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psblas3/base/comm/psb_ispgather.F90

565 lines
17 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.
!
!
! File: psb_ispgather.f90
!
! Gathers a sparse matrix onto a single process.
! Two variants:
! 1. Gathers to PSB_i_SPARSE_MAT (i.e. to matrix with IPK_ indices)
! 2. Gathers to PSB_@LX@_SPARSE_MAT (i.e. to matrix with LPK_ indices)
!
! Note: this function uses MPI_ALLGATHERV. At this time, the size of the
! resulting matrix must be within the range of 4 bytes because of the
! restriction on MPI displacements to be 4 bytes.
!
!
subroutine psb_isp_allgather(globa, loca, desc_a, info, root, dupl,keepnum,keeploc)
use iso_fortran_env
use psb_desc_mod
use psb_error_mod
use psb_penv_mod
use psb_mat_mod
use psb_tools_mod
#ifdef MPI_MOD
use mpi
#endif
implicit none
#ifdef MPI_H
include 'mpif.h'
#endif
type(psb_ispmat_type), intent(inout) :: loca
type(psb_ispmat_type), intent(inout) :: globa
type(psb_desc_type), intent(in) :: desc_a
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), intent(in), optional :: root, dupl
logical, intent(in), optional :: keepnum,keeploc
type(psb_i_coo_sparse_mat) :: loc_coo, glob_coo
integer(psb_ipk_) :: nrg, ncg, nzg, nzl
integer(psb_ipk_) :: err_act, dupl_
integer(psb_ipk_) :: ip,naggrm1,naggrp1, i, j, k
logical :: keepnum_, keeploc_
type(psb_ctxt_type) :: ctxt
integer(psb_mpk_) :: np, me
integer(psb_mpk_) :: icomm, minfo, ndx, root_
integer(psb_mpk_), allocatable :: nzbr(:), idisp(:)
integer(psb_lpk_), allocatable :: locia(:), locja(:), glbia(:), glbja(:)
integer(psb_ipk_) :: ierr(5)
character(len=20) :: name
integer(psb_ipk_) :: debug_level, debug_unit
name='psb_gather'
info=psb_success_
call psb_erractionsave(err_act)
if (psb_errstatus_fatal()) then
info = psb_err_internal_error_ ; goto 9999
end if
ctxt = desc_a%get_context()
icomm = desc_a%get_mpic()
call psb_info(ctxt, me, np)
if (present(keepnum)) then
keepnum_ = keepnum
else
keepnum_ = .true.
end if
if (present(keeploc)) then
keeploc_ = keeploc
else
keeploc_ = .true.
end if
if (present(root)) then
root_ = root
else
root_ = -1
end if
if ((root_ == -1).or.(root_ == me)) call globa%free()
if (keepnum_) then
nrg = desc_a%get_global_rows()
ncg = desc_a%get_global_rows()
allocate(nzbr(np), idisp(np),stat=info)
if (info /= psb_success_) then
info=psb_err_alloc_request_
ierr(1) = 2*np
call psb_errpush(info,name,i_err=ierr,a_err='integer')
goto 9999
end if
if (keeploc_) then
call loca%cp_to(loc_coo)
else
call loca%mv_to(loc_coo)
end if
nzl = loc_coo%get_nzeros()
call psb_realloc(nzl,locia,info)
call psb_realloc(nzl,locja,info)
call psb_loc_to_glob(loc_coo%ia(1:nzl),locia(1:nzl),desc_a,info,iact='I')
call psb_loc_to_glob(loc_coo%ja(1:nzl),locja(1:nzl),desc_a,info,iact='I')
nzbr(:) = 0
nzbr(me+1) = nzl
call psb_sum(ctxt,nzbr(1:np))
nzg = sum(nzbr)
if (nzg <0) then
info = psb_err_mpi_int_ovflw_
call psb_errpush(info,name); goto 9999
end if
if (nrg > HUGE(1_psb_mpk_)) then
info = psb_err_mpi_int_ovflw_
call psb_errpush(info,name); goto 9999
end if
if ((root_ == -1).or.(root_ == me)) then
if (info == psb_success_) call psb_realloc(nzg,glbia,info)
if (info == psb_success_) call psb_realloc(nzg,glbja,info)
if (info == psb_success_) call glob_coo%allocate(nrg,ncg,nzg)
else
if (info == psb_success_) call psb_realloc(ione,glbia,info)
if (info == psb_success_) call psb_realloc(ione,glbja,info)
if (info == psb_success_) call glob_coo%allocate(ione,ione,ione)
end if
if (info /= psb_success_) goto 9999
do ip=1,np
idisp(ip) = sum(nzbr(1:ip-1))
enddo
ndx = nzbr(me+1)
if (root_ == -1) then
call mpi_allgatherv(loc_coo%val,ndx,psb_mpi_ipk_,&
& glob_coo%val,nzbr,idisp,&
& psb_mpi_ipk_,icomm,minfo)
if (minfo == psb_success_) call &
& mpi_allgatherv(locia,ndx,psb_mpi_lpk_,&
& glbia,nzbr,idisp,&
& psb_mpi_lpk_,icomm,minfo)
if (minfo == psb_success_) call &
& mpi_allgatherv(locja,ndx,psb_mpi_lpk_,&
& glbja,nzbr,idisp,&
& psb_mpi_lpk_,icomm,minfo)
else
call mpi_gatherv(loc_coo%val,ndx,psb_mpi_ipk_,&
& glob_coo%val,nzbr,idisp,&
& psb_mpi_ipk_,root_,icomm,minfo)
if (minfo == psb_success_) call &
& mpi_gatherv(locia,ndx,psb_mpi_lpk_,&
& glbia,nzbr,idisp,&
& psb_mpi_lpk_,root_,icomm,minfo)
if (minfo == psb_success_) call &
& mpi_gatherv(locja,ndx,psb_mpi_lpk_,&
& glbja,nzbr,idisp,&
& psb_mpi_lpk_,root_,icomm,minfo)
end if
if (minfo /= psb_success_) then
info = minfo
call psb_errpush(psb_err_internal_error_,name,a_err=' from mpi_allgatherv')
goto 9999
end if
call loc_coo%free()
deallocate(locia,locja, stat=info)
!
! Is the code below safe? For very large cases
! the indices in glob_coo will overflow. But then,
! for very large cases it does not make sense to
! gather the matrix on a single procecss anyway...
!
if ((root_ == -1).or.(root_ == me)) then
glob_coo%ia(1:nzg) = glbia(1:nzg)
glob_coo%ja(1:nzg) = glbja(1:nzg)
call glob_coo%set_nzeros(nzg)
if (present(dupl)) call glob_coo%set_dupl(dupl)
call globa%mv_from(glob_coo)
end if
deallocate(glbia,glbja, stat=info)
else
write(psb_err_unit,*) 'SP_ALLGATHER: Not implemented yet with keepnum ',keepnum_
info = -1
goto 9999
end if
call psb_erractionrestore(err_act)
return
9999 continue
call psb_errpush(info,name)
call psb_error_handler(ctxt,err_act)
return
end subroutine psb_isp_allgather
subroutine psb_@LX@sp_allgather(globa, loca, desc_a, info, root, dupl,keepnum,keeploc)
use iso_fortran_env
use psb_desc_mod
use psb_error_mod
use psb_penv_mod
use psb_mat_mod
use psb_tools_mod
#ifdef MPI_MOD
use mpi
#endif
implicit none
#ifdef MPI_H
include 'mpif.h'
#endif
type(psb_ispmat_type), intent(inout) :: loca
type(psb_@LX@spmat_type), intent(inout) :: globa
type(psb_desc_type), intent(in) :: desc_a
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), intent(in), optional :: root, dupl
logical, intent(in), optional :: keepnum,keeploc
type(psb_@LX@_coo_sparse_mat) :: loc_coo, glob_coo
integer(psb_lpk_) :: nrg, ncg, nzg
integer(psb_ipk_) :: err_act, dupl_
integer(psb_ipk_) :: ip,naggrm1,naggrp1, i, j, k, nzl
logical :: keepnum_, keeploc_
type(psb_ctxt_type) :: ctxt
integer(psb_ipk_) :: np, me
integer(psb_mpk_) :: icomm, minfo, ndx, root_
integer(psb_mpk_), allocatable :: nzbr(:), idisp(:)
integer(psb_lpk_), allocatable :: lnzbr(:)
integer(psb_ipk_) :: ierr(5)
character(len=20) :: name
integer(psb_ipk_) :: debug_level, debug_unit
name='psb_gather'
info=psb_success_
call psb_erractionsave(err_act)
if (psb_errstatus_fatal()) then
info = psb_err_internal_error_ ; goto 9999
end if
ctxt = desc_a%get_context()
icomm = desc_a%get_mpic()
call psb_info(ctxt, me, np)
if (present(keepnum)) then
keepnum_ = keepnum
else
keepnum_ = .true.
end if
if (present(keeploc)) then
keeploc_ = keeploc
else
keeploc_ = .true.
end if
if (present(root)) then
root_ = root
else
root_ = -1
end if
if ((root_ == -1).or.(root_ == me)) call globa%free()
if (keepnum_) then
nrg = desc_a%get_global_rows()
ncg = desc_a%get_global_rows()
allocate(nzbr(np), idisp(np),lnzbr(np),stat=info)
if (info /= psb_success_) then
info=psb_err_alloc_request_; ierr(1) = 3*np
call psb_errpush(info,name,i_err=ierr,a_err='integer')
goto 9999
end if
if (keeploc_) then
call loca%cp_to(loc_coo)
else
call loca%mv_to(loc_coo)
end if
nzl = loc_coo%get_nzeros()
call psb_loc_to_glob(loc_coo%ia(1:nzl),desc_a,info,iact='I')
call psb_loc_to_glob(loc_coo%ja(1:nzl),desc_a,info,iact='I')
nzbr(:) = 0
nzbr(me+1) = nzl
call psb_sum(ctxt,nzbr(1:np))
lnzbr = nzbr
nzg = sum(nzbr)
if ((nzg < 0).or.(nzg /= sum(lnzbr))) then
info = psb_err_mpi_int_ovflw_
call psb_errpush(info,name); goto 9999
end if
if ((nrg > HUGE(1_psb_mpk_)).or.(nzg > HUGE(1_psb_mpk_))&
& .or.(sum(lnzbr) > HUGE(1_psb_mpk_))) then
info = psb_err_mpi_int_ovflw_
call psb_errpush(info,name); goto 9999
end if
if ((root_ == -1).or.(root_ == me)) then
if (info == psb_success_) call glob_coo%allocate(nrg,ncg,nzg)
else
if (info == psb_success_) call glob_coo%allocate(1_psb_lpk_,1_psb_lpk_,1_psb_lpk_)
end if
if (info /= psb_success_) goto 9999
!
! PLS REVIEW AND ADD OVERFLOW ERROR CHECKING
!
do ip=1,np
idisp(ip) = sum(nzbr(1:ip-1))
enddo
ndx = nzbr(me+1)
if (root_ == -1) then
call mpi_allgatherv(loc_coo%val,ndx,psb_mpi_ipk_,&
& glob_coo%val,nzbr,idisp,&
& psb_mpi_ipk_,icomm,minfo)
if (minfo == psb_success_) call &
& mpi_allgatherv(loc_coo%ia,ndx,psb_mpi_lpk_,&
& glob_coo%ia,nzbr,idisp,&
& psb_mpi_lpk_,icomm,minfo)
if (minfo == psb_success_) call &
& mpi_allgatherv(loc_coo%ja,ndx,psb_mpi_lpk_,&
& glob_coo%ja,nzbr,idisp,&
& psb_mpi_lpk_,icomm,minfo)
else
call mpi_gatherv(loc_coo%val,ndx,psb_mpi_ipk_,&
& glob_coo%val,nzbr,idisp,&
& psb_mpi_ipk_,root_,icomm,minfo)
if (minfo == psb_success_) call &
& mpi_gatherv(loc_coo%ia,ndx,psb_mpi_lpk_,&
& glob_coo%ia,nzbr,idisp,&
& psb_mpi_lpk_,root_,icomm,minfo)
if (minfo == psb_success_) call &
& mpi_gatherv(loc_coo%ja,ndx,psb_mpi_lpk_,&
& glob_coo%ja,nzbr,idisp,&
& psb_mpi_lpk_,root_,icomm,minfo)
end if
if (minfo /= psb_success_) then
info = minfo
call psb_errpush(psb_err_internal_error_,name,a_err=' from mpi_allgatherv')
goto 9999
end if
call loc_coo%free()
!
! Is the code below safe? For very large cases
! the indices in glob_coo will overflow. But then,
! for very large cases it does not make sense to
! gather the matrix on a single procecss anyway...
!
if ((root_ == -1).or.(root_ == me)) then
call glob_coo%set_nzeros(nzg)
if (present(dupl)) call glob_coo%set_dupl(dupl)
call globa%mv_from(glob_coo)
end if
else
write(psb_err_unit,*) 'SP_ALLGATHER: Not implemented yet with keepnum ',keepnum_
info = -1
goto 9999
end if
call psb_erractionrestore(err_act)
return
9999 continue
call psb_errpush(info,name)
call psb_error_handler(ctxt,err_act)
return
end subroutine psb_@LX@sp_allgather
subroutine psb_@LX@@LX@sp_allgather(globa, loca, desc_a, info, root, dupl,keepnum,keeploc)
use iso_fortran_env
use psb_desc_mod
use psb_error_mod
use psb_penv_mod
use psb_mat_mod
use psb_tools_mod
#ifdef MPI_MOD
use mpi
#endif
implicit none
#ifdef MPI_H
include 'mpif.h'
#endif
type(psb_@LX@spmat_type), intent(inout) :: loca
type(psb_@LX@spmat_type), intent(inout) :: globa
type(psb_desc_type), intent(in) :: desc_a
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), intent(in), optional :: root, dupl
logical, intent(in), optional :: keepnum,keeploc
type(psb_@LX@_coo_sparse_mat) :: loc_coo, glob_coo
integer(psb_lpk_) :: nrg, ncg, nzg
integer(psb_ipk_) :: err_act, dupl_
integer(psb_lpk_) :: ip,naggrm1,naggrp1, i, j, k, nzl
logical :: keepnum_, keeploc_
type(psb_ctxt_type) :: ctxt
integer(psb_ipk_) :: np, me
integer(psb_mpk_) :: icomm, minfo, ndx, root_
integer(psb_mpk_), allocatable :: nzbr(:), idisp(:)
integer(psb_lpk_), allocatable :: lnzbr(:)
integer(psb_ipk_) :: ierr(5)
character(len=20) :: name
integer(psb_ipk_) :: debug_level, debug_unit
name='psb_gather'
info=psb_success_
call psb_erractionsave(err_act)
if (psb_errstatus_fatal()) then
info = psb_err_internal_error_ ; goto 9999
end if
ctxt = desc_a%get_context()
icomm = desc_a%get_mpic()
call psb_info(ctxt, me, np)
if (present(keepnum)) then
keepnum_ = keepnum
else
keepnum_ = .true.
end if
if (present(keeploc)) then
keeploc_ = keeploc
else
keeploc_ = .true.
end if
if (present(root)) then
root_ = root
else
root_ = -1
end if
if ((root_ == -1).or.(root_ == me)) call globa%free()
if (keepnum_) then
nrg = desc_a%get_global_rows()
ncg = desc_a%get_global_rows()
allocate(nzbr(np), idisp(np),lnzbr(np),stat=info)
if (info /= psb_success_) then
info=psb_err_alloc_request_; ierr(1) = 3*np
call psb_errpush(info,name,i_err=ierr,a_err='integer')
goto 9999
end if
if (keeploc_) then
call loca%cp_to(loc_coo)
else
call loca%mv_to(loc_coo)
end if
nzl = loc_coo%get_nzeros()
call psb_loc_to_glob(loc_coo%ia(1:nzl),desc_a,info,iact='I')
call psb_loc_to_glob(loc_coo%ja(1:nzl),desc_a,info,iact='I')
nzbr(:) = 0
nzbr(me+1) = nzl
call psb_sum(ctxt,nzbr(1:np))
lnzbr = nzbr
nzg = sum(nzbr)
if ((nzg < 0).or.(nzg /= sum(lnzbr))) then
info = psb_err_mpi_int_ovflw_
call psb_errpush(info,name); goto 9999
end if
if ((nrg > HUGE(1_psb_mpk_)).or.(nzg > HUGE(1_psb_mpk_))&
& .or.(sum(lnzbr) > HUGE(1_psb_mpk_))) then
info = psb_err_mpi_int_ovflw_
call psb_errpush(info,name); goto 9999
end if
if ((root_ == -1).or.(root_ == me)) then
if (info == psb_success_) call glob_coo%allocate(nrg,ncg,nzg)
else
if (info == psb_success_) call glob_coo%allocate(1_psb_lpk_,1_psb_lpk_,1_psb_lpk_)
end if
if (info /= psb_success_) goto 9999
do ip=1,np
idisp(ip) = sum(nzbr(1:ip-1))
enddo
ndx = nzbr(me+1)
if (root_ == -1) then
call mpi_allgatherv(loc_coo%val,ndx,psb_mpi_ipk_,&
& glob_coo%val,nzbr,idisp,&
& psb_mpi_ipk_,icomm,minfo)
if (minfo == psb_success_) call &
& mpi_allgatherv(loc_coo%ia,ndx,psb_mpi_lpk_,&
& glob_coo%ia,nzbr,idisp,&
& psb_mpi_lpk_,icomm,minfo)
if (minfo == psb_success_) call &
& mpi_allgatherv(loc_coo%ja,ndx,psb_mpi_lpk_,&
& glob_coo%ja,nzbr,idisp,&
& psb_mpi_lpk_,icomm,minfo)
else
call mpi_gatherv(loc_coo%val,ndx,psb_mpi_ipk_,&
& glob_coo%val,nzbr,idisp,&
& psb_mpi_ipk_,root_,icomm,minfo)
if (minfo == psb_success_) call &
& mpi_gatherv(loc_coo%ia,ndx,psb_mpi_lpk_,&
& glob_coo%ia,nzbr,idisp,&
& psb_mpi_lpk_,root_,icomm,minfo)
if (minfo == psb_success_) call &
& mpi_gatherv(loc_coo%ja,ndx,psb_mpi_lpk_,&
& glob_coo%ja,nzbr,idisp,&
& psb_mpi_lpk_,root_,icomm,minfo)
end if
if (minfo /= psb_success_) then
info = minfo
call psb_errpush(psb_err_internal_error_,name,a_err=' from mpi_allgatherv')
goto 9999
end if
call loc_coo%free()
!
if ((root_ == -1).or.(root_ == me)) then
call glob_coo%set_nzeros(nzg)
if (present(dupl)) call glob_coo%set_dupl(dupl)
call globa%mv_from(glob_coo)
end if
else
write(psb_err_unit,*) 'SP_ALLGATHER: Not implemented yet with keepnum ',keepnum_
info = -1
goto 9999
end if
call psb_erractionrestore(err_act)
return
9999 continue
call psb_errpush(info,name)
call psb_error_handler(ctxt,err_act)
return
end subroutine psb_@LX@@LX@sp_allgather