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psblas3/base/internals/psi_iswapdata.F90

838 lines
22 KiB
Fortran

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