!!$ !!$ Parallel Sparse BLAS v2.0 !!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata !!$ Alfredo Buttari University of Rome Tor Vergata !!$ !!$ 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. !!$ !!$ subroutine psi_dswaptranm(flag,n,beta,y,desc_a,work,info,data) use psb_error_mod use psb_descriptor_type use mpi implicit none integer, intent(in) :: flag, n integer, intent(out) :: info real(kind(1.d0)) :: y(:,:), beta real(kind(1.d0)), target :: work(:) type(psb_desc_type) :: desc_a integer, optional :: data ! locals integer :: icontxt, nprow, npcol, myrow,& & mycol, point_to_proc, nesd, nerv,& & proc_to_comm, p2ptag, icomm, p2pstat(mpi_status_size),& & idxs, idxr, iret, errlen, ifcomm, rank,& & err_act, totxch, ixrec, i, lw, idx_pt,& & snd_pt, rcv_pt integer, pointer, dimension(:) :: bsdidx, brvidx,& & sdsz, rvsz, prcid, ptp, rvhd, d_idx integer :: int_err(5) integer :: blacs_pnum, krecvid, ksendid logical :: swap_mpi, swap_sync, swap_send, swap_recv, all real(kind(1.d0)), pointer, dimension(:) :: sndbuf, rcvbuf character(len=20) :: name, ch_err interface psi_gth subroutine psi_dgthm(n,k,idx,x,y) integer :: n, k, idx(:) real(kind(1.d0)) :: x(:,:), y(:) end subroutine psi_dgthm subroutine psi_dgthv(n,idx,x,y) integer :: n, idx(:) real(kind(1.d0)) :: x(:), y(:) end subroutine psi_dgthv subroutine psi_igthm(n,k,idx,x,y) integer :: n, k, idx(:) integer :: x(:,:), y(:) end subroutine psi_igthm subroutine psi_igthv(n,idx,x,y) integer :: n, idx(:) integer :: x(:), y(:) end subroutine psi_igthv end interface interface psi_sct subroutine psi_dsctm(n,k,idx,x,beta,y) integer :: n, k, idx(:) real(kind(1.d0)) :: beta, x(:), y(:,:) end subroutine psi_dsctm subroutine psi_dsctv(n,idx,x,beta,y) integer :: n, idx(:) real(kind(1.d0)) :: beta, x(:), y(:) end subroutine psi_dsctv subroutine psi_isctm(n,k,idx,x,beta,y) integer :: n, k, idx(:) integer :: beta, x(:), y(:,:) end subroutine psi_isctm subroutine psi_isctv(n,idx,x,beta,y) integer :: n, idx(:) integer :: beta, x(:), y(:) end subroutine psi_isctv end interface info = 0 name='psi_dswaptranm' call psb_erractionsave(err_act) icontxt=desc_a%matrix_data(psb_ctxt_) call blacs_gridinfo(icontxt,nprow,npcol,myrow,mycol) if (nprow == -1) then info = 2010 call psb_errpush(info,name) goto 9999 else if (npcol /= 1) then info = 2030 int_err(1) = npcol call psb_errpush(info,name) goto 9999 endif call blacs_get(icontxt,10,icomm) allocate(sdsz(0:nprow-1), rvsz(0:nprow-1), bsdidx(0:nprow-1),& & brvidx(0:nprow-1), rvhd(0:nprow-1), prcid(0:nprow-1),& & ptp(0:nprow-1), stat=info) if(info.ne.0) then call psb_errpush(4000,name) goto 9999 end if swap_mpi = iand(flag,psb_swap_mpi_).ne.0 swap_sync = iand(flag,psb_swap_sync_).ne.0 swap_send = iand(flag,psb_swap_send_).ne.0 swap_recv = iand(flag,psb_swap_recv_).ne.0 if(present(data)) then if(data.eq.psb_comm_halo_) then d_idx => desc_a%halo_index else if(data.eq.psb_comm_ovr_) then d_idx => desc_a%ovrlap_index else d_idx => desc_a%halo_index end if else d_idx => desc_a%halo_index end if idxs = 0 idxr = 0 totxch = 0 point_to_proc = 1 rvhd(:) = mpi_request_null ! prepare info for communications proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm.ne.-1) if(proc_to_comm .ne. myrow) totxch = totxch+1 nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) prcid(proc_to_comm) = blacs_pnum(icontxt,proc_to_comm,mycol) ptp(proc_to_comm) = point_to_proc brvidx(proc_to_comm) = idxr rvsz(proc_to_comm) = n*nerv idxr = idxr+rvsz(proc_to_comm) bsdidx(proc_to_comm) = idxs sdsz(proc_to_comm) = n*nesd idxs = idxs+sdsz(proc_to_comm) point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do if((idxr+idxs).lt.size(work)) then sndbuf => work(1:idxs) rcvbuf => work(idxs+1:idxs+idxr) all=.false. else allocate(sndbuf(idxs),rcvbuf(idxr), stat=info) if(info.ne.0) then call psb_errpush(4000,name) goto 9999 end if all=.true. end if ! Case SWAP_MPI if(swap_mpi) then ! gather elements into sendbuffer for swapping point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) idx_pt = point_to_proc+psb_elem_recv_ rcv_pt = brvidx(proc_to_comm) call psi_gth(nerv,n,d_idx(idx_pt:idx_pt+nerv-1),& & y,rcvbuf(rcv_pt:rcv_pt+nerv*n-1)) point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do ! swap elements using mpi_alltoallv call mpi_alltoallv(rcvbuf,rvsz,brvidx,& & mpi_double_precision,sndbuf,sdsz,& & bsdidx,mpi_double_precision,icomm,iret) if(iret.ne.mpi_success) then int_err(1) = iret info=400 call psb_errpush(info,name,i_err=int_err) goto 9999 end if ! scatter elements from receivebuffer after swapping point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) idx_pt = point_to_proc+nerv+psb_elem_send_ snd_pt = bsdidx(proc_to_comm) call psi_sct(nesd,n,d_idx(idx_pt:idx_pt+nesd-1),& & sndbuf(snd_pt:snd_pt+n*nesd-1),beta,y) point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do else if (swap_sync) then point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) if (proc_to_comm .lt. myrow) then ! First I send idx_pt = point_to_proc+psb_elem_recv_ rcv_pt = brvidx(proc_to_comm) call psi_gth(nerv,n,d_idx(idx_pt:idx_pt+nerv-1),& & y,rcvbuf(rcv_pt:rcv_pt+nerv*n-1)) call dgesd2d(icontxt,nerv,n,rcvbuf(rcv_pt),nerv,proc_to_comm,0) ! Then I receive snd_pt = brvidx(proc_to_comm) call dgerv2d(icontxt,nesd,n,sndbuf(snd_pt),nesd,proc_to_comm,0) else if (proc_to_comm .gt. myrow) then ! First I receive snd_pt = bsdidx(proc_to_comm) call dgerv2d(icontxt,nesd,n,sndbuf(snd_pt),nesd,proc_to_comm,0) ! Then I send idx_pt = point_to_proc+psb_elem_recv_ rcv_pt = brvidx(proc_to_comm) call psi_gth(nerv,n,d_idx(idx_pt:idx_pt+nerv-1),& & y,rcvbuf(rcv_pt:rcv_pt+nerv*n-1)) call dgesd2d(icontxt,nerv,n,rcvbuf(rcv_pt),nerv,proc_to_comm,0) else if (proc_to_comm .eq. myrow) then ! I send to myself idx_pt = point_to_proc+psb_elem_recv_ rcv_pt = bsdidx(proc_to_comm) call psi_gth(nerv,n,d_idx(idx_pt:idx_pt+nerv-1),& & y,rcvbuf(rcv_pt:rcv_pt+nerv*n-1)) end if point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) if(proc_to_comm.ne.myrow) then idx_pt = point_to_proc+nerv+psb_elem_send_ snd_pt = bsdidx(proc_to_comm) call psi_sct(nesd,n,d_idx(idx_pt:idx_pt+nesd-1),& & sndbuf(snd_pt:snd_pt+n*nesd-1),beta,y) else idx_pt = point_to_proc+nerv+psb_elem_send_ rcv_pt = brvidx(proc_to_comm) call psi_sct(nesd,n,d_idx(idx_pt:idx_pt+nesd-1),& & rcvbuf(rcv_pt:rcv_pt+n*nerv-1),beta,y) end if point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do else if (swap_send .and. swap_recv) then ! First I post all the non blocking receives point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) if(proc_to_comm.ne.myrow) then p2ptag = krecvid(icontxt,proc_to_comm,myrow) snd_pt = brvidx(proc_to_comm) call mpi_irecv(sndbuf(rcv_pt),sdsz(proc_to_comm),& & mpi_double_precision,prcid(proc_to_comm),& & p2ptag, icomm,rvhd(proc_to_comm),iret) if(iret.ne.mpi_success) then int_err(1) = iret info=400 call psb_errpush(info,name,i_err=int_err) goto 9999 end if end if point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do ! Then I post all the blocking sends point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) idx_pt = point_to_proc+psb_elem_recv_ rcv_pt = brvidx(proc_to_comm) call psi_gth(nerv,n,d_idx(idx_pt:idx_pt+nerv-1),& & y,rcvbuf(rcv_pt:rcv_pt+nerv*n-1)) if(proc_to_comm .ne. myrow) then p2ptag=ksendid(icontxt,proc_to_comm,myrow) call mpi_send(rcvbuf(rcv_pt),rvsz(proc_to_comm),& & mpi_double_precision,prcid(proc_to_comm),& & p2ptag,icomm,iret) if(iret.ne.mpi_success) then int_err(1) = iret info=400 call psb_errpush(info,name,i_err=int_err) goto 9999 end if end if point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do if(.false.) then do i=1, totxch call mpi_waitany(nprow,rvhd,ixrec,p2pstat,iret) if(iret.ne.mpi_success) then int_err(1) = iret info=400 call psb_errpush(info,name,i_err=int_err) goto 9999 end if if (ixrec .ne. mpi_undefined) then ixrec=ixrec-1 ! mpi_waitany returns an 1 to nprow index point_to_proc = ptp(ixrec) proc_to_comm = d_idx(point_to_proc+psb_proc_id_) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) idx_pt = point_to_proc+nerv+psb_elem_send_ snd_pt = bsdidx(proc_to_comm) call psi_sct(nesd,n,d_idx(idx_pt:idx_pt+nesd-1),& & sndbuf(snd_pt:snd_pt+n*nesd-1),beta,y) else int_err(1) = ixrec info=400 call psb_errpush(info,name,i_err=int_err) goto 9999 end if end do point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) if(proc_to_comm .eq. myrow) then idx_pt = point_to_proc+nerv+psb_elem_send_ rcv_pt = brvidx(proc_to_comm) call psi_sct(nesd,n,d_idx(idx_pt:idx_pt+nesd-1),& & rcvbuf(rcv_pt:rcv_pt+n*nerv-1),beta,y) end if point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do else point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) if(proc_to_comm.ne.myrow) then call mpi_wait(rvhd(proc_to_comm),p2pstat,iret) if(iret.ne.mpi_success) then int_err(1) = iret info=400 call psb_errpush(info,name,i_err=int_err) goto 9999 end if idx_pt = point_to_proc+nerv+psb_elem_send_ snd_pt = bsdidx(proc_to_comm) call psi_sct(nesd,n,d_idx(idx_pt:idx_pt+nesd-1),& & sndbuf(snd_pt:snd_pt+n*nesd-1),beta,y) else idx_pt = point_to_proc+nerv+psb_elem_send_ rcv_pt = brvidx(proc_to_comm) call psi_sct(nesd,n,d_idx(idx_pt:idx_pt+nesd-1),& & rcvbuf(rcv_pt:rcv_pt+n*nerv-1),beta,y) end if point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do end if else if (swap_send) then point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) idx_pt = point_to_proc+psb_elem_recv_ rcv_pt = brvidx(proc_to_comm) call psi_gth(nerv,n,d_idx(idx_pt:idx_pt+nerv-1),& & y,rcvbuf(rcv_pt:rcv_pt+nerv*n-1)) call dgesd2d(icontxt,nerv,n,rcvbuf(rcv_pt),nerv,proc_to_comm,0) point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do else if (swap_recv) then point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) if(proc_to_comm.ne.myrow) then snd_pt = bsdidx(proc_to_comm) call dgerv2d(icontxt,nesd,n,sndbuf(snd_pt),nesd,proc_to_comm,0) idx_pt = point_to_proc+nerv+psb_elem_send_ call psi_sct(nesd,n,d_idx(idx_pt:idx_pt+nesd-1),& & sndbuf(snd_pt:snd_pt+n*nesd-1),beta,y) else idx_pt = point_to_proc+nerv+psb_elem_send_ rcv_pt = brvidx(proc_to_comm) call psi_sct(nesd,n,d_idx(idx_pt:idx_pt+nesd-1),& & rcvbuf(rcv_pt:rcv_pt+n*nerv-1),beta,y) end if point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do end if deallocate(sdsz,rvsz,bsdidx,& & brvidx,rvhd,prcid,& & ptp,stat=info) if(all) deallocate(sndbuf,rcvbuf,stat=info) if(info.ne.0) then call psb_errpush(4000,name) goto 9999 end if call psb_erractionrestore(err_act) return 9999 continue call psb_erractionrestore(err_act) if (err_act.eq.act_abort) then call psb_error(icontxt) return end if return end subroutine psi_dswaptranm !!$ !!$ Parallel Sparse BLAS v2.0 !!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata !!$ Alfredo Buttari University of Rome Tor Vergata !!$ !!$ 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. !!$ !!$ subroutine psi_dswaptranv(flag,beta,y,desc_a,work,info,data) use psb_error_mod use psb_descriptor_type use mpi implicit none integer, intent(in) :: flag integer, intent(out) :: info real(kind(1.d0)) :: y(:), beta real(kind(1.d0)), target :: work(:) type(psb_desc_type) :: desc_a integer, optional :: data ! locals integer :: icontxt, nprow, npcol, myrow,& & mycol, point_to_proc, nesd, nerv,& & proc_to_comm, p2ptag, icomm, p2pstat(mpi_status_size),& & idxs, idxr, iret, errlen, ifcomm, rank,& & err_act, totxch, ixrec, i, lw, idx_pt,& & snd_pt, rcv_pt, n integer, pointer, dimension(:) :: bsdidx, brvidx,& & sdsz, rvsz, prcid, ptp, rvhd, d_idx integer :: int_err(5) integer :: blacs_pnum, krecvid, ksendid logical :: swap_mpi, swap_sync, swap_send, swap_recv, all real(kind(1.d0)), pointer, dimension(:) :: sndbuf, rcvbuf character(len=20) :: name, ch_err interface psi_gth subroutine psi_dgthm(n,k,idx,x,y) integer :: n, k, idx(:) real(kind(1.d0)) :: x(:,:), y(:) end subroutine psi_dgthm subroutine psi_dgthv(n,idx,x,y) integer :: n, idx(:) real(kind(1.d0)) :: x(:), y(:) end subroutine psi_dgthv subroutine psi_igthm(n,k,idx,x,y) integer :: n, k, idx(:) integer :: x(:,:), y(:) end subroutine psi_igthm subroutine psi_igthv(n,idx,x,y) integer :: n, idx(:) integer :: x(:), y(:) end subroutine psi_igthv end interface interface psi_sct subroutine psi_dsctm(n,k,idx,x,beta,y) integer :: n, k, idx(:) real(kind(1.d0)) :: beta, x(:), y(:,:) end subroutine psi_dsctm subroutine psi_dsctv(n,idx,x,beta,y) integer :: n, idx(:) real(kind(1.d0)) :: beta, x(:), y(:) end subroutine psi_dsctv subroutine psi_isctm(n,k,idx,x,beta,y) integer :: n, k, idx(:) integer :: beta, x(:), y(:,:) end subroutine psi_isctm subroutine psi_isctv(n,idx,x,beta,y) integer :: n, idx(:) integer :: beta, x(:), y(:) end subroutine psi_isctv end interface info = 0 name='psi_dswaptranv' call psb_erractionsave(err_act) icontxt=desc_a%matrix_data(psb_ctxt_) call blacs_gridinfo(icontxt,nprow,npcol,myrow,mycol) if (nprow == -1) then info = 2010 call psb_errpush(info,name) goto 9999 else if (npcol /= 1) then info = 2030 int_err(1) = npcol call psb_errpush(info,name) goto 9999 endif call blacs_get(icontxt,10,icomm) allocate(sdsz(0:nprow-1), rvsz(0:nprow-1), bsdidx(0:nprow-1),& & brvidx(0:nprow-1), rvhd(0:nprow-1), prcid(0:nprow-1),& & ptp(0:nprow-1), stat=info) if(info.ne.0) then call psb_errpush(4000,name) goto 9999 end if swap_mpi = iand(flag,psb_swap_mpi_).ne.0 swap_sync = iand(flag,psb_swap_sync_).ne.0 swap_send = iand(flag,psb_swap_send_).ne.0 swap_recv = iand(flag,psb_swap_recv_).ne.0 if(present(data)) then if(data.eq.psb_comm_halo_) then d_idx => desc_a%halo_index else if(data.eq.psb_comm_ovr_) then d_idx => desc_a%ovrlap_index else d_idx => desc_a%halo_index end if else d_idx => desc_a%halo_index end if idxs = 0 idxr = 0 totxch = 0 point_to_proc = 1 rvhd(:) = mpi_request_null n=1 ! prepare info for communications proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm.ne.-1) if(proc_to_comm .ne. myrow) totxch = totxch+1 nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) prcid(proc_to_comm) = blacs_pnum(icontxt,proc_to_comm,mycol) ptp(proc_to_comm) = point_to_proc brvidx(proc_to_comm) = idxr rvsz(proc_to_comm) = nerv idxr = idxr+rvsz(proc_to_comm) bsdidx(proc_to_comm) = idxs sdsz(proc_to_comm) = nesd idxs = idxs+sdsz(proc_to_comm) point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do if((idxr+idxs).lt.size(work)) then sndbuf => work(1:idxs) rcvbuf => work(idxs+1:idxs+idxr) all=.false. else allocate(sndbuf(idxs),rcvbuf(idxr), stat=info) if(info.ne.0) then call psb_errpush(4000,name) goto 9999 end if all=.true. end if ! Case SWAP_MPI if(swap_mpi) then ! gather elements into sendbuffer for swapping point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) idx_pt = point_to_proc+psb_elem_recv_ rcv_pt = brvidx(proc_to_comm) call psi_gth(nerv,d_idx(idx_pt:idx_pt+nerv-1),& & y,rcvbuf(rcv_pt:rcv_pt+nerv-1)) point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do ! swap elements using mpi_alltoallv call mpi_alltoallv(rcvbuf,rvsz,brvidx,& & mpi_double_precision,sndbuf,sdsz,& & bsdidx,mpi_double_precision,icomm,iret) if(iret.ne.mpi_success) then int_err(1) = iret info=400 call psb_errpush(info,name,i_err=int_err) goto 9999 end if ! scatter elements from receivebuffer after swapping point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) idx_pt = point_to_proc+nerv+psb_elem_send_ snd_pt = bsdidx(proc_to_comm) call psi_sct(nesd,d_idx(idx_pt:idx_pt+nesd-1),& & sndbuf(snd_pt:snd_pt+nesd-1),beta,y) point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do else if (swap_sync) then point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) if (proc_to_comm .lt. myrow) then ! First I send idx_pt = point_to_proc+psb_elem_recv_ rcv_pt = brvidx(proc_to_comm) call psi_gth(nerv,d_idx(idx_pt:idx_pt+nerv-1),& & y,rcvbuf(rcv_pt:rcv_pt+nerv-1)) call dgesd2d(icontxt,nerv,1,rcvbuf(rcv_pt),nerv,proc_to_comm,0) ! Then I receive snd_pt = brvidx(proc_to_comm) call dgerv2d(icontxt,nesd,1,sndbuf(snd_pt),nesd,proc_to_comm,0) else if (proc_to_comm .gt. myrow) then ! First I receive snd_pt = bsdidx(proc_to_comm) call dgerv2d(icontxt,nesd,1,sndbuf(snd_pt),nesd,proc_to_comm,0) ! Then I send idx_pt = point_to_proc+psb_elem_recv_ rcv_pt = brvidx(proc_to_comm) call psi_gth(nerv,d_idx(idx_pt:idx_pt+nerv-1),& & y,rcvbuf(rcv_pt:rcv_pt+nerv-1)) call dgesd2d(icontxt,nerv,1,rcvbuf(rcv_pt),nerv,proc_to_comm,0) else if (proc_to_comm .eq. myrow) then ! I send to myself idx_pt = point_to_proc+psb_elem_recv_ rcv_pt = bsdidx(proc_to_comm) call psi_gth(nerv,d_idx(idx_pt:idx_pt+nerv-1),& & y,rcvbuf(rcv_pt:rcv_pt+nerv-1)) end if point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) if(proc_to_comm.ne.myrow) then idx_pt = point_to_proc+nerv+psb_elem_send_ snd_pt = bsdidx(proc_to_comm) call psi_sct(nesd,d_idx(idx_pt:idx_pt+nesd-1),& & sndbuf(snd_pt:snd_pt+nesd-1),beta,y) else idx_pt = point_to_proc+nerv+psb_elem_send_ rcv_pt = brvidx(proc_to_comm) call psi_sct(nesd,d_idx(idx_pt:idx_pt+nesd-1),& & rcvbuf(rcv_pt:rcv_pt+nerv-1),beta,y) end if point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do else if (swap_send .and. swap_recv) then ! First I post all the non blocking receives point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) if(proc_to_comm.ne.myrow) then p2ptag = krecvid(icontxt,proc_to_comm,myrow) snd_pt = brvidx(proc_to_comm) call mpi_irecv(sndbuf(snd_pt),sdsz(proc_to_comm),& & mpi_double_precision,prcid(proc_to_comm),& & p2ptag, icomm,rvhd(proc_to_comm),iret) if(iret.ne.mpi_success) then int_err(1) = iret info=400 call psb_errpush(info,name,i_err=int_err) goto 9999 end if end if point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do ! Then I post all the blocking sends point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) idx_pt = point_to_proc+psb_elem_recv_ rcv_pt = brvidx(proc_to_comm) call psi_gth(nerv,d_idx(idx_pt:idx_pt+nerv-1),& & y,rcvbuf(rcv_pt:rcv_pt+nerv-1)) if(proc_to_comm .ne. myrow) then p2ptag=ksendid(icontxt,proc_to_comm,myrow) call mpi_send(rcvbuf(rcv_pt),rvsz(proc_to_comm),& & mpi_double_precision,prcid(proc_to_comm),& & p2ptag,icomm,iret) if(iret.ne.mpi_success) then int_err(1) = iret info=400 call psb_errpush(info,name,i_err=int_err) goto 9999 end if end if point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do if(.false.) then do i=1, totxch call mpi_waitany(nprow,rvhd,ixrec,p2pstat,iret) if(iret.ne.mpi_success) then int_err(1) = iret info=400 call psb_errpush(info,name,i_err=int_err) goto 9999 end if if (ixrec .ne. mpi_undefined) then ixrec=ixrec-1 ! mpi_waitany returns an 1 to nprow index point_to_proc = ptp(ixrec) proc_to_comm = d_idx(point_to_proc+psb_proc_id_) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) idx_pt = point_to_proc+nerv+psb_elem_send_ rcv_pt = bsdidx(proc_to_comm) call psi_sct(nesd,d_idx(idx_pt:idx_pt+nesd-1),& & rcvbuf(rcv_pt:rcv_pt+nerv-1),beta,y) else int_err(1) = ixrec info=400 call psb_errpush(info,name,i_err=int_err) goto 9999 end if end do point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) if(proc_to_comm .eq. myrow) then idx_pt = point_to_proc+nerv+psb_elem_send_ rcv_pt = brvidx(proc_to_comm) call psi_sct(nesd,d_idx(idx_pt:idx_pt+nesd-1),& & rcvbuf(rcv_pt:rcv_pt+nerv-1),beta,y) end if point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do else point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) if(proc_to_comm.ne.myrow) then call mpi_wait(rvhd(proc_to_comm),p2pstat,iret) if(iret.ne.mpi_success) then int_err(1) = iret info=400 call psb_errpush(info,name,i_err=int_err) goto 9999 end if idx_pt = point_to_proc+nerv+psb_elem_send_ snd_pt = bsdidx(proc_to_comm) call psi_sct(nesd,d_idx(idx_pt:idx_pt+nesd-1),& & sndbuf(snd_pt:snd_pt+nesd-1),beta,y) else idx_pt = point_to_proc+nerv+psb_elem_send_ rcv_pt = brvidx(proc_to_comm) call psi_sct(nesd,d_idx(idx_pt:idx_pt+nesd-1),& & rcvbuf(rcv_pt:rcv_pt+nerv-1),beta,y) end if point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do end if else if (swap_send) then point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) idx_pt = point_to_proc+psb_elem_recv_ rcv_pt = brvidx(proc_to_comm) call psi_gth(nerv,d_idx(idx_pt:idx_pt+nerv-1),& & y,rcvbuf(rcv_pt:rcv_pt+nerv-1)) call dgesd2d(icontxt,nerv,1,rcvbuf(rcv_pt),nerv,proc_to_comm,0) point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do else if (swap_recv) then point_to_proc = 1 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) do while (proc_to_comm .ne. -1) nerv = d_idx(point_to_proc+psb_n_elem_recv_) nesd = d_idx(point_to_proc+nerv+psb_n_elem_send_) if(proc_to_comm.ne.myrow) then snd_pt = bsdidx(proc_to_comm) call dgerv2d(icontxt,nesd,1,sndbuf(snd_pt),nesd,proc_to_comm,0) idx_pt = point_to_proc+psb_elem_recv_ rcv_pt = brvidx(proc_to_comm) call psi_sct(nesd,d_idx(idx_pt:idx_pt+nesd-1),& & sndbuf(snd_pt:snd_pt+nesd-1),beta,y) else idx_pt = point_to_proc+nerv+psb_elem_send_ rcv_pt = brvidx(proc_to_comm) call psi_sct(nesd,d_idx(idx_pt:idx_pt+nesd-1),& & rcvbuf(rcv_pt:rcv_pt+nerv-1),beta,y) end if point_to_proc = point_to_proc+nerv+nesd+3 proc_to_comm = d_idx(point_to_proc+psb_proc_id_) end do end if deallocate(sdsz,rvsz,bsdidx,& & brvidx,rvhd,prcid,& & ptp,stat=info) if(all) deallocate(sndbuf,rcvbuf,stat=info) if(info.ne.0) then call psb_errpush(4000,name) goto 9999 end if call psb_erractionrestore(err_act) return 9999 continue call psb_erractionrestore(err_act) if (err_act.eq.act_abort) then call psb_error(icontxt) return end if return end subroutine psi_dswaptranv