psblas3/base/tools/psb_dspasb.f90

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!!$              Parallel Sparse BLAS  v2.0
!!$    (C) Copyright 2006 Salvatore Filippone    University of Rome Tor Vergata
!!$                       Alfredo Buttari        University of Rome Tor Vergata
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! 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)
  use psb_descriptor_type
  use psb_spmat_type
  use psb_serial_mod
  use psb_const_mod
  use psi_mod
  use psb_error_mod
  use psb_string_mod
  use psb_penv_mod
  implicit none


  !...Parameters....
  type(psb_dspmat_type), 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
  !....Locals....
  integer               :: int_err(5)
  type(psb_dspmat_type) :: atemp
  integer               :: np,me,n_col,iout, err_act
  integer               :: spstate
  integer               :: upd_, dupl_
  integer               :: ictxt,n_row
  logical, parameter    :: debug=.false., debugwrt=.false.
  character(len=20)     :: name, ch_err

  info = 0
  int_err(1)=0
  name = 'psb_spasb'
  call psb_erractionsave(err_act)

  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 = 2010
    call psb_errpush(info,name)
    goto 9999
  endif

  if (.not.psb_is_asb_desc(desc_a)) then 
    info = 600
    int_err(1) = psb_cd_get_dectype(desc_a)
    call psb_errpush(info,name)
    goto 9999
  endif

  if (debug) Write (*, *) '   Begin matrix assembly...'

  !check on errors encountered in psdspins

  spstate = a%infoa(psb_state_) 
  if (spstate == psb_spmat_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)
    a%m = n_row
    a%k = n_col
  end if

  call psb_spcnv(a,info,afmt=afmt,upd=upd,dupl=dupl)

  IF (debug) WRITE (*, *) me,'   ASB:  From SPCNV',info,' ',A%FIDA
  if (info /= psb_no_err_) then    
    info=4010
    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_dspasb