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psblas3/base/tools/psb_cspasb.f90

144 lines
5.1 KiB
Fortran

!!$
!!$ Parallel Sparse BLAS version 2.2
!!$ (C) Copyright 2006/2007/2008
!!$ Salvatore Filippone University of Rome Tor Vergata
!!$ Alfredo Buttari University of Rome Tor Vergata
!!$
!!$ 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_cspasb.f90
!
! Subroutine: psb_cspasb
! Assemble sparse matrix
!
! Arguments:
! a - type(psb_c_sparse_mat). The sparse matrix to be assembled
! 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_cspasb(a,desc_a, info, afmt, upd, dupl,mold)
use psb_sparse_mod, psb_protect_name => psb_cspasb
use psi_mod
implicit none
!...Parameters....
type(psb_c_sparse_mat), intent (inout) :: a
type(psb_desc_type), intent(in) :: desc_a
integer, intent(out) :: info
integer,optional, intent(in) :: dupl, upd
character(len=*), optional, intent(in) :: afmt
class(psb_c_base_sparse_mat), intent(in), optional :: mold
!....Locals....
integer :: int_err(5)
integer :: np,me,n_col, err_act
integer :: spstate
integer :: ictxt,n_row
integer :: debug_level, debug_unit
character(len=20) :: name, ch_err
info = psb_success_
int_err(1)=0
name = 'psb_spasb'
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = psb_cd_get_context(desc_a)
n_row = psb_cd_get_local_rows(desc_a)
n_col = psb_cd_get_local_cols(desc_a)
! 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_asb_desc(desc_a)) then
info = psb_err_spmat_invalid_state_
int_err(1) = psb_cd_get_dectype(desc_a)
call psb_errpush(info,name)
goto 9999
endif
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 = psb_cd_get_local_rows(desc_a)
n_col = psb_cd_get_local_cols(desc_a)
call a%set_nrows(n_row)
call a%set_ncols(n_col)
end if
call a%cscnv(info,type=afmt,dupl=dupl, mold=mold)
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 (info /= psb_no_err_) then
info=psb_err_from_subroutine_
ch_err='psb_spcnv'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
endif
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error(ictxt)
return
end if
return
end subroutine psb_cspasb