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psblas3/base/tools/psb_icdasb.F90

231 lines
7.3 KiB
Fortran

!!$
!!$ Parallel Sparse BLAS version 3.0
!!$ (C) Copyright 2006, 2007, 2008, 2009, 2010
!!$ Salvatore Filippone University of Rome Tor Vergata
!!$ Alfredo Buttari CNRS-IRIT, Toulouse
!!$
!!$ 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_icdasb.f90
!
! Subroutine: psb_icdasb
! Assemble the psblas communications descriptor: inner part.
! The user callable routine is defined in the psb_tools_mod module.
!
! Arguments:
! desc - type(psb_desc_type). The communication descriptor.
! info - integer. return code.
! ext_hv - logical Essentially this distinguishes a call
! coming from the build of an extended
! halo descriptor with respect to a normal call.
!
subroutine psb_icdasb(desc,info,ext_hv)
use psb_base_mod, psb_protect_name => psb_icdasb
use psi_mod
#ifdef MPI_MOD
use mpi
#endif
implicit none
#ifdef MPI_H
include 'mpif.h'
#endif
!...Parameters....
type(psb_desc_type), intent(inout) :: desc
integer(psb_ipk_), intent(out) :: info
logical, intent(in), optional :: ext_hv
!....Locals....
integer(psb_ipk_) :: int_err(5)
integer(psb_ipk_),allocatable :: ovrlap_index(:),halo_index(:), ext_index(:)
integer(psb_ipk_) :: i, n_col, dectype, err_act, n_row,j
integer(psb_mpik_) :: np,me, icomm, ictxt,proc_to_comm
logical :: ext_hv_
integer(psb_ipk_) :: debug_level, debug_unit
integer :: totxch, idxr, idxs, data_, pnti, snd_pt, rcv_pt,nerv,nesd,idx_pt
integer, allocatable :: blens(:), new_idx(:)
integer(psb_ipk_), pointer :: idx(:)
character(len=20) :: name
info = psb_success_
int_err(1) = 0
name = 'psb_cdasb'
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = desc%get_context()
dectype = desc%get_dectype()
n_row = desc%get_local_rows()
n_col = desc%get_local_cols()
call psb_get_mpicomm(ictxt,icomm )
! check on blacs grid
call psb_info(ictxt, me, np)
if (np == -1) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
endif
if (.not.psb_is_ok_desc(desc)) then
info = psb_err_spmat_invalid_state_
int_err(1) = dectype
call psb_errpush(info,name)
goto 9999
endif
info = psb_get_errstatus()
if (info /= psb_success_) then
! Something went wrong in cdins/spins
! signal and exit
info = psb_err_wrong_ins_
call psb_errpush(info,name)
goto 9999
end if
if (present(ext_hv)) then
ext_hv_ = ext_hv
else
ext_hv_ = .false.
end if
if (debug_level >= psb_debug_ext_) &
& write(debug_unit, *) me,' ',trim(name),': start'
if (allocated(desc%indxmap)) then
call psi_ldsc_pre_halo(desc,ext_hv_,info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,a_err='ldsc_pre_halo')
goto 9999
end if
! Take out the lists for ovrlap, halo and ext...
call psb_move_alloc(desc%ovrlap_index,ovrlap_index,info)
call psb_move_alloc(desc%halo_index,halo_index,info)
call psb_move_alloc(desc%ext_index,ext_index,info)
if (debug_level >= psb_debug_ext_) &
& write(debug_unit,*) me,' ',trim(name),': Final conversion'
! Then convert and put them back where they belong.
call psi_cnv_dsc(halo_index,ovrlap_index,ext_index,desc,info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,a_err='psi_cnv_dsc')
goto 9999
end if
deallocate(ovrlap_index, halo_index, ext_index, stat=info)
if (info /= psb_success_) then
info =psb_err_alloc_dealloc_
call psb_errpush(info,name)
goto 9999
end if
call desc%indxmap%asb(info)
if (info == psb_success_) then
if (allocated(desc%indxmap%tempvg)) &
& deallocate(desc%indxmap%tempvg,stat=info)
end if
if (info /= psb_success_) then
write(0,*) 'Error from internal indxmap asb ',info
info = psb_success_
end if
else
info = psb_err_spmat_invalid_state_
call psb_errpush(info,name)
goto 9999
endif
!datatypes allocation
data_ = psb_comm_halo_
call desc%get_list(data_,idx,totxch,idxr,idxs,info)
!Send/Gather
pnti = 1
snd_pt = 1
rcv_pt = 1
allocate(desc%sendtypes(totxch), stat=info)
do i=1, totxch
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
idx_pt = 1+pnti+nerv+psb_n_elem_send_
allocate(blens(nesd),stat=info)
do j=1,nesd
blens(j) = 1
end do
call MPI_TYPE_INDEXED(nesd,blens,(idx(idx_pt:idx_pt+nesd-1)-1),&
& mpi_double_precision,desc%sendtypes(i),info)
call MPI_TYPE_COMMIT(desc%sendtypes(i),info)
deallocate(blens,stat=info)
snd_pt = snd_pt + nesd
pnti = pnti + nerv + nesd + 3
end do
pnti = 1
snd_pt = 1
rcv_pt = 1
!Recv/Scatter
allocate(desc%recvtypes(totxch), stat=info)
do i=1, totxch
proc_to_comm = idx(pnti+psb_proc_id_)
nerv = idx(pnti+psb_n_elem_recv_)
nesd = idx(pnti+nerv+psb_n_elem_send_)
idx_pt = 1+pnti+psb_n_elem_recv_
allocate(blens(nerv),stat=info)
do j=1, nerv
blens(j) = 1
end do
call MPI_TYPE_INDEXED(nerv,blens,(idx(idx_pt:idx_pt+nerv-1)-1),&
& mpi_double_precision,desc%recvtypes(i),info)
call MPI_TYPE_COMMIT(desc%recvtypes(i),info)
deallocate(blens,stat=info)
rcv_pt = rcv_pt + nerv
snd_pt = snd_pt + nesd
pnti = pnti + nerv + nesd + 3
end do
if (debug_level >= psb_debug_ext_) &
& write(debug_unit,*) me,' ',trim(name),': Done'
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_ret_) then
return
else
call psb_error(ictxt)
end if
return
end subroutine psb_icdasb