|
|
|
|
subroutine psb_dsp_allgather(globa, loca, desc_a, info, root, dupl,keepnum,keeploc)
|
|
|
|
|
use psb_descriptor_type
|
|
|
|
|
use psb_error_mod
|
|
|
|
|
use psb_mat_mod
|
|
|
|
|
use psb_penv_mod
|
|
|
|
|
#ifdef MPI_MOD
|
|
|
|
|
use mpi
|
|
|
|
|
#endif
|
|
|
|
|
implicit none
|
|
|
|
|
#ifdef MPI_H
|
|
|
|
|
include 'mpif.h'
|
|
|
|
|
#endif
|
|
|
|
|
type(psb_dspmat_type), intent(inout) :: loca
|
|
|
|
|
type(psb_dspmat_type), intent(inout) :: globa
|
|
|
|
|
type(psb_desc_type), intent(in) :: desc_a
|
|
|
|
|
integer, intent(out) :: info
|
|
|
|
|
integer, intent(in), optional :: root, dupl
|
|
|
|
|
logical, intent(in), optional :: keepnum,keeploc
|
|
|
|
|
|
|
|
|
|
type(psb_d_coo_sparse_mat) :: loc_coo, glob_coo
|
|
|
|
|
integer :: ictxt,np,me, err_act, icomm, dupl_, nrg, ncg, nzg
|
|
|
|
|
integer :: ip, ndx,naggrm1,naggrp1, i, j, k
|
|
|
|
|
logical :: keepnum_, keeploc_
|
|
|
|
|
integer, allocatable :: nzbr(:), idisp(:)
|
|
|
|
|
character(len=20) :: name
|
|
|
|
|
integer :: debug_level, debug_unit
|
|
|
|
|
|
|
|
|
|
name='psb_gather'
|
|
|
|
|
if (psb_get_errstatus().ne.0) return
|
|
|
|
|
info=psb_success_
|
|
|
|
|
|
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
|
ictxt = desc_a%get_context()
|
|
|
|
|
icomm = desc_a%get_mpic()
|
|
|
|
|
call psb_info(ictxt, me, np)
|
|
|
|
|
|
|
|
|
|
if (present(keepnum)) then
|
|
|
|
|
keepnum_ = keepnum
|
|
|
|
|
else
|
|
|
|
|
keepnum_ = .true.
|
|
|
|
|
end if
|
|
|
|
|
if (present(keeploc)) then
|
|
|
|
|
keeploc_ = keeploc
|
|
|
|
|
else
|
|
|
|
|
keeploc_ = .true.
|
|
|
|
|
end if
|
|
|
|
|
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_
|
|
|
|
|
call psb_errpush(info,name,i_err=(/2*np,0,0,0,0/),&
|
|
|
|
|
& a_err='integer')
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
call loca%mv_to(loc_coo)
|
|
|
|
|
nzbr(:) = 0
|
|
|
|
|
nzbr(me+1) = loc_coo%get_nzeros()
|
|
|
|
|
call psb_sum(ictxt,nzbr(1:np))
|
|
|
|
|
nzg = sum(nzbr)
|
|
|
|
|
if (info == psb_success_) call glob_coo%allocate(nrg,ncg,nzg)
|
|
|
|
|
if (info /= psb_success_) goto 9999
|
|
|
|
|
do ip=1,np
|
|
|
|
|
idisp(ip) = sum(nzbr(1:ip-1))
|
|
|
|
|
enddo
|
|
|
|
|
ndx = nzbr(me+1)
|
|
|
|
|
call mpi_allgatherv(loc_coo%val,ndx,mpi_double_precision,&
|
|
|
|
|
& glob_coo%val,nzbr,idisp,&
|
|
|
|
|
& mpi_double_precision,icomm,info)
|
|
|
|
|
if (info == psb_success_) call mpi_allgatherv(loc_coo%ia,ndx,mpi_integer,&
|
|
|
|
|
& glob_coo%ia,nzbr,idisp,&
|
|
|
|
|
& mpi_integer,icomm,info)
|
|
|
|
|
if (info == psb_success_) call mpi_allgatherv(loc_coo%ja,ndx,mpi_integer,&
|
|
|
|
|
& glob_coo%ja,nzbr,idisp,&
|
|
|
|
|
& mpi_integer,icomm,info)
|
|
|
|
|
|
|
|
|
|
if (info /= psb_success_) then
|
|
|
|
|
call psb_errpush(psb_err_internal_error_,name,a_err=' from mpi_allgatherv')
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
if (keeploc_) then
|
|
|
|
|
call loca%mv_from(loc_coo)
|
|
|
|
|
else
|
|
|
|
|
call loc_coo%free()
|
|
|
|
|
end if
|
|
|
|
|
call glob_coo%set_nzeros(nzg)
|
|
|
|
|
if (present(dupl)) call glob_coo%set_dupl(dupl)
|
|
|
|
|
call globa%mv_from(glob_coo)
|
|
|
|
|
|
|
|
|
|
else
|
|
|
|
|
write(psb_err_unit,*) 'SP_ALLGATHER: Not implemented yet with keepnum ',keepnum_
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
call psb_erractionrestore(err_act)
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
9999 continue
|
|
|
|
|
call psb_errpush(info,name)
|
|
|
|
|
call psb_erractionrestore(err_act)
|
|
|
|
|
if (err_act.eq.psb_act_abort_) then
|
|
|
|
|
call psb_error()
|
|
|
|
|
return
|
|
|
|
|
end if
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
end subroutine psb_dsp_allgather
|
