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838 lines
22 KiB
Fortran
838 lines
22 KiB
Fortran
!!$
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!!$ Parallel Sparse BLAS v2.0
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!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari University of Rome Tor Vergata
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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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subroutine psi_iswapdatam(flag,n,beta,y,desc_a,work,info,data)
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use psi_mod, psb_protect_name => psi_iswapdatam
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use psb_error_mod
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use psb_descriptor_type
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use psb_penv_mod
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use psi_gthsct_mod
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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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integer, intent(in) :: flag, n
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integer, intent(out) :: info
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integer :: y(:,:), beta
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integer, target :: work(:)
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type(psb_desc_type),target :: desc_a
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integer, optional :: data
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! locals
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integer :: ictxt, np, me, point_to_proc, nesd, nerv,&
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& proc_to_comm, p2ptag, icomm, p2pstat(mpi_status_size),&
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& idxs, idxr, iret, err_act, totxch, ixrec, i, idx_pt,&
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& snd_pt, rcv_pt, pnti, data_
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integer, allocatable, dimension(:) :: bsdidx, brvidx,&
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& sdsz, rvsz, prcid, rvhd, sdhd
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integer, pointer :: d_idx(:)
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integer :: int_err(5)
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logical :: swap_mpi, swap_sync, swap_send, swap_recv,&
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& albf,do_send,do_recv
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logical, parameter :: usersend=.false.
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integer, pointer, dimension(:) :: sndbuf, rcvbuf
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character(len=20) :: name
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info = 0
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name='psi_swap_data'
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call psb_erractionsave(err_act)
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ictxt=psb_cd_get_context(desc_a)
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call psb_info(ictxt,me,np)
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if (np == -1) then
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info = 2010
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call psb_errpush(info,name)
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goto 9999
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endif
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if (.not.psb_is_asb_desc(desc_a)) then
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info = 1122
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call psb_errpush(info,name)
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goto 9999
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endif
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icomm = desc_a%matrix_data(psb_mpi_c_)
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swap_mpi = iand(flag,psb_swap_mpi_) /= 0
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swap_sync = iand(flag,psb_swap_sync_) /= 0
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swap_send = iand(flag,psb_swap_send_) /= 0
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swap_recv = iand(flag,psb_swap_recv_) /= 0
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do_send = swap_mpi .or. swap_sync .or. swap_send
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do_recv = swap_mpi .or. swap_sync .or. swap_recv
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if(present(data)) then
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data_ = data
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else
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data_ = psb_comm_halo_
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end if
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select case(data_)
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case(psb_comm_halo_)
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d_idx => desc_a%halo_index
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totxch = desc_a%matrix_data(psb_thal_xch_)
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idxr = desc_a%matrix_data(psb_thal_rcv_)
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idxs = desc_a%matrix_data(psb_thal_snd_)
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case(psb_comm_ovr_)
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d_idx => desc_a%ovrlap_index
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totxch = desc_a%matrix_data(psb_tovr_xch_)
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idxr = desc_a%matrix_data(psb_tovr_rcv_)
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idxs = desc_a%matrix_data(psb_tovr_snd_)
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case(psb_comm_ext_)
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d_idx => desc_a%ext_index
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totxch = desc_a%matrix_data(psb_text_xch_)
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idxr = desc_a%matrix_data(psb_text_rcv_)
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idxs = desc_a%matrix_data(psb_text_snd_)
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case default
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call psb_errpush(4010,name,a_err='wrong Data selector')
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goto 9999
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end select
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idxr = idxr * n
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idxs = idxs * n
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if (swap_mpi) then
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allocate(sdsz(0:np-1), rvsz(0:np-1), bsdidx(0:np-1),&
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& brvidx(0:np-1), rvhd(0:np-1), sdhd(0:np-1), prcid(0:np-1),&
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& stat=info)
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if(info /= 0) then
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call psb_errpush(4000,name)
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goto 9999
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end if
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rvhd(:) = mpi_request_null
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sdsz(:) = 0
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rvsz(:) = 0
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! prepare info for communications
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pnti = 1
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snd_pt = 1
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rcv_pt = 1
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do i=1, totxch
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proc_to_comm = d_idx(pnti+psb_proc_id_)
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nerv = d_idx(pnti+psb_n_elem_recv_)
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nesd = d_idx(pnti+nerv+psb_n_elem_send_)
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call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
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brvidx(proc_to_comm) = rcv_pt
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rvsz(proc_to_comm) = n*nerv
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bsdidx(proc_to_comm) = snd_pt
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sdsz(proc_to_comm) = n*nesd
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rcv_pt = rcv_pt + n*nerv
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snd_pt = snd_pt + n*nesd
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pnti = pnti + nerv + nesd + 3
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end do
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else
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allocate(rvhd(totxch),prcid(totxch),stat=info)
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if(info /= 0) then
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call psb_errpush(4000,name)
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goto 9999
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end if
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end if
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idxr = max(idxr,1)
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idxs = max(idxs,1)
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if((idxr+idxs) < size(work)) then
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sndbuf => work(1:idxs)
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rcvbuf => work(idxs+1:idxs+idxr)
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albf=.false.
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else
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allocate(sndbuf(idxs),rcvbuf(idxr), stat=info)
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if(info /= 0) then
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call psb_errpush(4000,name)
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goto 9999
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end if
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albf=.true.
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end if
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if (do_send) then
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! Pack send buffers
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pnti = 1
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snd_pt = 1
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do i=1, totxch
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nerv = d_idx(pnti+psb_n_elem_recv_)
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nesd = d_idx(pnti+nerv+psb_n_elem_send_)
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idx_pt = 1+pnti+nerv+psb_n_elem_send_
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call psi_gth(nesd,n,d_idx(idx_pt:idx_pt+nesd-1),&
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& y,sndbuf(snd_pt:snd_pt+n*nesd-1))
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snd_pt = snd_pt + n*nesd
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pnti = pnti + nerv + nesd + 3
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end do
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end if
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! Case SWAP_MPI
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if (swap_mpi) then
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! swap elements using mpi_alltoallv
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call mpi_alltoallv(sndbuf,sdsz,bsdidx,&
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& mpi_integer,rcvbuf,rvsz,&
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& brvidx,mpi_integer,icomm,iret)
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if(iret /= mpi_success) then
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int_err(1) = iret
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info=400
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call psb_errpush(info,name,i_err=int_err)
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goto 9999
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end if
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else if (swap_sync) then
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pnti = 1
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snd_pt = 1
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rcv_pt = 1
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do i=1, totxch
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proc_to_comm = d_idx(pnti+psb_proc_id_)
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nerv = d_idx(pnti+psb_n_elem_recv_)
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nesd = d_idx(pnti+nerv+psb_n_elem_send_)
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if (proc_to_comm < me) then
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if (nesd>0) call psb_snd(ictxt,&
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& sndbuf(snd_pt:snd_pt+n*nesd-1), proc_to_comm)
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if (nerv>0) call psb_rcv(ictxt,&
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& rcvbuf(rcv_pt:rcv_pt+n*nerv-1), proc_to_comm)
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else if (proc_to_comm > me) then
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if (nerv>0) call psb_rcv(ictxt,&
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& rcvbuf(rcv_pt:rcv_pt+n*nerv-1), proc_to_comm)
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if (nesd>0) call psb_snd(ictxt,&
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& sndbuf(snd_pt:snd_pt+n*nesd-1), proc_to_comm)
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end if
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rcv_pt = rcv_pt + n*nerv
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snd_pt = snd_pt + n*nesd
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pnti = pnti + nerv + nesd + 3
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end do
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else if (swap_send .and. swap_recv) then
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! First I post all the non blocking receives
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pnti = 1
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snd_pt = 1
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rcv_pt = 1
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do i=1, totxch
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proc_to_comm = d_idx(pnti+psb_proc_id_)
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nerv = d_idx(pnti+psb_n_elem_recv_)
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nesd = d_idx(pnti+nerv+psb_n_elem_send_)
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call psb_get_rank(prcid(i),ictxt,proc_to_comm)
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if (nerv>0) then
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p2ptag = krecvid(ictxt,proc_to_comm,me)
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call mpi_irecv(rcvbuf(rcv_pt),n*nerv,&
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& mpi_integer,prcid(i),&
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& p2ptag, icomm,rvhd(i),iret)
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end if
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rcv_pt = rcv_pt + n*nerv
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snd_pt = snd_pt + n*nesd
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pnti = pnti + nerv + nesd + 3
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end do
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! Then I post all the blocking sends
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if (usersend) call mpi_barrier(icomm,info)
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pnti = 1
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snd_pt = 1
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rcv_pt = 1
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do i=1, totxch
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proc_to_comm = d_idx(pnti+psb_proc_id_)
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nerv = d_idx(pnti+psb_n_elem_recv_)
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nesd = d_idx(pnti+nerv+psb_n_elem_send_)
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p2ptag=ksendid(ictxt,proc_to_comm,me)
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if (nesd>0) then
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if (usersend) then
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call mpi_rsend(sndbuf(snd_pt),n*nesd,&
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& mpi_integer,prcid(i),&
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& p2ptag,icomm,iret)
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else
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call mpi_send(sndbuf(snd_pt),n*nesd,&
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& mpi_integer,prcid(i),&
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& p2ptag,icomm,iret)
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end if
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if(iret /= mpi_success) then
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int_err(1) = iret
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info=400
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call psb_errpush(info,name,i_err=int_err)
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goto 9999
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end if
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end if
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rcv_pt = rcv_pt + n*nerv
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snd_pt = snd_pt + n*nesd
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pnti = pnti + nerv + nesd + 3
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end do
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pnti = 1
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do i=1, totxch
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proc_to_comm = d_idx(pnti+psb_proc_id_)
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nerv = d_idx(pnti+psb_n_elem_recv_)
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nesd = d_idx(pnti+nerv+psb_n_elem_send_)
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p2ptag = krecvid(ictxt,proc_to_comm,me)
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if ((proc_to_comm /= me).and.(nerv>0)) then
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call mpi_wait(rvhd(i),p2pstat,iret)
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if(iret /= mpi_success) then
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int_err(1) = iret
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info=400
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call psb_errpush(info,name,i_err=int_err)
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goto 9999
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end if
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end if
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pnti = pnti + nerv + nesd + 3
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end do
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else if (swap_send) then
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pnti = 1
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snd_pt = 1
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rcv_pt = 1
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do i=1, totxch
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proc_to_comm = d_idx(pnti+psb_proc_id_)
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nerv = d_idx(pnti+psb_n_elem_recv_)
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nesd = d_idx(pnti+nerv+psb_n_elem_send_)
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if (nesd>0) call psb_snd(ictxt,&
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& sndbuf(snd_pt:snd_pt+n*nesd-1), proc_to_comm)
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rcv_pt = rcv_pt + n*nerv
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snd_pt = snd_pt + n*nesd
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pnti = pnti + nerv + nesd + 3
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end do
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else if (swap_recv) then
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pnti = 1
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snd_pt = 1
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rcv_pt = 1
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do i=1, totxch
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proc_to_comm = d_idx(pnti+psb_proc_id_)
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nerv = d_idx(pnti+psb_n_elem_recv_)
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nesd = d_idx(pnti+nerv+psb_n_elem_send_)
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if (nerv>0) call psb_rcv(ictxt,&
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& rcvbuf(rcv_pt:rcv_pt+n*nerv-1), proc_to_comm)
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rcv_pt = rcv_pt + n*nerv
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snd_pt = snd_pt + n*nesd
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pnti = pnti + nerv + nesd + 3
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end do
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end if
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if (do_recv) then
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pnti = 1
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snd_pt = 1
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rcv_pt = 1
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do i=1, totxch
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proc_to_comm = d_idx(pnti+psb_proc_id_)
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nerv = d_idx(pnti+psb_n_elem_recv_)
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nesd = d_idx(pnti+nerv+psb_n_elem_send_)
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idx_pt = 1+pnti+psb_n_elem_recv_
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call psi_sct(nerv,n,d_idx(idx_pt:idx_pt+nerv-1),&
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& rcvbuf(rcv_pt:rcv_pt+n*nerv-1),beta,y)
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rcv_pt = rcv_pt + n*nerv
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snd_pt = snd_pt + n*nesd
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pnti = pnti + nerv + nesd + 3
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end do
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end if
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if (swap_mpi) then
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deallocate(sdsz,rvsz,bsdidx,brvidx,rvhd,prcid,sdhd,&
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& stat=info)
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else
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deallocate(rvhd,prcid,stat=info)
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end if
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if(info /= 0) then
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call psb_errpush(4000,name)
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goto 9999
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end if
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if(albf) deallocate(sndbuf,rcvbuf,stat=info)
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if(info /= 0) then
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call psb_errpush(4000,name)
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goto 9999
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end if
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error(ictxt)
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return
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end if
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return
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end subroutine psi_iswapdatam
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!!$
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!!$ 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.
|
|
!!$
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!!$
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subroutine psi_iswapdatav(flag,beta,y,desc_a,work,info,data)
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use psi_mod, psb_protect_name => psi_iswapdatav
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use psb_error_mod
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use psb_descriptor_type
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use psb_penv_mod
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use psi_gthsct_mod
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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
|
|
|
|
integer, intent(in) :: flag
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|
integer, intent(out) :: info
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integer :: y(:), beta
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integer, target :: work(:)
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type(psb_desc_type),target :: desc_a
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integer, optional :: data
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! locals
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integer :: ictxt, np, me, point_to_proc, nesd, nerv,&
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& proc_to_comm, p2ptag, icomm, p2pstat(mpi_status_size),&
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& idxs, idxr, iret, err_act, totxch, ixrec, i, &
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& idx_pt, snd_pt, rcv_pt, n, pnti, data_
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integer, allocatable, dimension(:) :: bsdidx, brvidx,&
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& sdsz, rvsz, prcid, rvhd, sdhd
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integer, pointer :: d_idx(:)
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integer :: int_err(5)
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logical :: swap_mpi, swap_sync, swap_send, swap_recv,&
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& albf,do_send,do_recv
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logical, parameter :: usersend=.false.
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integer, pointer, dimension(:) :: sndbuf, rcvbuf
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character(len=20) :: name
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info = 0
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name='psi_swap_datav'
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call psb_erractionsave(err_act)
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ictxt=psb_cd_get_context(desc_a)
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call psb_info(ictxt,me,np)
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if (np == -1) then
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info = 2010
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call psb_errpush(info,name)
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goto 9999
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endif
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if (.not.psb_is_asb_desc(desc_a)) then
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info = 1122
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call psb_errpush(info,name)
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goto 9999
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endif
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icomm = desc_a%matrix_data(psb_mpi_c_)
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n=1
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swap_mpi = iand(flag,psb_swap_mpi_) /= 0
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swap_sync = iand(flag,psb_swap_sync_) /= 0
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swap_send = iand(flag,psb_swap_send_) /= 0
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swap_recv = iand(flag,psb_swap_recv_) /= 0
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do_send = swap_mpi .or. swap_sync .or. swap_send
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do_recv = swap_mpi .or. swap_sync .or. swap_recv
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if(present(data)) then
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data_ = data
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else
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data_ = psb_comm_halo_
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end if
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select case(data_)
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case(psb_comm_halo_)
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d_idx => desc_a%halo_index
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totxch = desc_a%matrix_data(psb_thal_xch_)
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idxr = desc_a%matrix_data(psb_thal_rcv_)
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idxs = desc_a%matrix_data(psb_thal_snd_)
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case(psb_comm_ovr_)
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d_idx => desc_a%ovrlap_index
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totxch = desc_a%matrix_data(psb_tovr_xch_)
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idxr = desc_a%matrix_data(psb_tovr_rcv_)
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idxs = desc_a%matrix_data(psb_tovr_snd_)
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case(psb_comm_ext_)
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d_idx => desc_a%ext_index
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totxch = desc_a%matrix_data(psb_text_xch_)
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idxr = desc_a%matrix_data(psb_text_rcv_)
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idxs = desc_a%matrix_data(psb_text_snd_)
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case default
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call psb_errpush(4010,name,a_err='wrong Data selector')
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goto 9999
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end select
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idxr = idxr * n
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idxs = idxs * n
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if (swap_mpi) then
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allocate(sdsz(0:np-1), rvsz(0:np-1), bsdidx(0:np-1),&
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& brvidx(0:np-1), rvhd(0:np-1), sdhd(0:np-1), prcid(0:np-1),&
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& stat=info)
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if(info /= 0) then
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call psb_errpush(4000,name)
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goto 9999
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end if
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rvhd(:) = mpi_request_null
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sdsz(:) = 0
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rvsz(:) = 0
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! prepare info for communications
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pnti = 1
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snd_pt = 1
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rcv_pt = 1
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do i=1, totxch
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proc_to_comm = d_idx(pnti+psb_proc_id_)
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nerv = d_idx(pnti+psb_n_elem_recv_)
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nesd = d_idx(pnti+nerv+psb_n_elem_send_)
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call psb_get_rank(prcid(proc_to_comm),ictxt,proc_to_comm)
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brvidx(proc_to_comm) = rcv_pt
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rvsz(proc_to_comm) = nerv
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bsdidx(proc_to_comm) = snd_pt
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sdsz(proc_to_comm) = nesd
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rcv_pt = rcv_pt + nerv
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snd_pt = snd_pt + nesd
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pnti = pnti + nerv + nesd + 3
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end do
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else
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allocate(rvhd(totxch),prcid(totxch),stat=info)
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if(info /= 0) then
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call psb_errpush(4000,name)
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goto 9999
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end if
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end if
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idxr = max(idxr,1)
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idxs = max(idxs,1)
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if((idxr+idxs) < size(work)) then
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sndbuf => work(1:idxs)
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rcvbuf => work(idxs+1:idxs+idxr)
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albf=.false.
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else
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allocate(sndbuf(idxs),rcvbuf(idxr), stat=info)
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if(info /= 0) then
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call psb_errpush(4000,name)
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goto 9999
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end if
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albf=.true.
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end if
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if (do_send) then
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! Pack send buffers
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pnti = 1
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snd_pt = 1
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do i=1, totxch
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nerv = d_idx(pnti+psb_n_elem_recv_)
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nesd = d_idx(pnti+nerv+psb_n_elem_send_)
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idx_pt = 1+pnti+nerv+psb_n_elem_send_
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call psi_gth(nesd,d_idx(idx_pt:idx_pt+nesd-1),&
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& y,sndbuf(snd_pt:snd_pt+nesd-1))
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snd_pt = snd_pt + nesd
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pnti = pnti + nerv + nesd + 3
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end do
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end if
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! Case SWAP_MPI
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if (swap_mpi) then
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! swap elements using mpi_alltoallv
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call mpi_alltoallv(sndbuf,sdsz,bsdidx,&
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& mpi_integer,rcvbuf,rvsz,&
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& brvidx,mpi_integer,icomm,iret)
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if(iret /= mpi_success) then
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int_err(1) = iret
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info=400
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call psb_errpush(info,name,i_err=int_err)
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goto 9999
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end if
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else if (swap_sync) then
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pnti = 1
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snd_pt = 1
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rcv_pt = 1
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do i=1, totxch
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proc_to_comm = d_idx(pnti+psb_proc_id_)
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nerv = d_idx(pnti+psb_n_elem_recv_)
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nesd = d_idx(pnti+nerv+psb_n_elem_send_)
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if (proc_to_comm < me) then
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if (nesd>0) call psb_snd(ictxt,&
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& sndbuf(snd_pt:snd_pt+nesd-1), proc_to_comm)
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if (nerv>0) call psb_rcv(ictxt,&
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& rcvbuf(rcv_pt:rcv_pt+nerv-1), proc_to_comm)
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else if (proc_to_comm > me) then
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if (nerv>0) call psb_rcv(ictxt,&
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& rcvbuf(rcv_pt:rcv_pt+nerv-1), proc_to_comm)
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if (nesd>0) call psb_snd(ictxt,&
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& sndbuf(snd_pt:snd_pt+nesd-1), proc_to_comm)
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end if
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rcv_pt = rcv_pt + nerv
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snd_pt = snd_pt + nesd
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pnti = pnti + nerv + nesd + 3
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end do
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else if (swap_send .and. swap_recv) then
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! First I post all the non blocking receives
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pnti = 1
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snd_pt = 1
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rcv_pt = 1
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do i=1, totxch
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proc_to_comm = d_idx(pnti+psb_proc_id_)
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nerv = d_idx(pnti+psb_n_elem_recv_)
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nesd = d_idx(pnti+nerv+psb_n_elem_send_)
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call psb_get_rank(prcid(i),ictxt,proc_to_comm)
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if (nerv>0) then
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p2ptag = krecvid(ictxt,proc_to_comm,me)
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call mpi_irecv(rcvbuf(rcv_pt),nerv,&
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& mpi_integer,prcid(i),&
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& p2ptag, icomm,rvhd(i),iret)
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end if
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rcv_pt = rcv_pt + nerv
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snd_pt = snd_pt + nesd
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pnti = pnti + nerv + nesd + 3
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end do
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! Then I post all the blocking sends
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if (usersend) call mpi_barrier(icomm,info)
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pnti = 1
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snd_pt = 1
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rcv_pt = 1
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do i=1, totxch
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proc_to_comm = d_idx(pnti+psb_proc_id_)
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nerv = d_idx(pnti+psb_n_elem_recv_)
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nesd = d_idx(pnti+nerv+psb_n_elem_send_)
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p2ptag=ksendid(ictxt,proc_to_comm,me)
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if (nesd>0) then
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if (usersend) then
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call mpi_rsend(sndbuf(snd_pt),nesd,&
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& mpi_integer,prcid(i),&
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& p2ptag,icomm,iret)
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else
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call mpi_send(sndbuf(snd_pt),nesd,&
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& mpi_integer,prcid(i),&
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& p2ptag,icomm,iret)
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end if
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if(iret /= mpi_success) then
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int_err(1) = iret
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info=400
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call psb_errpush(info,name,i_err=int_err)
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goto 9999
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end if
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end if
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rcv_pt = rcv_pt + nerv
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snd_pt = snd_pt + nesd
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pnti = pnti + nerv + nesd + 3
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end do
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pnti = 1
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do i=1, totxch
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proc_to_comm = d_idx(pnti+psb_proc_id_)
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nerv = d_idx(pnti+psb_n_elem_recv_)
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nesd = d_idx(pnti+nerv+psb_n_elem_send_)
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p2ptag = krecvid(ictxt,proc_to_comm,me)
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if ((proc_to_comm /= me).and.(nerv>0)) then
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call mpi_wait(rvhd(i),p2pstat,iret)
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if(iret /= mpi_success) then
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int_err(1) = iret
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info=400
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call psb_errpush(info,name,i_err=int_err)
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goto 9999
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end if
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end if
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pnti = pnti + nerv + nesd + 3
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end do
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else if (swap_send) then
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pnti = 1
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snd_pt = 1
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rcv_pt = 1
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do i=1, totxch
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proc_to_comm = d_idx(pnti+psb_proc_id_)
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nerv = d_idx(pnti+psb_n_elem_recv_)
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nesd = d_idx(pnti+nerv+psb_n_elem_send_)
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if (nesd>0) call psb_snd(ictxt,&
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& sndbuf(snd_pt:snd_pt+nesd-1), proc_to_comm)
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rcv_pt = rcv_pt + nerv
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snd_pt = snd_pt + nesd
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pnti = pnti + nerv + nesd + 3
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end do
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else if (swap_recv) then
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pnti = 1
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snd_pt = 1
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rcv_pt = 1
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do i=1, totxch
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proc_to_comm = d_idx(pnti+psb_proc_id_)
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nerv = d_idx(pnti+psb_n_elem_recv_)
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nesd = d_idx(pnti+nerv+psb_n_elem_send_)
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if (nerv>0) call psb_rcv(ictxt,&
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& rcvbuf(rcv_pt:rcv_pt+nerv-1), proc_to_comm)
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rcv_pt = rcv_pt + nerv
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snd_pt = snd_pt + nesd
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pnti = pnti + nerv + nesd + 3
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end do
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end if
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if (do_recv) then
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pnti = 1
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snd_pt = 1
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rcv_pt = 1
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do i=1, totxch
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proc_to_comm = d_idx(pnti+psb_proc_id_)
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nerv = d_idx(pnti+psb_n_elem_recv_)
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nesd = d_idx(pnti+nerv+psb_n_elem_send_)
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idx_pt = 1+pnti+psb_n_elem_recv_
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call psi_sct(nerv,d_idx(idx_pt:idx_pt+nerv-1),&
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& rcvbuf(rcv_pt:rcv_pt+nerv-1),beta,y)
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rcv_pt = rcv_pt + nerv
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snd_pt = snd_pt + nesd
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pnti = pnti + nerv + nesd + 3
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end do
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end if
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if (swap_mpi) then
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deallocate(sdsz,rvsz,bsdidx,brvidx,rvhd,prcid,sdhd,&
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& stat=info)
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else
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deallocate(rvhd,prcid,stat=info)
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end if
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if(info /= 0) then
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call psb_errpush(4000,name)
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goto 9999
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end if
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if(albf) deallocate(sndbuf,rcvbuf,stat=info)
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if(info /= 0) then
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call psb_errpush(4000,name)
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goto 9999
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end if
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error(ictxt)
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return
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end if
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return
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end subroutine psi_iswapdatav
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