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psblas3/base/tools/psb_dspasb.f90

146 lines
4.9 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_dspasb.f90
!
! Subroutine: psb_dspasb
! Assemble sparse matrix
!
! Arguments:
! a - type(psb_dspmat_type). The sparse matrix to be allocated.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. return code.
! afmt - character(optional) The desired output storage format.
! upd - character(optional). How will the matrix be updated?
! psb_upd_srch_ Simple strategy
! psb_upd_perm_ Permutation(more memory)
! dupl - integer(optional). Duplicate coefficient handling:
! psb_dupl_ovwrt_ overwrite
! psb_dupl_add_ add
! psb_dupl_err_ raise an error.
!
!
subroutine psb_dspasb(a,desc_a, info, afmt, upd, dupl, mold)
use psb_base_mod, psb_protect_name => psb_dspasb
use psi_mod
implicit none
!...Parameters....
type(psb_dspmat_type), intent (inout) :: a
type(psb_desc_type), intent(in) :: desc_a
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_),optional, intent(in) :: dupl, upd
character(len=*), optional, intent(in) :: afmt
class(psb_d_base_sparse_mat), intent(in), optional :: mold
!....Locals....
type(psb_ctxt_type) :: ictxt
integer(psb_ipk_) :: np,me, err_act
integer(psb_ipk_) :: n_row,n_col
integer(psb_ipk_) :: debug_level, debug_unit
character(len=20) :: name, ch_err
info = psb_success_
name = 'psb_spasb'
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = desc_a%get_context()
n_row = desc_a%get_local_rows()
n_col = desc_a%get_local_cols()
! 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.desc_a%is_asb()) then
info = psb_err_invalid_cd_state_
call psb_errpush(info,name)
goto 9999
end if
if (debug_level >= psb_debug_ext_)&
& write(debug_unit, *) me,' ',trim(name),&
& ' Begin matrix assembly...'
!check on errors encountered in psdspins
if (a%is_bld()) then
!
! First case: we come from a fresh build.
!
n_row = desc_a%get_local_rows()
n_col = desc_a%get_local_cols()
call a%set_nrows(n_row)
call a%set_ncols(n_col)
end if
if (a%is_bld()) then
call a%cscnv(info,type=afmt,dupl=dupl, mold=mold)
else if (a%is_upd()) then
call a%asb(mold=mold)
else
info = psb_err_invalid_mat_state_
call psb_errpush(info,name)
goto 9999
end if
if (debug_level >= psb_debug_ext_) then
ch_err=a%get_fmt()
write(debug_unit, *) me,' ',trim(name),': From SPCNV',&
& info,' ',ch_err
end if
if (psb_errstatus_fatal()) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='cscnv')
goto 9999
endif
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ictxt,err_act)
return
end subroutine psb_dspasb