amg4psblas/mlprec/mld_daggrmat_asb.f90

!!$ 
!!$ 
!!$                    MD2P4
!!$    Multilevel Domain Decomposition Parallel Preconditioner Package for PSBLAS
!!$                      for 
!!$              Parallel Sparse BLAS  v2.0
!!$    (C) Copyright 2006 Salvatore Filippone    University of Rome Tor Vergata
!!$                       Alfredo Buttari        University of Rome Tor Vergata
!!$                       Daniela di Serafino    Second University of Naples
!!$                       Pasqua D'Ambra         ICAR-CNR                      
!!$ 
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!!$  
subroutine mld_daggrmat_asb(a,desc_a,ac,desc_ac,p,info)
  use psb_base_mod
  use mld_prec_mod, mld_protect_name => mld_daggrmat_asb

  implicit none

  type(psb_dspmat_type), intent(in), target  :: a
  type(mld_dbaseprc_type), intent(inout), target  :: p
  type(psb_dspmat_type), intent(inout), target :: ac
  type(psb_desc_type), intent(in)            :: desc_a
  type(psb_desc_type), intent(inout)         :: desc_ac
  integer, intent(out)                       :: info

  logical, parameter :: aggr_dump=.false.
  integer ::ictxt,np,me, err_act, icomm
  character(len=20) :: name, ch_err

  name='mld_aggrmat_asb'
  if(psb_get_errstatus().ne.0) return 
  info=0
  call psb_erractionsave(err_act)

  ictxt = psb_cd_get_context(desc_a)
  icomm = psb_cd_get_mpic(desc_a)

  call psb_info(ictxt, me, np)

  select case (p%iprcparm(mld_aggr_kind_))
  case (mld_no_smooth_) 

    call mld_aggrmat_raw_asb(a,desc_a,ac,desc_ac,p,info)

    if(info /= 0) then
      call psb_errpush(4010,name,a_err='raw_aggregate')
      goto 9999
    end if
    if (aggr_dump) call psb_csprt(90+me,ac,head='% Raw aggregate.')

  case(mld_smooth_prol_,mld_biz_prol_) 
    if (aggr_dump) call psb_csprt(70+me,a,head='% Input matrix')
    call mld_aggrmat_smth_asb(a,desc_a,ac,desc_ac,p,info)

    if(info /= 0) then
      call psb_errpush(4010,name,a_err='smooth_aggregate')
      goto 9999
    end if
    if (aggr_dump) call psb_csprt(90+me,ac,head='% Smooth aggregate.')
  case default
    call psb_errpush(4010,name,a_err=name)
    goto 9999

  end select

  call psb_erractionrestore(err_act)
  return

9999 continue
  call psb_erractionrestore(err_act)
  if (err_act.eq.psb_act_abort_) then
    call psb_error()
    return
  end if
  return

end subroutine mld_daggrmat_asb