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499 lines
17 KiB
Fortran
499 lines
17 KiB
Fortran
!
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! Parallel Sparse BLAS version 3.5
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! (C) Copyright 2006-2018
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! Salvatore Filippone
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! Alfredo Buttari
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions
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! are met:
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! 1. Redistributions of source code must retain the above copyright
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! notice, this list of conditions and the following disclaimer.
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! 2. Redistributions in binary form must reproduce the above copyright
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! notice, this list of conditions, and the following disclaimer in the
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! documentation and/or other materials provided with the distribution.
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! 3. The name of the PSBLAS group or the names of its contributors may
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! not be used to endorse or promote products derived from this
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! software without specific written permission.
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!
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! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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! ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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! TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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! PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
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! BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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! POSSIBILITY OF SUCH DAMAGE.
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!
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!
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! File: psb_s_remote_mat.f90
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!
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! Subroutine:
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! This routine does the retrieval of remote matrix rows.
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! Retrieval is done through GETROW, therefore it should work
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! for any matrix format in A; as for the output, default is CSR.
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!
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! There is also a specialized version ls_CSR whose interface
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! is adapted for the needs of s_par_csr_spspmm.
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!
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! There are three possible exchange algorithms:
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! 1. Use MPI_Alltoallv
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! 2. Use psb_simple_a2av
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! 3. Use psb_simple_triad_a2av
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! Default choice is 3. The MPI variant has proved to be inefficient;
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! that is because it is not persistent, therefore you pay the initialization price
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! every time, and it is not optimized for a sparse communication pattern,
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! most MPI implementations assume that all communications are non-empty.
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! The PSB_SIMPLE variants reuse the same communicator, and go for a simplistic
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! sequence of sends/receive that is quite efficient for a sparse communication
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! pattern. To be refined/reviewed in the future to compare with neighbour
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! persistent collectives.
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!
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! Arguments:
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! a - type(psb_sspmat_type) The local part of input matrix A
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! desc_a - type(psb_desc_type). The communication descriptor.
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! blck - type(psb_sspmat_type) The local part of output matrix BLCK
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! info - integer. Return code
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! rowcnv - logical Should row/col indices be converted
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! colcnv - logical to/from global numbering when sent/received?
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! default is .TRUE.
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! rowscale - logical Should row/col indices on output be remapped
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! colscale - logical from MIN:MAX to 1:(MAX-MIN+1) ?
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! default is .FALSE.
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! (commmon use is ROWSCALE=.TRUE., COLSCALE=.FALSE.)
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! data - integer Which index list in desc_a should be used to retrieve
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! rows, default psb_comm_halo_
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! psb_comm_halo_ use halo_index
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! psb_comm_ext_ use ext_index
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! psb_comm_ovrl_ DISABLED for this routine.
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!
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Subroutine psb_ls_remote_mat(a,desc_a,b,info)
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use psb_base_mod, psb_protect_name => psb_ls_remote_mat
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#ifdef MPI_MOD
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use mpi
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#endif
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Implicit None
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#ifdef MPI_H
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include 'mpif.h'
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#endif
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Type(psb_ls_coo_sparse_mat),Intent(inout) :: a
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Type(psb_ls_coo_sparse_mat),Intent(inout) :: b
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Type(psb_desc_type), Intent(inout) :: desc_a
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integer(psb_ipk_), intent(out) :: info
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! ...local scalars....
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type(psb_ctxt_type) :: ctxt
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integer(psb_ipk_) :: np,me
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integer(psb_ipk_) :: counter, proc, i, n_el_send,n_el_recv, &
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& n_elem, j, ipx,mat_recv, idxs,idxr,&
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& data_,totxch,nxs, nxr, ncg
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integer(psb_lpk_) :: r, k, irmin, irmax, icmin, icmax, iszs, iszr, &
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& lidx, l1, lnr, lnc, lnnz, idx, ngtz, tot_elem
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integer(psb_lpk_) :: nz,nouth
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integer(psb_ipk_) :: nnp, nrcvs, nsnds
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integer(psb_mpk_) :: icomm, minfo
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integer(psb_mpk_), allocatable :: brvindx(:), &
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& rvsz(:), bsdindx(:),sdsz(:), sdsi(:), rvsi(:)
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integer(psb_lpk_), allocatable :: iasnd(:), jasnd(:)
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real(psb_spk_), allocatable :: valsnd(:)
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type(psb_ls_coo_sparse_mat), allocatable :: acoo
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class(psb_i_base_vect_type), pointer :: pdxv
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integer(psb_ipk_), allocatable :: ladj(:), ila(:), iprc(:)
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logical :: rowcnv_,colcnv_,rowscale_,colscale_
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character(len=5) :: outfmt_
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integer(psb_ipk_) :: debug_level, debug_unit, err_act
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character(len=20) :: name, ch_err
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info=psb_success_
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name='psb_s_remote_mat'
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call psb_erractionsave(err_act)
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if (psb_errstatus_fatal()) then
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info = psb_err_internal_error_ ; goto 9999
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end if
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debug_unit = psb_get_debug_unit()
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debug_level = psb_get_debug_level()
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ctxt = desc_a%get_context()
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icomm = desc_a%get_mpic()
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Call psb_info(ctxt, me, np)
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if (debug_level >= psb_debug_outer_) &
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& write(debug_unit,*) me,' ',trim(name),': Start'
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call b%free()
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Allocate(rvsz(np),sdsz(np),sdsi(np),rvsi(np),brvindx(np+1),&
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& bsdindx(np+1), acoo,stat=info)
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if (info /= psb_success_) then
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info=psb_err_alloc_dealloc_
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call psb_errpush(info,name)
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goto 9999
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end if
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nz = a%get_nzeros()
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allocate(ila(nz))
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!write(0,*) me,name,' size :',nz,size(ila)
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call desc_a%g2l(a%ia(1:nz),ila(1:nz),info,owned=.false.)
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nouth = count(ila(1:nz)<0)
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!write(0,*) me,name,' Count out of halo :',nouth
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call psb_max(ctxt,nouth)
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if ((nouth/=0).and.(me==0)) &
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& write(0,*) 'Warning: would require reinit of DESC_A'
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call psi_graph_fnd_owner(a%ia(1:nz),iprc,ladj,desc_a%indxmap,info)
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call psb_msort_unique(ladj,nnp)
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!write(0,*) me,name,' Processes:',ladj(1:nnp)
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icomm = desc_a%get_mpic()
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sdsz(:)=0
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rvsz(:)=0
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sdsi(:)=0
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rvsi(:)=0
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ipx = 1
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brvindx(:) = 0
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bsdindx(:) = 0
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counter=1
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idx = 0
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idxs = 0
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idxr = 0
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do i=1,nz
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if (iprc(i) >=0) then
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sdsz(iprc(i)+1) = sdsz(iprc(i)+1) +1
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else
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write(0,*)me,name,' Error from fnd_owner: ',iprc(i)
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end if
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end do
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call mpi_alltoall(sdsz,1,psb_mpi_mpk_,&
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& rvsz,1,psb_mpi_mpk_,icomm,minfo)
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if (minfo /= psb_success_) then
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info=psb_err_from_subroutine_
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call psb_errpush(info,name,a_err='mpi_alltoall')
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goto 9999
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end if
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!write(0,*)me,name,' sdsz ',sdsz(:),' rvsz:',rvsz(:)
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nsnds = count(sdsz /= 0)
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nrcvs = count(rvsz /= 0)
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idxs = 0
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idxr = 0
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counter = 1
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Do proc=0,np-1
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bsdindx(proc+1) = idxs
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idxs = idxs + sdsz(proc+1)
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brvindx(proc+1) = idxr
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idxr = idxr + rvsz(proc+1)
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Enddo
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iszs = sum(sdsz)
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iszr = sum(rvsz)
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call acoo%allocate(desc_a%get_global_rows(),desc_a%get_global_cols(),iszr)
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if (psb_errstatus_fatal()) then
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write(0,*) 'Error from acoo%allocate '
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info = 4010
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goto 9999
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end if
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if (debug_level >= psb_debug_outer_)&
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& write(debug_unit,*) me,' ',trim(name),': Sizes:',acoo%get_size(),&
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& ' Send:',sdsz(:),' Receive:',rvsz(:)
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!write(debug_unit,*) me,' ',trim(name),': ',info
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if (info == psb_success_) call psb_ensure_size(max(iszs,1),iasnd,info)
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!write(debug_unit,*) me,' ',trim(name),' iasnd: ',info
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if (info == psb_success_) call psb_ensure_size(max(iszs,1),jasnd,info)
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!write(debug_unit,*) me,' ',trim(name),' jasnd: ',info
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if (info == psb_success_) call psb_ensure_size(max(iszs,1),valsnd,info)
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!write(debug_unit,*) me,' ',trim(name),' valsnd: ',info
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if (info /= psb_success_) then
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info=psb_err_from_subroutine_
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call psb_errpush(info,name,a_err='ensure_size')
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goto 9999
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end if
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do k=1, nz
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proc = iprc(k)
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sdsi(proc+1) = sdsi(proc+1) + 1
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!rvsi(proc) = rvsi(proc) + 1
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iasnd(bsdindx(proc+1)+sdsi(proc+1)) = a%ia(k)
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jasnd(bsdindx(proc+1)+sdsi(proc+1)) = a%ja(k)
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valsnd(bsdindx(proc+1)+sdsi(proc+1)) = a%val(k)
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end do
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do proc=0,np-1
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if (sdsi(proc+1) /= sdsz(proc+1)) &
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& write(0,*) me,name,'Send mismacth ',sdsi(proc+1),sdsz(proc+1)
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end do
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select case(psb_get_sp_a2av_alg())
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case(psb_sp_a2av_smpl_triad_)
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call psb_simple_triad_a2av(valsnd,iasnd,jasnd,sdsz,bsdindx,&
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& acoo%val,acoo%ia,acoo%ja,rvsz,brvindx,ctxt,info)
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case(psb_sp_a2av_smpl_v_)
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call psb_simple_a2av(valsnd,sdsz,bsdindx,&
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& acoo%val,rvsz,brvindx,ctxt,info)
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if (info == psb_success_) call psb_simple_a2av(iasnd,sdsz,bsdindx,&
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& acoo%ia,rvsz,brvindx,ctxt,info)
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if (info == psb_success_) call psb_simple_a2av(jasnd,sdsz,bsdindx,&
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& acoo%ja,rvsz,brvindx,ctxt,info)
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case(psb_sp_a2av_mpi_)
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call mpi_alltoallv(valsnd,sdsz,bsdindx,psb_mpi_r_spk_,&
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& acoo%val,rvsz,brvindx,psb_mpi_r_spk_,icomm,minfo)
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if (minfo == mpi_success) &
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& call mpi_alltoallv(iasnd,sdsz,bsdindx,psb_mpi_lpk_,&
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& acoo%ia,rvsz,brvindx,psb_mpi_lpk_,icomm,minfo)
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if (minfo == mpi_success) &
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& call mpi_alltoallv(jasnd,sdsz,bsdindx,psb_mpi_lpk_,&
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& acoo%ja,rvsz,brvindx,psb_mpi_lpk_,icomm,minfo)
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if (minfo /= mpi_success) info = minfo
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case default
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info = psb_err_internal_error_
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call psb_errpush(info,name,a_err='wrong A2AV alg selector')
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goto 9999
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end select
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if (info /= psb_success_) then
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info=psb_err_from_subroutine_
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call psb_errpush(info,name,a_err='alltoallv')
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goto 9999
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end if
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call acoo%set_nzeros(iszr)
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call acoo%mv_to_coo(b,info)
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Deallocate(brvindx,bsdindx,rvsz,sdsz,&
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& iasnd,jasnd,valsnd,stat=info)
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if (debug_level >= psb_debug_outer_)&
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& write(debug_unit,*) me,' ',trim(name),': Done'
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call psb_erractionrestore(err_act)
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return
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9999 call psb_error_handler(ctxt,err_act)
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return
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End Subroutine psb_ls_remote_mat
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subroutine psb_s_remote_vect(v,desc_a, info, dupl)
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use psb_base_mod, psb_protect_name => psb_s_remote_vect
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#ifdef MPI_MOD
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use mpi
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#endif
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Implicit None
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#ifdef MPI_H
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include 'mpif.h'
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#endif
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type(psb_s_vect_type),Intent(inout) :: v
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type(psb_desc_type),intent(in) :: desc_a
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_),optional, intent(in) :: dupl
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! ...local scalars....
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type(psb_ctxt_type) :: ctxt
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integer(psb_ipk_) :: np,me
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integer(psb_ipk_) :: counter, proc, i, n_el_send,n_el_recv, &
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& n_elem, j, ipx,mat_recv, idxs,idxr,&
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& data_,totxch,nxs, nxr, ncg, dupl_
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integer(psb_lpk_) :: r, k, irmin, irmax, icmin, icmax, iszs, iszr, &
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& lidx, l1, lnr, lnc, lnnz, idx, ngtz, tot_elem
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integer(psb_lpk_) :: nz,nouth
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integer(psb_ipk_) :: nnp, nrcvs, nsnds
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integer(psb_mpk_) :: icomm, minfo
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integer(psb_mpk_), allocatable :: brvindx(:), &
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& rvsz(:), bsdindx(:),sdsz(:), sdsi(:), rvsi(:)
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integer(psb_lpk_), allocatable :: iasnd(:), jasnd(:)
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real(psb_spk_), allocatable :: valsnd(:)
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integer(psb_ipk_), allocatable :: ladj(:), ila(:), iprc(:)
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logical :: rowcnv_,colcnv_,rowscale_,colscale_
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character(len=5) :: outfmt_
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integer(psb_ipk_) :: debug_level, debug_unit, err_act
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character(len=20) :: name, ch_err
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info=psb_success_
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name='psb_s_remote_vect'
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call psb_erractionsave(err_act)
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if (psb_errstatus_fatal()) then
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info = psb_err_internal_error_ ; goto 9999
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end if
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debug_unit = psb_get_debug_unit()
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debug_level = psb_get_debug_level()
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if (present(dupl)) then
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dupl_ = dupl
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else
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if (v%is_remote_build()) then
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dupl_ = psb_dupl_add_
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else
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dupl_ = psb_dupl_ovwrt_
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end if
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endif
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ctxt = desc_a%get_context()
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icomm = desc_a%get_mpic()
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Call psb_info(ctxt, me, np)
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if (debug_level >= psb_debug_outer_) &
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& write(debug_unit,*) me,' ',trim(name),': Start'
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write(0,*) me, 'X_remote_vect implementation to be completed '
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!!$ call b%free()
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!!$
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!!$ Allocate(rvsz(np),sdsz(np),sdsi(np),rvsi(np),brvindx(np+1),&
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!!$ & bsdindx(np+1), acoo,stat=info)
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!!$
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!!$ if (info /= psb_success_) then
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!!$ info=psb_err_alloc_dealloc_
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!!$ call psb_errpush(info,name)
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!!$ goto 9999
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!!$ end if
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!!$
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!!$
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!!$ nz = a%get_nzeros()
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!!$ allocate(ila(nz))
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!!$ !write(0,*) me,name,' size :',nz,size(ila)
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!!$ call desc_a%g2l(a%ia(1:nz),ila(1:nz),info,owned=.false.)
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!!$ nouth = count(ila(1:nz)<0)
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!!$ !write(0,*) me,name,' Count out of halo :',nouth
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!!$ call psb_max(ctxt,nouth)
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!!$ if ((nouth/=0).and.(me==0)) &
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!!$ & write(0,*) 'Warning: would require reinit of DESC_A'
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!!$
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!!$ call psi_graph_fnd_owner(a%ia(1:nz),iprc,ladj,desc_a%indxmap,info)
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!!$ call psb_msort_unique(ladj,nnp)
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!!$ !write(0,*) me,name,' Processes:',ladj(1:nnp)
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!!$
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!!$ icomm = desc_a%get_mpic()
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!!$ sdsz(:)=0
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!!$ rvsz(:)=0
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!!$ sdsi(:)=0
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!!$ rvsi(:)=0
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!!$ ipx = 1
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!!$ brvindx(:) = 0
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!!$ bsdindx(:) = 0
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!!$ counter=1
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!!$ idx = 0
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!!$ idxs = 0
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!!$ idxr = 0
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!!$ do i=1,nz
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!!$ if (iprc(i) >=0) then
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!!$ sdsz(iprc(i)+1) = sdsz(iprc(i)+1) +1
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!!$ else
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!!$ write(0,*)me,name,' Error from fnd_owner: ',iprc(i)
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!!$ end if
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!!$ end do
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!!$ call mpi_alltoall(sdsz,1,psb_mpi_mpk_,&
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!!$ & rvsz,1,psb_mpi_mpk_,icomm,minfo)
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!!$ if (minfo /= psb_success_) then
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!!$ info=psb_err_from_subroutine_
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!!$ call psb_errpush(info,name,a_err='mpi_alltoall')
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!!$ goto 9999
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!!$ end if
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!!$ !write(0,*)me,name,' sdsz ',sdsz(:),' rvsz:',rvsz(:)
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!!$ nsnds = count(sdsz /= 0)
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!!$ nrcvs = count(rvsz /= 0)
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!!$ idxs = 0
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!!$ idxr = 0
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!!$ counter = 1
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!!$ Do proc=0,np-1
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!!$ bsdindx(proc+1) = idxs
|
|
!!$ idxs = idxs + sdsz(proc+1)
|
|
!!$ brvindx(proc+1) = idxr
|
|
!!$ idxr = idxr + rvsz(proc+1)
|
|
!!$ Enddo
|
|
!!$
|
|
!!$ iszs = sum(sdsz)
|
|
!!$ iszr = sum(rvsz)
|
|
!!$ call acoo%allocate(desc_a%get_global_rows(),desc_a%get_global_cols(),iszr)
|
|
!!$ if (psb_errstatus_fatal()) then
|
|
!!$ write(0,*) 'Error from acoo%allocate '
|
|
!!$ info = 4010
|
|
!!$ goto 9999
|
|
!!$ end if
|
|
!!$ if (debug_level >= psb_debug_outer_)&
|
|
!!$ & write(debug_unit,*) me,' ',trim(name),': Sizes:',acoo%get_size(),&
|
|
!!$ & ' Send:',sdsz(:),' Receive:',rvsz(:)
|
|
!!$ !write(debug_unit,*) me,' ',trim(name),': ',info
|
|
!!$ if (info == psb_success_) call psb_ensure_size(max(iszs,1),iasnd,info)
|
|
!!$ !write(debug_unit,*) me,' ',trim(name),' iasnd: ',info
|
|
!!$ if (info == psb_success_) call psb_ensure_size(max(iszs,1),jasnd,info)
|
|
!!$ !write(debug_unit,*) me,' ',trim(name),' jasnd: ',info
|
|
!!$ if (info == psb_success_) call psb_ensure_size(max(iszs,1),valsnd,info)
|
|
!!$ !write(debug_unit,*) me,' ',trim(name),' 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
|
|
!!$ do k=1, nz
|
|
!!$ proc = iprc(k)
|
|
!!$ sdsi(proc+1) = sdsi(proc+1) + 1
|
|
!!$ !rvsi(proc) = rvsi(proc) + 1
|
|
!!$ iasnd(bsdindx(proc+1)+sdsi(proc+1)) = a%ia(k)
|
|
!!$ jasnd(bsdindx(proc+1)+sdsi(proc+1)) = a%ja(k)
|
|
!!$ valsnd(bsdindx(proc+1)+sdsi(proc+1)) = a%val(k)
|
|
!!$ end do
|
|
!!$ do proc=0,np-1
|
|
!!$ if (sdsi(proc+1) /= sdsz(proc+1)) &
|
|
!!$ & write(0,*) me,name,'Send mismacth ',sdsi(proc+1),sdsz(proc+1)
|
|
!!$ end do
|
|
!!$
|
|
!!$ 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,ctxt,info)
|
|
!!$ case(psb_sp_a2av_smpl_v_)
|
|
!!$ call psb_simple_a2av(valsnd,sdsz,bsdindx,&
|
|
!!$ & acoo%val,rvsz,brvindx,ctxt,info)
|
|
!!$ if (info == psb_success_) call psb_simple_a2av(iasnd,sdsz,bsdindx,&
|
|
!!$ & acoo%ia,rvsz,brvindx,ctxt,info)
|
|
!!$ if (info == psb_success_) call psb_simple_a2av(jasnd,sdsz,bsdindx,&
|
|
!!$ & acoo%ja,rvsz,brvindx,ctxt,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
|
|
!!$ call acoo%set_nzeros(iszr)
|
|
!!$ call acoo%mv_to_coo(b,info)
|
|
!!$
|
|
!!$ 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(ctxt,err_act)
|
|
|
|
return
|
|
|
|
End Subroutine psb_s_remote_vect
|
|
|
|
|