size.
!
call mpi_alltoall(sdsz,1,psb_mpi_mpk_,&
& rvsz,1,psb_mpi_mpk_,icomm,minfo)
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='mpi_alltoall')
goto 9999
end if
nsnds = count(sdsz /= 0)
nrcvs = count(rvsz /= 0)
if (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),': Done initial alltoall',nsnds,nrcvs
idxs = 0
idxr = 0
counter = 1
Do
proc=ipdxv(counter)
if (proc == -1) exit
n_el_recv = ipdxv(counter+psb_n_elem_recv_)
counter = counter+n_el_recv
n_el_send = ipdxv(counter+psb_n_elem_send_)
bsdindx(proc+1) = idxs
idxs = idxs + sdsz(proc+1)
brvindx(proc+1) = idxr
idxr = idxr + rvsz(proc+1)
counter = counter+n_el_send+3
Enddo
iszr = sum(rvsz)
mat_recv = iszr
iszs = sum(sdsz)
lnnz = max(iszr,iszs,ione)
lnc = a%get_ncols()
call acoo%allocate(lnr,lnc,lnnz)
if (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),': Sizes:',acoo%get_size(),&
& ' Send:',sdsz(:),' Receive:',rvsz(:)
call psb_ensure_size(max(iszs,1),iasnd,info)
if (info == psb_success_) call psb_ensure_size(max(iszs,1),jasnd,info)
if (info == psb_success_) call psb_ensure_size(max(iszs,1),valsnd,info)
#if defined(IPK4) && defined(LPK8)
! If globals are 8 bytes but locals are not, things get tricky
if (info == psb_success_) call psb_ensure_size(max(iszs,1),liasnd,info)
if (info == psb_success_) call psb_ensure_size(max(iszs,1),ljasnd,info)
if (info == psb_success_) call psb_ensure_size(max(iszr,1),iarcv,info)
if (info == psb_success_) call psb_ensure_size(max(iszr,1),jarcv,info)
if (info /= psb_success_) then
info=psb_err_from_subroutine_; ch_err='psb_sp_reall'
call psb_errpush(info,name,a_err=ch_err); goto 9999
end if
l1 = 0
ipx = 1
counter=1
idx = 0
tot_elem=0
Do
proc=ipdxv(counter)
if (proc == -1) exit
n_el_recv=ipdxv(counter+psb_n_elem_recv_)
counter=counter+n_el_recv
n_el_send=ipdxv(counter+psb_n_elem_send_)
Do j=0,n_el_send-1
idx = ipdxv(counter+psb_elem_send_+j)
n_elem = a%get_nz_row(idx)
call a%csget(idx,idx,ngtz,liasnd,ljasnd,valsnd,info,&
& append=.true.,nzin=tot_elem)
if (info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='psb_sp_getrow'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
tot_elem=tot_elem+ngtz
Enddo
ipx = ipx + 1
counter = counter+n_el_send+3
Enddo
nz = tot_elem
if (rowcnv_) then
call psb_loc_to_glob(liasnd(1:nz),iasnd(1:nz),desc_a,info,iact='I')
else
iasnd(1:nz) = liasnd(1:nz)
end if
if (colcnv_) then
call psb_loc_to_glob(ljasnd(1:nz),jasnd(1:nz),desc_a,info,iact='I')
else
jasnd(1:nz) = ljasnd(1:nz)
end if
if (info /= psb_success_) then
info=psb_err_from_subroutine_; ch_err='psb_loc_to_glob'
call psb_errpush(info,name,a_err=ch_err); goto 9999
end if
select case(psb_get_sp_a2av_alg())
case(psb_sp_a2av_smpl_triad_)
call psb_simple_triad_a2av(valsnd,iasnd,jasnd,sdsz,bsdindx,&
& acoo%val,iarcv,jarcv,rvsz,brvindx,ictxt,info)
case(psb_sp_a2av_smpl_v_)
call psb_simple_a2av(valsnd,sdsz,bsdindx,&
& acoo%val,rvsz,brvindx,ictxt,info)
if (info == psb_success_) call psb_simple_a2av(iasnd,sdsz,bsdindx,&
& iarcv,rvsz,brvindx,ictxt,info)
if (info == psb_success_) call psb_simple_a2av(jasnd,sdsz,bsdindx,&
& jarcv,rvsz,brvindx,ictxt,info)
case(psb_sp_a2av_mpi_)
call mpi_alltoallv(valsnd,sdsz,bsdindx,psb_mpi_r_spk_,&
& acoo%val,rvsz,brvindx,psb_mpi_r_spk_,icomm,minfo)
if (minfo == mpi_success) &
& call mpi_alltoallv(iasnd,sdsz,bsdindx,psb_mpi_lpk_,&
& iarcv,rvsz,brvindx,psb_mpi_lpk_,icomm,minfo)
if (minfo == mpi_success) &
& call mpi_alltoallv(jasnd,sdsz,bsdindx,psb_mpi_lpk_,&
& jarcv,rvsz,brvindx,psb_mpi_lpk_,icomm,minfo)
if (minfo /= mpi_success) info = minfo
case default
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='wrong A2AV alg selector')
goto 9999
end select
if (info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='alltoallv'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
!
! Convert into local numbering
!
if (rowcnv_) then
call psb_glob_to_loc(iarcv(1:iszr),acoo%ia(1:iszr),desc_a,info,iact='I')
else
acoo%ia(1:iszr) = iarcv(1:iszr)
end if
if (colcnv_) then
call psb_glob_to_loc(jarcv(1:iszr),acoo%ja(1:iszr),desc_a,info,iact='I')
else
acoo%ja(1:iszr) = jarcv(1:iszr)
end if
#else
if (info /= psb_success_) then
info=psb_err_from_subroutine_; ch_err='psb_sp_reall'
call psb_errpush(info,name,a_err=ch_err); goto 9999
end if
l1 = 0
ipx = 1
counter=1
idx = 0
!
! Make sure to get all columns in csget.
! This is necessary when sphalo is used to compute a transpose,
! as opposed to just gathering halo for spspmm purposes.
!
tot_elem = 0
Do
proc = ipdxv(counter)
if (proc == -1) exit
n_el_recv = ipdxv(counter+psb_n_elem_recv_)
counter = counter+n_el_recv
n_el_send = ipdxv(counter+psb_n_elem_send_)
Do j=0,n_el_send-1
idx = ipdxv(counter+psb_elem_send_+j)
n_elem = a%get_nz_row(idx)
call a%csget(idx,idx,ngtz,iasnd,jasnd,valsnd,info,&
& append=.true.,nzin=tot_elem)
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='psb_sp_getrow')
goto 9999
end if
tot_elem = tot_elem+ngtz
Enddo
ipx = ipx + 1
counter = counter+n_el_send+3
Enddo
nz = tot_elem
if (rowcnv_) call psb_loc_to_glob(iasnd(1:nz),desc_a,info,iact='I')
if (colcnv_) call psb_loc_to_glob(jasnd(1:nz),desc_a,info,iact='I')
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='psb_loc_to_glob')
goto 9999
end if
select case(psb_get_sp_a2av_alg())
case(psb_sp_a2av_smpl_triad_)
call psb_simple_triad_a2av(valsnd,iasnd,jasnd,sdsz,bsdindx,&
& acoo%val,acoo%ia,acoo%ja,rvsz,brvindx,ictxt,info)
case(psb_sp_a2av_smpl_v_)
call psb_simple_a2av(valsnd,sdsz,bsdindx,&
& acoo%val,rvsz,brvindx,ictxt,info)
if (info == psb_success_) call psb_simple_a2av(iasnd,sdsz,bsdindx,&
& acoo%ia,rvsz,brvindx,ictxt,info)
if (info == psb_success_) call psb_simple_a2av(jasnd,sdsz,bsdindx,&
& acoo%ja,rvsz,brvindx,ictxt,info)
case(psb_sp_a2av_mpi_)
call mpi_alltoallv(valsnd,sdsz,bsdindx,psb_mpi_r_spk_,&
& acoo%val,rvsz,brvindx,psb_mpi_r_spk_,icomm,minfo)
if (minfo == mpi_success) &
& call mpi_alltoallv(iasnd,sdsz,bsdindx,psb_mpi_lpk_,&
& acoo%ia,rvsz,brvindx,psb_mpi_lpk_,icomm,minfo)
if (minfo == mpi_success) &
& call mpi_alltoallv(jasnd,sdsz,bsdindx,psb_mpi_lpk_,&
& acoo%ja,rvsz,brvindx,psb_mpi_lpk_,icomm,minfo)
if (minfo /= mpi_success) info = minfo
case default
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='wrong A2AV alg selector')
goto 9999
end select
if (info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='alltoallv'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
!
! Convert into local numbering
!
if (rowcnv_) call psb_glob_to_loc(acoo%ia(1:iszr),desc_a,info,iact='I')
if (colcnv_) call psb_glob_to_loc(acoo%ja(1:iszr),desc_a,info,iact='I')
#endif
if (info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='psbglob_to_loc'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
l1 = 0
call acoo%set_nrows(izero)
!
irmin = huge(irmin)
icmin = huge(icmin)
irmax = 0
icmax = 0
Do i=1,iszr
r=(acoo%ia(i))
k=(acoo%ja(i))
! Just in case some of the conversions were out-of-range
If ((r>0).and.(k>0)) Then
l1=l1+1
acoo%val(l1) = acoo%val(i)
acoo%ia(l1) = r
acoo%ja(l1) = k
irmin = min(irmin,r)
irmax = max(irmax,r)
icmin = min(icmin,k)
icmax = max(icmax,k)
End If
Enddo
if (rowscale_) then
call acoo%set_nrows(max(irmax-irmin+1,0))
acoo%ia(1:l1) = acoo%ia(1:l1) - irmin + 1
else
call acoo%set_nrows(irmax)
end if
if (colscale_) then
call acoo%set_ncols(max(icmax-icmin+1,0))
acoo%ja(1:l1) = acoo%ja(1:l1) - icmin + 1
else
call acoo%set_ncols(icmax)
end if
call acoo%set_nzeros(l1)
call acoo%set_sorted(.false.)
if (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),&
& ': End data exchange',counter,l1
call move_alloc(acoo,blk%a)
! Do we expect any duplicates to appear????
call blk%cscnv(info,type=outfmt_,dupl=psb_dupl_add_)
if (info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='psb_spcnv'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
Deallocate(brvindx,bsdindx,rvsz,sdsz,&
& iasnd,jasnd,valsnd,stat=info)
if (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),': Done'
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ictxt,err_act)
return
End Subroutine psb_ssphalo
Subroutine psb_lssphalo(a,desc_a,blk,info,rowcnv,colcnv,&
& rowscale,colscale,outfmt,data)
use psb_base_mod, psb_protect_name => psb_lssphalo
#ifdef MPI_MOD
use mpi
#endif
Implicit None
#ifdef MPI_H
include 'mpif.h'
#endif
Type(psb_lsspmat_type),Intent(in) :: a
Type(psb_lsspmat_type),Intent(inout) :: blk
Type(psb_desc_type),Intent(in), target :: desc_a
integer(psb_ipk_), intent(out) :: info
logical, optional, intent(in) :: rowcnv,colcnv,rowscale,colscale
character(len=5), optional :: outfmt
integer(psb_ipk_), intent(in), optional :: data
! ...local scalars....
integer(psb_ipk_) :: ictxt, np,me
integer(psb_ipk_) :: counter, proc, i, n_el_send,n_el_recv, &
& n_elem, j, ipx,mat_recv, idxs,idxr,nz,&
& data_,totxch,nxs, nxr, ncg
integer(psb_lpk_) :: r, k, irmin, irmax, icmin, icmax, iszs, iszr, &
& lidx, l1, lnr, lnc, lnnz, idx, ngtz, tot_elem
integer(psb_mpk_) :: icomm, minfo
integer(psb_mpk_), allocatable :: brvindx(:), &
& rvsz(:), bsdindx(:),sdsz(:)
integer(psb_lpk_), allocatable :: iasnd(:), jasnd(:)
real(psb_spk_), allocatable :: valsnd(:)
type(psb_ls_coo_sparse_mat), allocatable :: acoo
integer(psb_ipk_), pointer :: idxv(:)
class(psb_i_base_vect_type), pointer :: pdxv
integer(psb_ipk_), allocatable :: ipdxv(:)
logical :: rowcnv_,colcnv_,rowscale_,colscale_
character(len=5) :: outfmt_
integer(psb_ipk_) :: debug_level, debug_unit, err_act
character(len=20) :: name, ch_err
info=psb_success_
name='psb_ssphalo'
call psb_erractionsave(err_act)
if (psb_errstatus_fatal()) then
info = psb_err_internal_error_ ; goto 9999
end if
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = desc_a%get_context()
icomm = desc_a%get_mpic()
Call psb_info(ictxt, me, np)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),': Start'
if (present(rowcnv)) then
rowcnv_ = rowcnv
else
rowcnv_ = .true.
endif
if (present(colcnv)) then
colcnv_ = colcnv
else
colcnv_ = .true.
endif
if (present(rowscale)) then
rowscale_ = rowscale
else
rowscale_ = .false.
endif
if (present(colscale)) then
colscale_ = colscale
else
colscale_ = .false.
endif
if (present(data)) then
data_ = data
else
data_ = psb_comm_halo_
endif
if (present(outfmt)) then
outfmt_ = psb_toupper(outfmt)
else
outfmt_ = 'CSR'
endif
Allocate(brvindx(np+1),&
& rvsz(np),sdsz(np),bsdindx(np+1), acoo,stat=info)
if (info /= psb_success_) then
info=psb_err_alloc_dealloc_
call psb_errpush(info,name)
goto 9999
end if
If (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),': Data selector',data_
select case(data_)
case(psb_comm_halo_,psb_comm_ext_ )
! Do not accept OVRLAP_INDEX any longer.
case default
call psb_errpush(psb_err_from_subroutine_,name,a_err='wrong Data selector')
goto 9999
end select
sdsz(:)=0
rvsz(:)=0
l1 = 0
ipx = 1
brvindx(ipx) = 0
bsdindx(ipx) = 0
counter=1
idx = 0
idxs = 0
idxr = 0
call desc_a%get_list(data_,pdxv,totxch,nxr,nxs,info)
ipdxv = pdxv%get_vect()
! For all rows in the halo descriptor, extract and send/receive.
lnr = 0
Do
proc=ipdxv(counter)
if (proc == -1) exit
n_el_recv = ipdxv(counter+psb_n_elem_recv_)
counter = counter+n_el_recv
n_el_send = ipdxv(counter+psb_n_elem_send_)
tot_elem = 0
Do j=0,n_el_send-1
idx = ipdxv(counter+psb_elem_send_+j)
n_elem = a%get_nz_row(idx)
tot_elem = tot_elem+n_elem
Enddo
sdsz(proc+1) = tot_elem
lnr = lnr + n_el_recv
counter = counter+n_el_send+3
Enddo
!
! Exchange row sizes, so as to know sends/receives.
! This is different from the halo exchange because the
! size of the rows may vary, as opposed to fixed
! (multi) vector row size.
!
call mpi_alltoall(sdsz,1,psb_mpi_mpk_,&
& rvsz,1,psb_mpi_mpk_,icomm,minfo)
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='mpi_alltoall')
goto 9999
end if
idxs = 0
idxr = 0
counter = 1
Do
proc=ipdxv(counter)
if (proc == -1) exit
n_el_recv = ipdxv(counter+psb_n_elem_recv_)
counter = counter+n_el_recv
n_el_send = ipdxv(counter+psb_n_elem_send_)
bsdindx(proc+1) = idxs
idxs = idxs + sdsz(proc+1)
brvindx(proc+1) = idxr
idxr = idxr + rvsz(proc+1)
counter = counter+n_el_send+3
Enddo
iszr=sum(1_psb_lpk_*rvsz)
mat_recv = iszr
iszs=sum(1_psb_lpk_*sdsz)
lnnz = max(iszr,iszs,lone)
lnc = a%get_ncols()
call acoo%allocate(lnr,lnc,lnnz)
if (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),': Sizes:',acoo%get_size(),&
& ' Send:',sdsz(:),' Receive:',rvsz(:)
if (info == psb_success_) call psb_ensure_size(max(iszs,1),iasnd,info)
if (info == psb_success_) call psb_ensure_size(max(iszs,1),jasnd,info)
if (info == psb_success_) call psb_ensure_size(max(iszs,1),valsnd,info)
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='ensure_size')
goto 9999
end if
l1 = 0
ipx = 1
counter=1
idx = 0
ncg = huge(ncg)
tot_elem=0
Do
proc=ipdxv(counter)
if (proc == -1) exit
n_el_recv=ipdxv(counter+psb_n_elem_recv_)
counter=counter+n_el_recv
n_el_send=ipdxv(counter+psb_n_elem_send_)
Do j=0,n_el_send-1
idx = ipdxv(counter+psb_elem_send_+j)
n_elem = a%get_nz_row(idx)
call a%csget(idx,idx,ngtz,iasnd,jasnd,valsnd,info,&
& append=.true.,nzin=tot_elem)
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='psb_sp_getrow')
goto 9999
end if
tot_elem=tot_elem+n_elem
Enddo
ipx = ipx + 1
counter = counter+n_el_send+3
Enddo
nz = tot_elem
if (rowcnv_) call psb_loc_to_glob(iasnd(1:nz),desc_a,info,iact='I')
if (colcnv_) call psb_loc_to_glob(jasnd(1:nz),desc_a,info,iact='I')
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='psb_loc_to_glob')
goto 9999
end if
select case(psb_get_sp_a2av_alg())
case(psb_sp_a2av_smpl_triad_)
call psb_simple_triad_a2av(valsnd,iasnd,jasnd,sdsz,bsdindx,&
& acoo%val,acoo%ia,acoo%ja,rvsz,brvindx,ictxt,info)
case(psb_sp_a2av_smpl_v_)
call psb_simple_a2av(valsnd,sdsz,bsdindx,&
& acoo%val,rvsz,brvindx,ictxt,info)
if (info == psb_success_) call psb_simple_a2av(iasnd,sdsz,bsdindx,&
& acoo%ia,rvsz,brvindx,ictxt,info)
if (info == psb_success_) call psb_simple_a2av(jasnd,sdsz,bsdindx,&
& acoo%ja,rvsz,brvindx,ictxt,info)
case(psb_sp_a2av_mpi_)
call mpi_alltoallv(valsnd,sdsz,bsdindx,psb_mpi_r_spk_,&
& acoo%val,rvsz,brvindx,psb_mpi_r_spk_,icomm,minfo)
if (minfo == mpi_success) &
& call mpi_alltoallv(iasnd,sdsz,bsdindx,psb_mpi_lpk_,&
& acoo%ia,rvsz,brvindx,psb_mpi_lpk_,icomm,minfo)
if (minfo == mpi_success) &
& call mpi_alltoallv(jasnd,sdsz,bsdindx,psb_mpi_lpk_,&
& acoo%ja,rvsz,brvindx,psb_mpi_lpk_,icomm,minfo)
if (minfo /= mpi_success) info = minfo
case default
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='wrong A2AV alg selector')
goto 9999
end select
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='alltoallv')
goto 9999
end if
!
! Convert into local numbering
!
if (rowcnv_) call psb_glob_to_loc(acoo%ia(1:iszr),desc_a,info,iact='I')
if (colcnv_) call psb_glob_to_loc(acoo%ja(1:iszr),desc_a,info,iact='I')
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='psbglob_to_loc')
goto 9999
end if
l1 = 0
call acoo%set_nrows(lzero)
!
irmin = huge(irmin)
icmin = huge(icmin)
irmax = 0
icmax = 0
Do i=1,iszr
r=(acoo%ia(i))
k=(acoo%ja(i))
! Just in case some of the conversions were out-of-range
If ((r>0).and.(k>0)) Then
l1=l1+1
acoo%val(l1) = acoo%val(i)
acoo%ia(l1) = r
acoo%ja(l1) = k
irmin = min(irmin,r)
irmax = max(irmax,r)
icmin = min(icmin,k)
icmax = max(icmax,k)
End If
Enddo
if (rowscale_) then
call acoo%set_nrows(max(irmax-irmin+1,0))
acoo%ia(1:l1) = acoo%ia(1:l1) - irmin + 1
else
call acoo%set_nrows(irmax)
end if
if (colscale_) then
call acoo%set_ncols(max(icmax-icmin+1,0))
acoo%ja(1:l1) = acoo%ja(1:l1) - icmin + 1
else
call acoo%set_ncols(icmax)
end if
call acoo%set_nzeros(l1)
call acoo%set_sorted(.false.)
if (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),&
& ': End data exchange',counter,l1
call move_alloc(acoo,blk%a)
! Do we expect any duplicates to appear????
call blk%cscnv(info,type=outfmt_,dupl=psb_dupl_add_)
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='psb_spcnv')
goto 9999
end if
Deallocate(brvindx,bsdindx,rvsz,sdsz,&
& iasnd,jasnd,valsnd,stat=info)
if (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),': Done'
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ictxt,err_act)
return
End Subroutine psb_lssphalo
Subroutine psb_ls_csr_halo(a,desc_a,blk,info,rowcnv,colcnv,&
& rowscale,colscale,data,outcol_glob,col_desc)
use psb_base_mod, psb_protect_name => psb_ls_csr_halo
#ifdef MPI_MOD
use mpi
#endif
Implicit None
#ifdef MPI_H
include 'mpif.h'
#endif
type(psb_ls_csr_sparse_mat),Intent(in) :: a
type(psb_ls_csr_sparse_mat),Intent(inout) :: blk
type(psb_desc_type),intent(in), target :: desc_a
integer(psb_ipk_), intent(out) :: info
logical, optional, intent(in) :: rowcnv,colcnv,rowscale,colscale,outcol_glob
integer(psb_ipk_), intent(in), optional :: data
type(psb_desc_type),Intent(in), optional, target :: col_desc
! ...local scalars....
integer(psb_ipk_) :: ictxt, np,me
integer(psb_ipk_) :: counter,proc,i, n_el_send,n_el_recv,&
& n_elem, j,ipx,mat_recv, iszs, iszr,idxs,idxr,nz,&
& data_,totxch,nxs, nxr, err_act, nsnds, nrcvs
integer(psb_lpk_) :: ngtz,irmax,icmax,irmin,icmin,l1, lnr, lnc, lnnz, &
& r, k, ncg, jpx, idx, tot_elem
integer(psb_mpk_) :: icomm, minfo
integer(psb_mpk_), allocatable :: brvindx(:), &
& rvsz(:), bsdindx(:),sdsz(:)
integer(psb_lpk_), allocatable :: iasnd(:), jasnd(:)
real(psb_spk_), allocatable :: valsnd(:)
type(psb_ls_coo_sparse_mat), allocatable :: acoo
class(psb_i_base_vect_type), pointer :: pdxv
integer(psb_ipk_), allocatable :: ipdxv(:)
logical :: rowcnv_,colcnv_,rowscale_,colscale_,outcol_glob_
Type(psb_desc_type), pointer :: col_desc_
character(len=5) :: outfmt_
integer(psb_ipk_) :: debug_level, debug_unit
character(len=20) :: name, ch_err
if(psb_get_errstatus() /= 0) return
info=psb_success_
name='psb_ls_csr_sphalo'
call psb_erractionsave(err_act)
if (psb_errstatus_fatal()) then
info = psb_err_internal_error_ ; goto 9999
end if
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = desc_a%get_context()
icomm = desc_a%get_mpic()
Call psb_info(ictxt, me, np)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),': Start'
if (present(rowcnv)) then
rowcnv_ = rowcnv
else
rowcnv_ = .true.
endif
if (present(colcnv)) then
colcnv_ = colcnv
else
colcnv_ = .true.
endif
if (present(rowscale)) then
rowscale_ = rowscale
else
rowscale_ = .false.
endif
if (present(colscale)) then
colscale_ = colscale
else
colscale_ = .false.
endif
if (present(data)) then
data_ = data
else
data_ = psb_comm_halo_
endif
if (present(outcol_glob)) then
outcol_glob_ = outcol_glob
else
outcol_glob_ = .false.
endif
if (present(col_desc)) then
col_desc_ => col_desc
else
col_desc_ => desc_a
end if
Allocate(brvindx(np+1),&
& rvsz(np),sdsz(np),bsdindx(np+1), acoo,stat=info)
if (info /= psb_success_) then
info=psb_err_alloc_dealloc_
call psb_errpush(info,name)
goto 9999
end if
If (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),': Data selector',data_
select case(data_)
case(psb_comm_halo_,psb_comm_ext_ )
! Do not accept OVRLAP_INDEX any longer.
case default
call psb_errpush(psb_err_from_subroutine_,name,a_err='wrong Data selector')
goto 9999
end select
sdsz(:)=0
rvsz(:)=0
l1 = 0
brvindx(1) = 0
bsdindx(1) = 0
counter=1
idx = 0
idxs = 0
idxr = 0
call desc_a%get_list(data_,pdxv,totxch,nxr,nxs,info)
ipdxv = pdxv%get_vect()
! For all rows in the halo descriptor, extract the row size
lnr = 0
Do
proc=ipdxv(counter)
if (proc == -1) exit
n_el_recv = ipdxv(counter+psb_n_elem_recv_)
counter = counter+n_el_recv
n_el_send = ipdxv(counter+psb_n_elem_send_)
tot_elem = 0
Do j=0,n_el_send-1
idx = ipdxv(counter+psb_elem_send_+j)
n_elem = a%get_nz_row(idx)
tot_elem = tot_elem+n_elem
Enddo
sdsz(proc+1) = tot_elem
lnr = lnr + n_el_recv
counter = counter+n_el_send+3
Enddo
!
! Exchange row sizes, so as to know sends/receives.
! This is different from the halo exchange because the
! size of the rows may vary, as opposed to fixed
! (multi) vector row size.
!
call mpi_alltoall(sdsz,1,psb_mpi_mpk_,&
& rvsz,1,psb_mpi_mpk_,icomm,minfo)
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='mpi_alltoall')
goto 9999
end if
nsnds = count(sdsz /= 0)
nrcvs = count(rvsz /= 0)
if (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),': Done initial alltoall',nsnds,nrcvs
idxs = 0
idxr = 0
counter = 1
Do
proc=ipdxv(counter)
if (proc == -1) exit
n_el_recv = ipdxv(counter+psb_n_elem_recv_)
counter = counter+n_el_recv
n_el_send = ipdxv(counter+psb_n_elem_send_)
bsdindx(proc+1) = idxs
idxs = idxs + sdsz(proc+1)
brvindx(proc+1) = idxr
idxr = idxr + rvsz(proc+1)
counter = counter+n_el_send+3
Enddo
iszr = sum(rvsz)
mat_recv = iszr
iszs = sum(sdsz)
lnnz = max(iszr,iszs,ione)
lnc = a%get_ncols()
call acoo%allocate(lnr,lnc,lnnz)
if (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),': Sizes:',acoo%get_size(),&
& ' Send:',sdsz(:),' Receive:',rvsz(:)
call psb_ensure_size(max(iszs,1),iasnd,info)
if (info == psb_success_) call psb_ensure_size(max(iszs,1),jasnd,info)
if (info == psb_success_) call psb_ensure_size(max(iszs,1),valsnd,info)
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='ensure_size')
goto 9999
end if
l1 = 0
ipx = 1
counter=1
idx = 0
!
! Make sure to get all columns in csget.
! This is necessary when sphalo is used to compute a transpose,
! as opposed to just gathering halo for spspmm purposes.
!
ncg = huge(ncg)
tot_elem = 0
Do
proc = ipdxv(counter)
if (proc == -1) exit
n_el_recv = ipdxv(counter+psb_n_elem_recv_)
counter = counter+n_el_recv
n_el_send = ipdxv(counter+psb_n_elem_send_)
Do j=0,n_el_send-1
idx = ipdxv(counter+psb_elem_send_+j)
n_elem = a%get_nz_row(idx)
call a%csget(idx,idx,ngtz,iasnd,jasnd,valsnd,info,&
& append=.true.,nzin=tot_elem,jmax=ncg)
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='psb_sp_getrow')
goto 9999
end if
tot_elem = tot_elem+ngtz
Enddo
counter = counter+n_el_send+3
Enddo
nz = tot_elem
if (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),': Going for alltoallv',iszs,iszr
if (rowcnv_) call psb_loc_to_glob(iasnd(1:nz),desc_a,info,iact='I')
if (colcnv_) call psb_loc_to_glob(jasnd(1:nz),col_desc_,info,iact='I')
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='psb_loc_to_glob')
goto 9999
end if
select case(psb_get_sp_a2av_alg())
case(psb_sp_a2av_smpl_triad_)
call psb_simple_triad_a2av(valsnd,iasnd,jasnd,sdsz,bsdindx,&
& acoo%val,acoo%ia,acoo%ja,rvsz,brvindx,ictxt,info)
case(psb_sp_a2av_smpl_v_)
call psb_simple_a2av(valsnd,sdsz,bsdindx,&
& acoo%val,rvsz,brvindx,ictxt,info)
if (info == psb_success_) call psb_simple_a2av(iasnd,sdsz,bsdindx,&
& acoo%ia,rvsz,brvindx,ictxt,info)
if (info == psb_success_) call psb_simple_a2av(jasnd,sdsz,bsdindx,&
& acoo%ja,rvsz,brvindx,ictxt,info)
case(psb_sp_a2av_mpi_)
call mpi_alltoallv(valsnd,sdsz,bsdindx,psb_mpi_r_spk_,&
& acoo%val,rvsz,brvindx,psb_mpi_r_spk_,icomm,minfo)
if (minfo == mpi_success) &
& call mpi_alltoallv(iasnd,sdsz,bsdindx,psb_mpi_lpk_,&
& acoo%ia,rvsz,brvindx,psb_mpi_lpk_,icomm,minfo)
if (minfo == mpi_success) &
& call mpi_alltoallv(jasnd,sdsz,bsdindx,psb_mpi_lpk_,&
& acoo%ja,rvsz,brvindx,psb_mpi_lpk_,icomm,minfo)
if (minfo /= mpi_success) info = minfo
case default
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='wrong A2AV alg selector')
goto 9999
end select
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='alltoallv')
goto 9999
end if
if (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),': Done alltoallv'
!
! Convert into local numbering
!
if (rowcnv_) call psb_glob_to_loc(acoo%ia(1:iszr),desc_a,info,iact='I')
!
! This seems to be the correct output condition
!
if (colcnv_.and.(.not.outcol_glob_)) &
& call psb_glob_to_loc(acoo%ja(1:iszr),col_desc_,info,iact='I')
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='psbglob_to_loc')
goto 9999
end if
l1 = 0
call acoo%set_nrows(lzero)
!
irmin = huge(irmin)
icmin = huge(icmin)
irmax = 0
icmax = 0
Do i=1,iszr
r=(acoo%ia(i))
k=(acoo%ja(i))
! Just in case some of the conversions were out-of-range
If ((r>0).and.(k>0)) Then
l1=l1+1
acoo%val(l1) = acoo%val(i)
acoo%ia(l1) = r
acoo%ja(l1) = k
irmin = min(irmin,r)
irmax = max(irmax,r)
icmin = min(icmin,k)
icmax = max(icmax,k)
End If
Enddo
if (rowscale_) then
call acoo%set_nrows(max(irmax-irmin+1,0))
acoo%ia(1:l1) = acoo%ia(1:l1) - irmin + 1
else
call acoo%set_nrows(irmax)
end if
if (colscale_) then
call acoo%set_ncols(max(icmax-icmin+1,0))
acoo%ja(1:l1) = acoo%ja(1:l1) - icmin + 1
else
call acoo%set_ncols(icmax)
end if
call acoo%set_nzeros(l1)
call acoo%set_sorted(.false.)
if (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),&
& ': End data exchange',counter,l1
call acoo%fix(info)
if (info == psb_success_) call acoo%mv_to_fmt(blk,info)
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='psb_spcnv')
goto 9999
end if
Deallocate(brvindx,bsdindx,rvsz,sdsz,&
& iasnd,jasnd,valsnd,stat=info)
if (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),': Done'
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ictxt,err_act)
return
End Subroutine psb_ls_csr_halo
Subroutine psb_s_ls_csr_halo(a,desc_a,blk,info,rowcnv,colcnv,&
& rowscale,colscale,data,outcol_glob,col_desc)
use psb_base_mod, psb_protect_name => psb_s_ls_csr_halo
#ifdef MPI_MOD
use mpi
#endif
Implicit None
#ifdef MPI_H
include 'mpif.h'
#endif
type(psb_s_csr_sparse_mat),Intent(in) :: a
type(psb_ls_csr_sparse_mat),Intent(inout) :: blk
type(psb_desc_type),intent(in), target :: desc_a
integer(psb_ipk_), intent(out) :: info
logical, optional, intent(in) :: rowcnv,colcnv,rowscale,colscale,outcol_glob
integer(psb_ipk_), intent(in), optional :: data
type(psb_desc_type),Intent(in), optional, target :: col_desc
! ...local scalars....
integer(psb_ipk_) :: ictxt, np,me
integer(psb_ipk_) :: counter,proc,i, n_el_send,n_el_recv,&
& n_elem, j,ipx,mat_recv, iszs, iszr,idxs,idxr,nz,&
& data_,totxch,ngtz, idx, nxs, nxr, err_act, &
& nsnds, nrcvs, ncg, jpx, tot_elem
integer(psb_lpk_) :: irmax,icmax,irmin,icmin,l1, lnr, lnc, lnnz, &
& r, k
integer(psb_mpk_) :: icomm, minfo
integer(psb_mpk_), allocatable :: brvindx(:), &
& rvsz(:), bsdindx(:),sdsz(:)
integer(psb_ipk_), allocatable :: iasnd(:), jasnd(:)
integer(psb_lpk_), allocatable :: liasnd(:), ljasnd(:)
real(psb_spk_), allocatable :: valsnd(:)
type(psb_ls_coo_sparse_mat), allocatable :: acoo
class(psb_i_base_vect_type), pointer :: pdxv
integer(psb_ipk_), allocatable :: ipdxv(:)
logical :: rowcnv_,colcnv_,rowscale_,colscale_,outcol_glob_
Type(psb_desc_type), pointer :: col_desc_
character(len=5) :: outfmt_
integer(psb_ipk_) :: debug_level, debug_unit
character(len=20) :: name, ch_err
if(psb_get_errstatus() /= 0) return
info=psb_success_
name='psb_ls_csr_sphalo'
call psb_erractionsave(err_act)
if (psb_errstatus_fatal()) then
info = psb_err_internal_error_ ; goto 9999
end if
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = desc_a%get_context()
icomm = desc_a%get_mpic()
Call psb_info(ictxt, me, np)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),': Start'
if (present(rowcnv)) then
rowcnv_ = rowcnv
else
rowcnv_ = .true.
endif
if (present(colcnv)) then
colcnv_ = colcnv
else
colcnv_ = .true.
endif
if (present(rowscale)) then
rowscale_ = rowscale
else
rowscale_ = .false.
endif
if (present(colscale)) then
colscale_ = colscale
else
colscale_ = .false.
endif
if (present(data)) then
data_ = data
else
data_ = psb_comm_halo_
endif
if (present(outcol_glob)) then
outcol_glob_ = outcol_glob
else
outcol_glob_ = .false.
endif
if (present(col_desc)) then
col_desc_ => col_desc
else
col_desc_ => desc_a
end if
Allocate(brvindx(np+1),&
& rvsz(np),sdsz(np),bsdindx(np+1), acoo,stat=info)
if (info /= psb_success_) then
info=psb_err_alloc_dealloc_
call psb_errpush(info,name)
goto 9999
end if
If (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),': Data selector',data_
select case(data_)
case(psb_comm_halo_,psb_comm_ext_ )
! Do not accept OVRLAP_INDEX any longer.
case default
call psb_errpush(psb_err_from_subroutine_,name,a_err='wrong Data selector')
goto 9999
end select
sdsz(:)=0
rvsz(:)=0
l1 = 0
brvindx(1) = 0
bsdindx(1) = 0
counter=1
idx = 0
idxs = 0
idxr = 0
call desc_a%get_list(data_,pdxv,totxch,nxr,nxs,info)
ipdxv = pdxv%get_vect()
! For all rows in the halo descriptor, extract the row size
lnr = 0
Do
proc=ipdxv(counter)
if (proc == -1) exit
n_el_recv = ipdxv(counter+psb_n_elem_recv_)
counter = counter+n_el_recv
n_el_send = ipdxv(counter+psb_n_elem_send_)
tot_elem = 0
Do j=0,n_el_send-1
idx = ipdxv(counter+psb_elem_send_+j)
n_elem = a%get_nz_row(idx)
tot_elem = tot_elem+n_elem
Enddo
sdsz(proc+1) = tot_elem
lnr = lnr + n_el_recv
counter = counter+n_el_send+3
Enddo
!
! Exchange row sizes, so as to know sends/receives.
! This is different from the halo exchange because the
! size of the rows may vary, as opposed to fixed
! (multi) vector row size.
!
call mpi_alltoall(sdsz,1,psb_mpi_mpk_,&
& rvsz,1,psb_mpi_mpk_,icomm,minfo)
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='mpi_alltoall')
goto 9999
end if
nsnds = count(sdsz /= 0)
nrcvs = count(rvsz /= 0)
if (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),': Done initial alltoall',nsnds,nrcvs
idxs = 0
idxr = 0
counter = 1
Do
proc=ipdxv(counter)
if (proc == -1) exit
n_el_recv = ipdxv(counter+psb_n_elem_recv_)
counter = counter+n_el_recv
n_el_send = ipdxv(counter+psb_n_elem_send_)
bsdindx(proc+1) = idxs
idxs = idxs + sdsz(proc+1)
brvindx(proc+1) = idxr
idxr = idxr + rvsz(proc+1)
counter = counter+n_el_send+3
Enddo
iszr = sum(rvsz)
mat_recv = iszr
iszs = sum(sdsz)
lnnz = max(iszr,iszs,ione)
lnc = a%get_ncols()
call acoo%allocate(lnr,lnc,lnnz)
if (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),': Sizes:',acoo%get_size(),&
& ' Send:',sdsz(:),' Receive:',rvsz(:)
call psb_ensure_size(max(iszs,1),iasnd,info)
if (info == psb_success_) call psb_ensure_size(max(iszs,1),jasnd,info)
if (info == psb_success_) call psb_ensure_size(max(iszs,1),liasnd,info)
if (info == psb_success_) call psb_ensure_size(max(iszs,1),ljasnd,info)
if (info == psb_success_) call psb_ensure_size(max(iszs,1),valsnd,info)
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='ensure_size')
goto 9999
end if
l1 = 0
ipx = 1
counter=1
idx = 0
!
! Make sure to get all columns in csget.
! This is necessary when sphalo is used to compute a transpose,
! as opposed to just gathering halo for spspmm purposes.
!
ncg = huge(ncg)
tot_elem = 0
Do
proc = ipdxv(counter)
if (proc == -1) exit
n_el_recv = ipdxv(counter+psb_n_elem_recv_)
counter = counter+n_el_recv
n_el_send = ipdxv(counter+psb_n_elem_send_)
Do j=0,n_el_send-1
idx = ipdxv(counter+psb_elem_send_+j)
n_elem = a%get_nz_row(idx)
call a%csget(idx,idx,ngtz,iasnd,jasnd,valsnd,info,&
& append=.true.,nzin=tot_elem,jmax=ncg)
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='psb_sp_getrow')
goto 9999
end if
tot_elem = tot_elem+ngtz
Enddo
counter = counter+n_el_send+3
Enddo
nz = tot_elem
if (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),': Going for alltoallv',iszs,iszr
if (rowcnv_) then
call psb_loc_to_glob(iasnd(1:nz),liasnd(1:nz),desc_a,info,iact='I')
else
liasnd(1:nz) = iasnd(1:nz)
end if
if (colcnv_) then
call psb_loc_to_glob(jasnd(1:nz),ljasnd(1:nz),col_desc_,info,iact='I')
else
ljasnd(1:nz) = jasnd(1:nz)
end if
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='psb_loc_to_glob')
goto 9999
end if
select case(psb_get_sp_a2av_alg())
case(psb_sp_a2av_smpl_triad_)
call psb_simple_triad_a2av(valsnd,liasnd,ljasnd,sdsz,bsdindx,&
& acoo%val,acoo%ia,acoo%ja,rvsz,brvindx,ictxt,info)
case(psb_sp_a2av_smpl_v_)
call psb_simple_a2av(valsnd,sdsz,bsdindx,&
& acoo%val,rvsz,brvindx,ictxt,info)
if (info == psb_success_) call psb_simple_a2av(liasnd,sdsz,bsdindx,&
& acoo%ia,rvsz,brvindx,ictxt,info)
if (info == psb_success_) call psb_simple_a2av(ljasnd,sdsz,bsdindx,&
& acoo%ja,rvsz,brvindx,ictxt,info)
case(psb_sp_a2av_mpi_)
call mpi_alltoallv(valsnd,sdsz,bsdindx,psb_mpi_r_spk_,&
& acoo%val,rvsz,brvindx,psb_mpi_r_spk_,icomm,minfo)
if (minfo == mpi_success) &
& call mpi_alltoallv(liasnd,sdsz,bsdindx,psb_mpi_lpk_,&
& acoo%ia,rvsz,brvindx,psb_mpi_lpk_,icomm,minfo)
if (minfo == mpi_success) &
& call mpi_alltoallv(ljasnd,sdsz,bsdindx,psb_mpi_lpk_,&
& acoo%ja,rvsz,brvindx,psb_mpi_lpk_,icomm,minfo)
if (minfo /= mpi_success) info = minfo
case default
info = psb_err_internal_error_
call psb_errpush(info,name,a_err='wrong A2AV alg selector')
goto 9999
end select
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='alltoallv')
goto 9999
end if
if (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),': Done alltoallv'
!
! Convert into local numbering
!
if (rowcnv_) call psb_glob_to_loc(acoo%ia(1:iszr),desc_a,info,iact='I')
!
! This seems to be the correct output condition
!
if (colcnv_.and.(.not.outcol_glob_)) &
& call psb_glob_to_loc(acoo%ja(1:iszr),col_desc_,info,iact='I')
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='psbglob_to_loc')
goto 9999
end if
l1 = 0
call acoo%set_nrows(lzero)
!
irmin = huge(irmin)
icmin = huge(icmin)
irmax = 0
icmax = 0
Do i=1,iszr
r=(acoo%ia(i))
k=(acoo%ja(i))
! Just in case some of the conversions were out-of-range
If ((r>0).and.(k>0)) Then
l1=l1+1
acoo%val(l1) = acoo%val(i)
acoo%ia(l1) = r
acoo%ja(l1) = k
irmin = min(irmin,r)
irmax = max(irmax,r)
icmin = min(icmin,k)
icmax = max(icmax,k)
End If
Enddo
if (rowscale_) then
call acoo%set_nrows(max(irmax-irmin+1,0))
acoo%ia(1:l1) = acoo%ia(1:l1) - irmin + 1
else
call acoo%set_nrows(irmax)
end if
if (colscale_) then
call acoo%set_ncols(max(icmax-icmin+1,0))
acoo%ja(1:l1) = acoo%ja(1:l1) - icmin + 1
else
call acoo%set_ncols(icmax)
end if
call acoo%set_nzeros(l1)
call acoo%set_sorted(.false.)
if (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),&
& ': End data exchange',counter,l1
call acoo%fix(info)
if (info == psb_success_) call acoo%mv_to_fmt(blk,info)
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='psb_spcnv')
goto 9999
end if
Deallocate(brvindx,bsdindx,rvsz,sdsz,&
& iasnd,jasnd,valsnd,stat=info)
if (debug_level >= psb_debug_outer_)&
& write(debug_unit,*) me,' ',trim(name),': Done'
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ictxt,err_act)
return
End Subroutine psb_s_ls_csr_halo