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amg4psblas/mlprec/impl/smoother/mld_c_jac_smoother_bld.f90

83 lines
2.4 KiB
Fortran

subroutine mld_c_jac_smoother_bld(a,desc_a,sm,upd,info,amold,vmold)
use psb_base_mod
use mld_c_diag_solver
use mld_c_jac_smoother, mld_protect_name => mld_c_jac_smoother_bld
Implicit None
! Arguments
type(psb_cspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_c_jac_smoother_type), intent(inout) :: sm
character, intent(in) :: upd
integer, intent(out) :: info
class(psb_c_base_sparse_mat), intent(in), optional :: amold
class(psb_c_base_vect_type), intent(in), optional :: vmold
! Local variables
integer :: n_row,n_col, nrow_a, nztota, nzeros
complex(psb_spk_), pointer :: ww(:), aux(:), tx(:),ty(:)
integer :: ictxt,np,me,i, err_act, debug_unit, debug_level
character(len=20) :: name='c_jac_smoother_bld', ch_err
info=psb_success_
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = desc_a%get_context()
call psb_info(ictxt, me, np)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' start'
n_row = desc_a%get_local_rows()
nrow_a = a%get_nrows()
nztota = a%get_nzeros()
select type (smsv => sm%sv)
type is (mld_c_diag_solver_type)
call a%clip_diag(sm%nd,info)
class default
call a%csclip(sm%nd,info,&
& jmin=nrow_a+1,rscale=.false.,cscale=.false.)
end select
if (info == psb_success_) then
if (present(amold)) then
call sm%nd%cscnv(info,&
& mold=amold,dupl=psb_dupl_add_)
else
call sm%nd%cscnv(info,&
& type='csr',dupl=psb_dupl_add_)
endif
end if
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='clip & psb_spcnv csr 4')
goto 9999
end if
call sm%sv%build(a,desc_a,upd,info,amold=amold,vmold=vmold)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,&
& a_err='solver build')
goto 9999
end if
nzeros = sm%nd%get_nzeros()
call psb_sum(ictxt,nzeros)
sm%nnz_nd_tot = nzeros
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' end'
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error()
return
end if
return
end subroutine mld_c_jac_smoother_bld