You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
190 lines
7.0 KiB
Fortran
190 lines
7.0 KiB
Fortran
!!$
|
|
!!$
|
|
!!$ MLD2P4 version 2.0
|
|
!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
|
|
!!$ based on PSBLAS (Parallel Sparse BLAS version 3.3)
|
|
!!$
|
|
!!$ (C) Copyright 2008, 2010, 2012, 2015
|
|
!!$
|
|
!!$ Salvatore Filippone University of Rome Tor Vergata
|
|
!!$ Alfredo Buttari CNRS-IRIT, Toulouse
|
|
!!$ Pasqua D'Ambra ICAR-CNR, Naples
|
|
!!$ Daniela di Serafino Second University of Naples
|
|
!!$
|
|
!!$ 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 MLD2P4 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 MLD2P4 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.
|
|
!!$
|
|
!!$
|
|
subroutine mld_d_as_smoother_bld(a,desc_a,sm,upd,info,amold,vmold,imold)
|
|
|
|
use psb_base_mod
|
|
use mld_d_as_smoother, mld_protect_nam => mld_d_as_smoother_bld
|
|
Implicit None
|
|
|
|
! Arguments
|
|
type(psb_dspmat_type), intent(in), target :: a
|
|
Type(psb_desc_type), Intent(inout) :: desc_a
|
|
class(mld_d_as_smoother_type), intent(inout) :: sm
|
|
character, intent(in) :: upd
|
|
integer(psb_ipk_), intent(out) :: info
|
|
class(psb_d_base_sparse_mat), intent(in), optional :: amold
|
|
class(psb_d_base_vect_type), intent(in), optional :: vmold
|
|
class(psb_i_base_vect_type), intent(in), optional :: imold
|
|
|
|
! Local variables
|
|
type(psb_dspmat_type) :: blck, atmp
|
|
integer(psb_ipk_) :: n_row,n_col, nrow_a, nhalo, novr, data_, nzeros
|
|
real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
|
|
integer(psb_ipk_) :: ictxt,np,me,i, err_act, debug_unit, debug_level
|
|
character(len=20) :: name='d_as_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'
|
|
|
|
|
|
novr = sm%novr
|
|
if (novr < 0) then
|
|
info=psb_err_invalid_ovr_num_
|
|
call psb_errpush(info,name,&
|
|
& i_err=(/novr,izero,izero,izero,izero,izero/))
|
|
goto 9999
|
|
endif
|
|
|
|
if ((novr == 0).or.(np == 1)) then
|
|
if (psb_toupper(upd) == 'F') then
|
|
call psb_cdcpy(desc_a,sm%desc_data,info)
|
|
If(debug_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),&
|
|
& ' done cdcpy'
|
|
if(info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_cdcpy'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
if (debug_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),&
|
|
& 'Early return: P>=3 N_OVR=0'
|
|
endif
|
|
call blck%csall(izero,izero,info,ione)
|
|
else
|
|
|
|
If (psb_toupper(upd) == 'F') Then
|
|
!
|
|
! Build the auxiliary descriptor desc_p%matrix_data(psb_n_row_).
|
|
! This is done by psb_cdbldext (interface to psb_cdovr), which is
|
|
! independent of CSR, and has been placed in the tools directory
|
|
! of PSBLAS, instead of the mlprec directory of MLD2P4, because it
|
|
! might be used independently of the AS preconditioner, to build
|
|
! a descriptor for an extended stencil in a PDE solver.
|
|
!
|
|
call psb_cdbldext(a,desc_a,novr,sm%desc_data,info,extype=psb_ovt_asov_)
|
|
if(debug_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),&
|
|
& ' From cdbldext _:',sm%desc_data%get_local_rows(),&
|
|
& sm%desc_data%get_local_cols()
|
|
|
|
if (info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_cdbldext'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
Endif
|
|
|
|
if (debug_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),&
|
|
& 'Before sphalo '
|
|
|
|
!
|
|
! Retrieve the remote sparse matrix rows required for the AS extended
|
|
! matrix
|
|
data_ = psb_comm_ext_
|
|
Call psb_sphalo(a,sm%desc_data,blck,info,data=data_,rowscale=.true.)
|
|
|
|
if (info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='psb_sphalo'
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
|
|
if (debug_level >=psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),&
|
|
& 'After psb_sphalo ',&
|
|
& blck%get_nrows(), blck%get_nzeros()
|
|
|
|
End if
|
|
if (info == psb_success_) call sm%sv%build(a,sm%desc_data,upd,info,&
|
|
& blck,amold=amold,vmold=vmold)
|
|
|
|
nrow_a = a%get_nrows()
|
|
n_row = sm%desc_data%get_local_rows()
|
|
n_col = sm%desc_data%get_local_cols()
|
|
if (info == psb_success_) call a%csclip(sm%nd,info,&
|
|
& jmin=nrow_a+1,rscale=.false.,cscale=.false.)
|
|
if (info == psb_success_) call blck%csclip(atmp,info,&
|
|
& jmin=nrow_a+1,rscale=.false.,cscale=.false.)
|
|
if (info == psb_success_) call psb_rwextd(n_row,sm%nd,info,b=atmp)
|
|
|
|
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_)
|
|
end if
|
|
end if
|
|
if (info == psb_success_) then
|
|
if (present(imold)) then
|
|
call sm%desc_data%cnv(imold)
|
|
end if
|
|
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
|
|
nzeros = sm%nd%get_nzeros()
|
|
!!$ write(0,*) me,' ND nzeors ',nzeros
|
|
call psb_sum(ictxt,nzeros)
|
|
sm%nd_nnz_tot = nzeros
|
|
|
|
if (debug_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),' end'
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
|
|
return
|
|
end subroutine mld_d_as_smoother_bld
|