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psblas3/base/modules/penv/psi_e_p2p_mod.F90

217 lines
6.2 KiB
Fortran

!
! Parallel Sparse BLAS version 3.5
! (C) Copyright 2006-2018
! Salvatore Filippone
! Alfredo Buttari
!
! Redistribution and use in source and binary forms, with or without
! modification, are permitted provided that the following conditions
! are met:
! 1. Redistributions of source code must retain the above copyright
! notice, this list of conditions and the following disclaimer.
! 2. Redistributions in binary form must reproduce the above copyright
! notice, this list of conditions, and the following disclaimer in the
! documentation and/or other materials provided with the distribution.
! 3. The name of the PSBLAS group or the names of its contributors may
! not be used to endorse or promote products derived from this
! software without specific written permission.
!
! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
! ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
! BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! POSSIBILITY OF SUCH DAMAGE.
!
!
module psi_e_p2p_mod
use psi_penv_mod
interface psb_snd
module procedure psb_esnds, psb_esndv, psb_esndm
end interface
interface psb_rcv
module procedure psb_ercvs, psb_ercvv, psb_ercvm
end interface
contains
subroutine psb_esnds(ctxt,dat,dst)
#ifdef MPI_MOD
use mpi
#endif
implicit none
#ifdef MPI_H
include 'mpif.h'
#endif
type(psb_ctxt_type), intent(in) :: ctxt
integer(psb_epk_), intent(in) :: dat
integer(psb_mpk_), intent(in) :: dst
integer(psb_epk_), allocatable :: dat_(:)
integer(psb_mpk_) :: info
#if defined(SERIAL_MPI)
! do nothing
#else
allocate(dat_(1), stat=info)
dat_(1) = dat
call psi_snd(ctxt,psb_int8_tag,dst,dat_,psb_mesg_queue)
#endif
end subroutine psb_esnds
subroutine psb_esndv(ctxt,dat,dst)
#ifdef MPI_MOD
use mpi
#endif
implicit none
#ifdef MPI_H
include 'mpif.h'
#endif
type(psb_ctxt_type), intent(in) :: ctxt
integer(psb_epk_), intent(in) :: dat(:)
integer(psb_mpk_), intent(in) :: dst
integer(psb_epk_), allocatable :: dat_(:)
integer(psb_mpk_) :: info
#if defined(SERIAL_MPI)
#else
allocate(dat_(size(dat)), stat=info)
dat_(:) = dat(:)
call psi_snd(ctxt,psb_int8_tag,dst,dat_,psb_mesg_queue)
#endif
end subroutine psb_esndv
subroutine psb_esndm(ctxt,dat,dst,m)
#ifdef MPI_MOD
use mpi
#endif
implicit none
#ifdef MPI_H
include 'mpif.h'
#endif
type(psb_ctxt_type), intent(in) :: ctxt
integer(psb_epk_), intent(in) :: dat(:,:)
integer(psb_mpk_), intent(in) :: dst
integer(psb_ipk_), intent(in), optional :: m
integer(psb_epk_), allocatable :: dat_(:)
integer(psb_ipk_) :: i,j,k,m_,n_
integer(psb_mpk_) :: info
#if defined(SERIAL_MPI)
#else
if (present(m)) then
m_ = m
else
m_ = size(dat,1)
end if
n_ = size(dat,2)
allocate(dat_(m_*n_), stat=info)
k=1
do j=1,n_
do i=1, m_
dat_(k) = dat(i,j)
k = k + 1
end do
end do
call psi_snd(ctxt,psb_int8_tag,dst,dat_,psb_mesg_queue)
#endif
end subroutine psb_esndm
subroutine psb_ercvs(ctxt,dat,src)
#ifdef MPI_MOD
use mpi
#endif
implicit none
#ifdef MPI_H
include 'mpif.h'
#endif
type(psb_ctxt_type), intent(in) :: ctxt
integer(psb_epk_), intent(out) :: dat
integer(psb_mpk_), intent(in) :: src
integer(psb_mpk_) :: info, icomm
integer(psb_mpk_) :: status(mpi_status_size)
#if defined(SERIAL_MPI)
! do nothing
#else
icomm = psb_get_mpi_comm(ctxt)
call mpi_recv(dat,1,psb_mpi_epk_,src,psb_int8_tag,icomm,status,info)
call psb_test_nodes(psb_mesg_queue)
#endif
end subroutine psb_ercvs
subroutine psb_ercvv(ctxt,dat,src)
#ifdef MPI_MOD
use mpi
#endif
implicit none
#ifdef MPI_H
include 'mpif.h'
#endif
type(psb_ctxt_type), intent(in) :: ctxt
integer(psb_epk_), intent(out) :: dat(:)
integer(psb_mpk_), intent(in) :: src
integer(psb_epk_), allocatable :: dat_(:)
integer(psb_mpk_) :: info, icomm
integer(psb_mpk_) :: status(mpi_status_size)
#if defined(SERIAL_MPI)
#else
icomm = psb_get_mpi_comm(ctxt)
call mpi_recv(dat,size(dat),psb_mpi_epk_,src,psb_int8_tag,icomm,status,info)
call psb_test_nodes(psb_mesg_queue)
#endif
end subroutine psb_ercvv
subroutine psb_ercvm(ctxt,dat,src,m)
#ifdef MPI_MOD
use mpi
#endif
implicit none
#ifdef MPI_H
include 'mpif.h'
#endif
type(psb_ctxt_type), intent(in) :: ctxt
integer(psb_epk_), intent(out) :: dat(:,:)
integer(psb_mpk_), intent(in) :: src
integer(psb_ipk_), intent(in), optional :: m
integer(psb_epk_), allocatable :: dat_(:)
integer(psb_mpk_) :: info ,m_,n_, ld, mp_rcv_type
integer(psb_mpk_) :: i,j,k
integer(psb_mpk_) :: status(mpi_status_size), icomm
#if defined(SERIAL_MPI)
! What should we do here??
#else
if (present(m)) then
m_ = m
ld = size(dat,1)
n_ = size(dat,2)
call mpi_type_vector(n_,m_,ld,psb_mpi_epk_,mp_rcv_type,info)
if (info == mpi_success) call mpi_type_commit(mp_rcv_type,info)
icomm = psb_get_mpi_comm(ctxt)
if (info == mpi_success) call mpi_recv(dat,1,mp_rcv_type,src,&
& psb_int8_tag,icomm,status,info)
if (info == mpi_success) call mpi_type_free(mp_rcv_type,info)
else
icomm = psb_get_mpi_comm(ctxt)
call mpi_recv(dat,size(dat),psb_mpi_epk_,src,psb_int8_tag,icomm,status,info)
end if
if (info /= mpi_success) then
write(psb_err_unit,*) 'Error in psb_recv', info
end if
call psb_test_nodes(psb_mesg_queue)
#endif
end subroutine psb_ercvm
end module psi_e_p2p_mod