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.
469 lines
19 KiB
Fortran
469 lines
19 KiB
Fortran
!
|
|
!
|
|
! MLD2P4 version 2.1
|
|
! MultiLevel Domain Decomposition Parallel Preconditioners Package
|
|
! based on PSBLAS (Parallel Sparse BLAS version 3.4)
|
|
!
|
|
! (C) Copyright 2008, 2010, 2012, 2015, 2017
|
|
!
|
|
! Salvatore Filippone Cranfield University
|
|
! Ambra Abdullahi Hassan University of Rome Tor Vergata
|
|
! Alfredo Buttari CNRS-IRIT, Toulouse
|
|
! Pasqua D'Ambra ICAR-CNR, Naples
|
|
! Daniela di Serafino University of Campania "L. Vanvitelli", Caserta
|
|
!
|
|
! 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.
|
|
!
|
|
!
|
|
!
|
|
! File: mld_d_as_smoother_mod.f90
|
|
!
|
|
! Module: mld_d_as_smoother_mod
|
|
!
|
|
! This module defines:
|
|
! the mld_d_as_smoother_type data structure containing the
|
|
! smoother for an Additive Schwarz smoother.
|
|
!
|
|
! To begin with, the build procedure constructs the extended
|
|
! matrix A and its corresponding descriptor (this has multiple
|
|
! halo layers duplicated across different processes); it then
|
|
! stores in ND the block off-diagonal matrix, and builds the solver
|
|
! on the (extended) block diagonal matrix.
|
|
!
|
|
! The code allows for the variations of Additive Schwartz, Restricted
|
|
! Additive Schwartz and Additive Schwartz with Harmonic Extensions.
|
|
! From an implementation point of view, these are handled by
|
|
! combining application/non-application of the prolongator/restrictor
|
|
! operators.
|
|
!
|
|
module mld_d_as_smoother
|
|
|
|
use mld_d_base_smoother_mod
|
|
|
|
type, extends(mld_d_base_smoother_type) :: mld_d_as_smoother_type
|
|
! The local solver component is inherited from the
|
|
! parent type.
|
|
! class(mld_d_base_solver_type), allocatable :: sv
|
|
!
|
|
type(psb_dspmat_type) :: nd
|
|
type(psb_desc_type) :: desc_data
|
|
integer(psb_ipk_) :: novr, restr, prol, nd_nnz_tot
|
|
contains
|
|
procedure, pass(sm) :: check => mld_d_as_smoother_check
|
|
procedure, pass(sm) :: dump => mld_d_as_smoother_dmp
|
|
procedure, pass(sm) :: build => mld_d_as_smoother_bld
|
|
procedure, pass(sm) :: cnv => mld_d_as_smoother_cnv
|
|
procedure, pass(sm) :: clone => mld_d_as_smoother_clone
|
|
procedure, pass(sm) :: apply_v => mld_d_as_smoother_apply_vect
|
|
procedure, pass(sm) :: apply_a => mld_d_as_smoother_apply
|
|
procedure, pass(sm) :: restr_a => mld_d_as_smoother_restr_a
|
|
procedure, pass(sm) :: prol_a => mld_d_as_smoother_prol_a
|
|
procedure, pass(sm) :: restr_v => mld_d_as_smoother_restr_v
|
|
procedure, pass(sm) :: prol_v => mld_d_as_smoother_prol_v
|
|
generic, public :: apply_restr => restr_v, restr_a
|
|
generic, public :: apply_prol => prol_v, prol_a
|
|
procedure, pass(sm) :: free => mld_d_as_smoother_free
|
|
procedure, pass(sm) :: seti => mld_d_as_smoother_seti
|
|
procedure, pass(sm) :: setc => mld_d_as_smoother_setc
|
|
procedure, pass(sm) :: cseti => mld_d_as_smoother_cseti
|
|
procedure, pass(sm) :: csetc => mld_d_as_smoother_csetc
|
|
procedure, pass(sm) :: descr => d_as_smoother_descr
|
|
procedure, pass(sm) :: sizeof => d_as_smoother_sizeof
|
|
procedure, pass(sm) :: default => d_as_smoother_default
|
|
procedure, pass(sm) :: get_nzeros => d_as_smoother_get_nzeros
|
|
procedure, nopass :: get_fmt => d_as_smoother_get_fmt
|
|
end type mld_d_as_smoother_type
|
|
|
|
|
|
private :: d_as_smoother_descr, d_as_smoother_sizeof, &
|
|
& d_as_smoother_default, d_as_smoother_get_nzeros, &
|
|
& d_as_smoother_get_fmt
|
|
|
|
character(len=6), parameter, private :: &
|
|
& restrict_names(0:4)=(/'none ','halo ',' ',' ',' '/)
|
|
character(len=12), parameter, private :: &
|
|
& prolong_names(0:3)=(/'none ','sum ','average ','square root'/)
|
|
|
|
|
|
interface
|
|
subroutine mld_d_as_smoother_check(sm,info)
|
|
import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
|
|
& psb_dpk_, mld_d_as_smoother_type, psb_long_int_k_, psb_desc_type, psb_ipk_
|
|
implicit none
|
|
class(mld_d_as_smoother_type), intent(inout) :: sm
|
|
integer(psb_ipk_), intent(out) :: info
|
|
end subroutine mld_d_as_smoother_check
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_d_as_smoother_restr_v(sm,x,trans,work,info,data)
|
|
import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
|
|
& psb_dpk_, mld_d_as_smoother_type, psb_long_int_k_, &
|
|
& psb_desc_type, psb_ipk_
|
|
implicit none
|
|
class(mld_d_as_smoother_type), intent(inout) :: sm
|
|
type(psb_d_vect_type),intent(inout) :: x
|
|
character(len=1),intent(in) :: trans
|
|
real(psb_dpk_),target, intent(inout) :: work(:)
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_), optional, intent(in) :: data
|
|
end subroutine mld_d_as_smoother_restr_v
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_d_as_smoother_restr_a(sm,x,trans,work,info,data)
|
|
import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
|
|
& psb_dpk_, mld_d_as_smoother_type, psb_long_int_k_, &
|
|
& psb_desc_type, psb_ipk_
|
|
implicit none
|
|
class(mld_d_as_smoother_type), intent(inout) :: sm
|
|
real(psb_dpk_), intent(inout) :: x(:)
|
|
character(len=1),intent(in) :: trans
|
|
real(psb_dpk_),target, intent(inout) :: work(:)
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_), optional, intent(in) :: data
|
|
end subroutine mld_d_as_smoother_restr_a
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_d_as_smoother_prol_v(sm,x,trans,work,info,data)
|
|
import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
|
|
& psb_dpk_, mld_d_as_smoother_type, psb_long_int_k_, &
|
|
& psb_desc_type, psb_ipk_
|
|
implicit none
|
|
class(mld_d_as_smoother_type), intent(inout) :: sm
|
|
type(psb_d_vect_type),intent(inout) :: x
|
|
character(len=1),intent(in) :: trans
|
|
real(psb_dpk_),target, intent(inout) :: work(:)
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_), optional, intent(in) :: data
|
|
end subroutine mld_d_as_smoother_prol_v
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_d_as_smoother_prol_a(sm,x,trans,work,info,data)
|
|
import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
|
|
& psb_dpk_, mld_d_as_smoother_type, psb_long_int_k_, &
|
|
& psb_desc_type, psb_ipk_
|
|
implicit none
|
|
class(mld_d_as_smoother_type), intent(inout) :: sm
|
|
real(psb_dpk_), intent(inout) :: x(:)
|
|
character(len=1),intent(in) :: trans
|
|
real(psb_dpk_),target, intent(inout) :: work(:)
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_), optional, intent(in) :: data
|
|
end subroutine mld_d_as_smoother_prol_a
|
|
end interface
|
|
|
|
|
|
interface
|
|
subroutine mld_d_as_smoother_apply_vect(alpha,sm,x,beta,y,desc_data,&
|
|
& trans,sweeps,work,info,init,initu)
|
|
import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
|
|
& psb_dpk_, mld_d_as_smoother_type, psb_long_int_k_, &
|
|
& psb_desc_type, psb_ipk_
|
|
implicit none
|
|
type(psb_desc_type), intent(in) :: desc_data
|
|
class(mld_d_as_smoother_type), intent(inout) :: sm
|
|
type(psb_d_vect_type),intent(inout) :: x
|
|
type(psb_d_vect_type),intent(inout) :: y
|
|
real(psb_dpk_),intent(in) :: alpha,beta
|
|
character(len=1),intent(in) :: trans
|
|
integer(psb_ipk_), intent(in) :: sweeps
|
|
real(psb_dpk_),target, intent(inout) :: work(:)
|
|
integer(psb_ipk_), intent(out) :: info
|
|
character, intent(in), optional :: init
|
|
type(psb_d_vect_type),intent(inout), optional :: initu
|
|
end subroutine mld_d_as_smoother_apply_vect
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_d_as_smoother_apply(alpha,sm,x,beta,y,desc_data,&
|
|
& trans,sweeps,work,info,init,initu)
|
|
import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
|
|
& psb_dpk_, mld_d_as_smoother_type, psb_long_int_k_,&
|
|
& psb_desc_type, psb_ipk_
|
|
implicit none
|
|
type(psb_desc_type), intent(in) :: desc_data
|
|
class(mld_d_as_smoother_type), intent(inout) :: sm
|
|
real(psb_dpk_),intent(inout) :: x(:)
|
|
real(psb_dpk_),intent(inout) :: y(:)
|
|
real(psb_dpk_),intent(in) :: alpha,beta
|
|
character(len=1),intent(in) :: trans
|
|
integer(psb_ipk_), intent(in) :: sweeps
|
|
real(psb_dpk_),target, intent(inout) :: work(:)
|
|
integer(psb_ipk_), intent(out) :: info
|
|
character, intent(in), optional :: init
|
|
real(psb_dpk_),intent(inout), optional :: initu(:)
|
|
end subroutine mld_d_as_smoother_apply
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_d_as_smoother_bld(a,desc_a,sm,upd,info,amold,vmold,imold)
|
|
import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
|
|
& psb_dpk_, mld_d_as_smoother_type, psb_long_int_k_, &
|
|
& psb_desc_type, psb_d_base_sparse_mat, psb_ipk_,&
|
|
& psb_i_base_vect_type
|
|
implicit none
|
|
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
|
|
end subroutine mld_d_as_smoother_bld
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_d_as_smoother_cnv(sm,info,amold,vmold,imold)
|
|
import :: psb_d_base_vect_type, &
|
|
& psb_dpk_, mld_d_as_smoother_type, psb_long_int_k_, &
|
|
& psb_d_base_sparse_mat, psb_ipk_, psb_i_base_vect_type
|
|
implicit none
|
|
class(mld_d_as_smoother_type), intent(inout) :: sm
|
|
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
|
|
end subroutine mld_d_as_smoother_cnv
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_d_as_smoother_seti(sm,what,val,info)
|
|
import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
|
|
& psb_dpk_, mld_d_as_smoother_type, psb_long_int_k_, psb_desc_type, psb_ipk_
|
|
implicit none
|
|
class(mld_d_as_smoother_type), intent(inout) :: sm
|
|
integer(psb_ipk_), intent(in) :: what
|
|
integer(psb_ipk_), intent(in) :: val
|
|
integer(psb_ipk_), intent(out) :: info
|
|
end subroutine mld_d_as_smoother_seti
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_d_as_smoother_setc(sm,what,val,info)
|
|
import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
|
|
& psb_dpk_, mld_d_as_smoother_type, psb_long_int_k_, psb_desc_type, psb_ipk_
|
|
implicit none
|
|
class(mld_d_as_smoother_type), intent(inout) :: sm
|
|
integer(psb_ipk_), intent(in) :: what
|
|
character(len=*), intent(in) :: val
|
|
integer(psb_ipk_), intent(out) :: info
|
|
end subroutine mld_d_as_smoother_setc
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_d_as_smoother_setr(sm,what,val,info)
|
|
import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
|
|
& psb_dpk_, mld_d_as_smoother_type, psb_long_int_k_, psb_desc_type, psb_ipk_
|
|
implicit none
|
|
class(mld_d_as_smoother_type), intent(inout) :: sm
|
|
integer(psb_ipk_), intent(in) :: what
|
|
real(psb_dpk_), intent(in) :: val
|
|
integer(psb_ipk_), intent(out) :: info
|
|
end subroutine mld_d_as_smoother_setr
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_d_as_smoother_cseti(sm,what,val,info)
|
|
import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
|
|
& psb_dpk_, mld_d_as_smoother_type, psb_long_int_k_, psb_desc_type, psb_ipk_
|
|
implicit none
|
|
class(mld_d_as_smoother_type), intent(inout) :: sm
|
|
character(len=*), intent(in) :: what
|
|
integer(psb_ipk_), intent(in) :: val
|
|
integer(psb_ipk_), intent(out) :: info
|
|
end subroutine mld_d_as_smoother_cseti
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_d_as_smoother_csetc(sm,what,val,info)
|
|
import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
|
|
& psb_dpk_, mld_d_as_smoother_type, psb_long_int_k_, psb_desc_type, psb_ipk_
|
|
implicit none
|
|
class(mld_d_as_smoother_type), intent(inout) :: sm
|
|
character(len=*), intent(in) :: what
|
|
character(len=*), intent(in) :: val
|
|
integer(psb_ipk_), intent(out) :: info
|
|
end subroutine mld_d_as_smoother_csetc
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_d_as_smoother_csetr(sm,what,val,info)
|
|
import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
|
|
& psb_dpk_, mld_d_as_smoother_type, psb_long_int_k_, psb_desc_type, psb_ipk_
|
|
implicit none
|
|
class(mld_d_as_smoother_type), intent(inout) :: sm
|
|
character(len=*), intent(in) :: what
|
|
real(psb_dpk_), intent(in) :: val
|
|
integer(psb_ipk_), intent(out) :: info
|
|
end subroutine mld_d_as_smoother_csetr
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_d_as_smoother_free(sm,info)
|
|
import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
|
|
& psb_dpk_, mld_d_as_smoother_type, psb_long_int_k_, psb_desc_type, psb_ipk_
|
|
implicit none
|
|
class(mld_d_as_smoother_type), intent(inout) :: sm
|
|
integer(psb_ipk_), intent(out) :: info
|
|
end subroutine mld_d_as_smoother_free
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_d_as_smoother_dmp(sm,ictxt,level,info,prefix,head,smoother,solver)
|
|
import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
|
|
& psb_dpk_, mld_d_as_smoother_type, psb_long_int_k_, psb_desc_type, &
|
|
& psb_ipk_
|
|
implicit none
|
|
class(mld_d_as_smoother_type), intent(in) :: sm
|
|
integer(psb_ipk_), intent(in) :: ictxt
|
|
integer(psb_ipk_), intent(in) :: level
|
|
integer(psb_ipk_), intent(out) :: info
|
|
character(len=*), intent(in), optional :: prefix, head
|
|
logical, optional, intent(in) :: smoother, solver
|
|
end subroutine mld_d_as_smoother_dmp
|
|
end interface
|
|
|
|
interface
|
|
subroutine mld_d_as_smoother_clone(sm,smout,info)
|
|
import :: mld_d_as_smoother_type, psb_dpk_, &
|
|
& mld_d_base_smoother_type, psb_ipk_
|
|
class(mld_d_as_smoother_type), intent(inout) :: sm
|
|
class(mld_d_base_smoother_type), allocatable, intent(inout) :: smout
|
|
integer(psb_ipk_), intent(out) :: info
|
|
end subroutine mld_d_as_smoother_clone
|
|
end interface
|
|
|
|
contains
|
|
|
|
function d_as_smoother_sizeof(sm) result(val)
|
|
implicit none
|
|
! Arguments
|
|
class(mld_d_as_smoother_type), intent(in) :: sm
|
|
integer(psb_long_int_k_) :: val
|
|
integer(psb_ipk_) :: i
|
|
|
|
val = psb_sizeof_int
|
|
if (allocated(sm%sv)) val = val + sm%sv%sizeof()
|
|
val = val + sm%nd%sizeof()
|
|
|
|
return
|
|
end function d_as_smoother_sizeof
|
|
|
|
function d_as_smoother_get_nzeros(sm) result(val)
|
|
implicit none
|
|
class(mld_d_as_smoother_type), intent(in) :: sm
|
|
integer(psb_long_int_k_) :: val
|
|
integer(psb_ipk_) :: i
|
|
val = 0
|
|
if (allocated(sm%sv)) &
|
|
& val = sm%sv%get_nzeros()
|
|
val = val + sm%nd%get_nzeros()
|
|
|
|
end function d_as_smoother_get_nzeros
|
|
|
|
subroutine d_as_smoother_default(sm)
|
|
|
|
use psb_base_mod, only : psb_halo_, psb_none_
|
|
|
|
Implicit None
|
|
|
|
! Arguments
|
|
class(mld_d_as_smoother_type), intent(inout) :: sm
|
|
|
|
|
|
sm%restr = psb_halo_
|
|
sm%prol = psb_none_
|
|
sm%novr = 1
|
|
|
|
|
|
if (allocated(sm%sv)) then
|
|
call sm%sv%default()
|
|
end if
|
|
|
|
return
|
|
end subroutine d_as_smoother_default
|
|
|
|
|
|
subroutine d_as_smoother_descr(sm,info,iout,coarse)
|
|
|
|
Implicit None
|
|
|
|
! Arguments
|
|
class(mld_d_as_smoother_type), intent(in) :: sm
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_), intent(in), optional :: iout
|
|
logical, intent(in), optional :: coarse
|
|
|
|
! Local variables
|
|
integer(psb_ipk_) :: err_act
|
|
character(len=20), parameter :: name='mld_d_as_smoother_descr'
|
|
integer(psb_ipk_) :: iout_
|
|
logical :: coarse_
|
|
|
|
call psb_erractionsave(err_act)
|
|
info = psb_success_
|
|
if (present(coarse)) then
|
|
coarse_ = coarse
|
|
else
|
|
coarse_ = .false.
|
|
end if
|
|
if (present(iout)) then
|
|
iout_ = iout
|
|
else
|
|
iout_ = 6
|
|
endif
|
|
|
|
if (.not.coarse_) then
|
|
write(iout_,*) ' Additive Schwarz with ',&
|
|
& sm%novr, ' overlap layers.'
|
|
write(iout_,*) ' Restrictor: ',restrict_names(sm%restr)
|
|
write(iout_,*) ' Prolongator: ',prolong_names(sm%prol)
|
|
write(iout_,*) ' Local solver:'
|
|
endif
|
|
if (allocated(sm%sv)) then
|
|
call sm%sv%descr(info,iout_,coarse=coarse)
|
|
end if
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
return
|
|
|
|
end subroutine d_as_smoother_descr
|
|
|
|
function d_as_smoother_get_fmt() result(val)
|
|
implicit none
|
|
character(len=32) :: val
|
|
|
|
val = "Schwarz smoother"
|
|
end function d_as_smoother_get_fmt
|
|
|
|
end module mld_d_as_smoother
|