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.
375 lines
15 KiB
Fortran
375 lines
15 KiB
Fortran
!
|
|
!
|
|
! AMG4PSBLAS version 1.0
|
|
! Algebraic Multigrid Package
|
|
! based on PSBLAS (Parallel Sparse BLAS version 3.7)
|
|
!
|
|
! (C) Copyright 2021
|
|
!
|
|
! Salvatore Filippone
|
|
! Pasqua D'Ambra
|
|
! Daniela di Serafino
|
|
!
|
|
! 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 AMG4PSBLAS 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 AMG4PSBLAS 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: amg_s_poly_smoother_mod.f90
|
|
!
|
|
! Module: amg_s_poly_smoother_mod
|
|
!
|
|
! This module defines:
|
|
! the amg_s_poly_smoother_type data structure containing the
|
|
! smoother for a Jacobi/block Jacobi smoother.
|
|
! The smoother stores in ND the block off-diagonal matrix.
|
|
! One special case is treated separately, when the solver is DIAG or L1-DIAG
|
|
! then the ND is the entire off-diagonal part of the matrix (including the
|
|
! main diagonal block), so that it becomes possible to implement
|
|
! a pure Jacobi or L1-Jacobi global solver.
|
|
!
|
|
module amg_s_poly_smoother
|
|
use amg_s_base_smoother_mod
|
|
use amg_d_poly_coeff_mod
|
|
|
|
type, extends(amg_s_base_smoother_type) :: amg_s_poly_smoother_type
|
|
! The local solver component is inherited from the
|
|
! parent type.
|
|
! class(amg_s_base_solver_type), allocatable :: sv
|
|
!
|
|
integer(psb_ipk_) :: pdegree, variant
|
|
integer(psb_ipk_) :: rho_estimate=amg_poly_rho_est_power_
|
|
integer(psb_ipk_) :: rho_estimate_iterations=10
|
|
type(psb_sspmat_type), pointer :: pa => null()
|
|
real(psb_spk_), allocatable :: poly_beta(:)
|
|
real(psb_spk_) :: cf_a = szero
|
|
real(psb_spk_) :: rho_ba = -sone
|
|
contains
|
|
procedure, pass(sm) :: apply_v => amg_s_poly_smoother_apply_vect
|
|
!!$ procedure, pass(sm) :: apply_a => amg_s_poly_smoother_apply
|
|
procedure, pass(sm) :: dump => amg_s_poly_smoother_dmp
|
|
procedure, pass(sm) :: build => amg_s_poly_smoother_bld
|
|
procedure, pass(sm) :: cnv => amg_s_poly_smoother_cnv
|
|
procedure, pass(sm) :: clone => amg_s_poly_smoother_clone
|
|
procedure, pass(sm) :: clone_settings => amg_s_poly_smoother_clone_settings
|
|
procedure, pass(sm) :: clear_data => amg_s_poly_smoother_clear_data
|
|
procedure, pass(sm) :: free => s_poly_smoother_free
|
|
procedure, pass(sm) :: cseti => amg_s_poly_smoother_cseti
|
|
procedure, pass(sm) :: csetc => amg_s_poly_smoother_csetc
|
|
procedure, pass(sm) :: csetr => amg_s_poly_smoother_csetr
|
|
procedure, pass(sm) :: descr => amg_s_poly_smoother_descr
|
|
procedure, pass(sm) :: sizeof => s_poly_smoother_sizeof
|
|
procedure, pass(sm) :: default => s_poly_smoother_default
|
|
procedure, pass(sm) :: get_nzeros => s_poly_smoother_get_nzeros
|
|
procedure, pass(sm) :: get_wrksz => s_poly_smoother_get_wrksize
|
|
procedure, nopass :: get_fmt => s_poly_smoother_get_fmt
|
|
procedure, nopass :: get_id => s_poly_smoother_get_id
|
|
end type amg_s_poly_smoother_type
|
|
private :: s_poly_smoother_free, &
|
|
& s_poly_smoother_sizeof, s_poly_smoother_get_nzeros, &
|
|
& s_poly_smoother_get_fmt, s_poly_smoother_get_id, &
|
|
& s_poly_smoother_get_wrksize
|
|
|
|
|
|
interface
|
|
subroutine amg_s_poly_smoother_apply_vect(alpha,sm,x,beta,y,desc_data,trans,&
|
|
& sweeps,work,wv,info,init,initu)
|
|
import :: psb_desc_type, amg_s_poly_smoother_type, psb_s_vect_type, psb_spk_, &
|
|
& psb_sspmat_type, psb_s_base_sparse_mat, psb_s_base_vect_type,&
|
|
& psb_ipk_
|
|
|
|
type(psb_desc_type), intent(in) :: desc_data
|
|
class(amg_s_poly_smoother_type), intent(inout) :: sm
|
|
type(psb_s_vect_type),intent(inout) :: x
|
|
type(psb_s_vect_type),intent(inout) :: y
|
|
real(psb_spk_),intent(in) :: alpha,beta
|
|
character(len=1),intent(in) :: trans
|
|
integer(psb_ipk_), intent(in) :: sweeps
|
|
real(psb_spk_),target, intent(inout) :: work(:)
|
|
type(psb_s_vect_type),intent(inout) :: wv(:)
|
|
integer(psb_ipk_), intent(out) :: info
|
|
character, intent(in), optional :: init
|
|
type(psb_s_vect_type),intent(inout), optional :: initu
|
|
end subroutine amg_s_poly_smoother_apply_vect
|
|
end interface
|
|
|
|
!!$ interface
|
|
!!$ subroutine amg_s_poly_smoother_apply(alpha,sm,x,beta,y,desc_data,trans,&
|
|
!!$ & sweeps,work,info,init,initu)
|
|
!!$ import :: psb_desc_type, amg_s_poly_smoother_type, psb_s_vect_type, psb_spk_, &
|
|
!!$ & psb_sspmat_type, psb_s_base_sparse_mat, psb_s_base_vect_type, &
|
|
!!$ & psb_ipk_
|
|
!!$ type(psb_desc_type), intent(in) :: desc_data
|
|
!!$ class(amg_s_poly_smoother_type), intent(inout) :: sm
|
|
!!$ real(psb_spk_),intent(inout) :: x(:)
|
|
!!$ real(psb_spk_),intent(inout) :: y(:)
|
|
!!$ real(psb_spk_),intent(in) :: alpha,beta
|
|
!!$ character(len=1),intent(in) :: trans
|
|
!!$ integer(psb_ipk_), intent(in) :: sweeps
|
|
!!$ real(psb_spk_),target, intent(inout) :: work(:)
|
|
!!$ integer(psb_ipk_), intent(out) :: info
|
|
!!$ character, intent(in), optional :: init
|
|
!!$ real(psb_spk_),intent(inout), optional :: initu(:)
|
|
!!$ end subroutine amg_s_poly_smoother_apply
|
|
!!$ end interface
|
|
!!$
|
|
|
|
interface
|
|
subroutine amg_s_poly_smoother_bld(a,desc_a,sm,info,amold,vmold,imold)
|
|
import :: psb_desc_type, amg_s_poly_smoother_type, psb_s_vect_type, psb_spk_, &
|
|
& psb_sspmat_type, psb_s_base_sparse_mat, psb_s_base_vect_type,&
|
|
& psb_ipk_, psb_i_base_vect_type
|
|
type(psb_sspmat_type), intent(in), target :: a
|
|
Type(psb_desc_type), Intent(inout) :: desc_a
|
|
class(amg_s_poly_smoother_type), intent(inout) :: sm
|
|
integer(psb_ipk_), intent(out) :: info
|
|
class(psb_s_base_sparse_mat), intent(in), optional :: amold
|
|
class(psb_s_base_vect_type), intent(in), optional :: vmold
|
|
class(psb_i_base_vect_type), intent(in), optional :: imold
|
|
end subroutine amg_s_poly_smoother_bld
|
|
end interface
|
|
|
|
interface
|
|
subroutine amg_s_poly_smoother_cnv(sm,info,amold,vmold,imold)
|
|
import :: amg_s_poly_smoother_type, psb_spk_, &
|
|
& psb_s_base_sparse_mat, psb_s_base_vect_type,&
|
|
& psb_ipk_, psb_i_base_vect_type
|
|
class(amg_s_poly_smoother_type), intent(inout) :: sm
|
|
integer(psb_ipk_), intent(out) :: info
|
|
class(psb_s_base_sparse_mat), intent(in), optional :: amold
|
|
class(psb_s_base_vect_type), intent(in), optional :: vmold
|
|
class(psb_i_base_vect_type), intent(in), optional :: imold
|
|
end subroutine amg_s_poly_smoother_cnv
|
|
end interface
|
|
|
|
interface
|
|
subroutine amg_s_poly_smoother_dmp(sm,desc,level,info,prefix,head,smoother,solver,global_num)
|
|
import :: psb_sspmat_type, psb_s_vect_type, psb_s_base_vect_type, &
|
|
& psb_spk_, amg_s_poly_smoother_type, psb_epk_, psb_desc_type, &
|
|
& psb_ipk_
|
|
implicit none
|
|
class(amg_s_poly_smoother_type), intent(in) :: sm
|
|
type(psb_desc_type), intent(in) :: desc
|
|
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, global_num
|
|
end subroutine amg_s_poly_smoother_dmp
|
|
end interface
|
|
|
|
interface
|
|
subroutine amg_s_poly_smoother_clone(sm,smout,info)
|
|
import :: amg_s_poly_smoother_type, psb_spk_, &
|
|
& amg_s_base_smoother_type, psb_ipk_
|
|
class(amg_s_poly_smoother_type), intent(inout) :: sm
|
|
class(amg_s_base_smoother_type), allocatable, intent(inout) :: smout
|
|
integer(psb_ipk_), intent(out) :: info
|
|
end subroutine amg_s_poly_smoother_clone
|
|
end interface
|
|
|
|
interface
|
|
subroutine amg_s_poly_smoother_clone_settings(sm,smout,info)
|
|
import :: amg_s_poly_smoother_type, psb_spk_, &
|
|
& amg_s_base_smoother_type, psb_ipk_
|
|
class(amg_s_poly_smoother_type), intent(inout) :: sm
|
|
class(amg_s_base_smoother_type), allocatable, intent(inout) :: smout
|
|
integer(psb_ipk_), intent(out) :: info
|
|
end subroutine amg_s_poly_smoother_clone_settings
|
|
end interface
|
|
|
|
interface
|
|
subroutine amg_s_poly_smoother_clear_data(sm,info)
|
|
import :: amg_s_poly_smoother_type, psb_spk_, &
|
|
& amg_s_base_smoother_type, psb_ipk_
|
|
class(amg_s_poly_smoother_type), intent(inout) :: sm
|
|
integer(psb_ipk_), intent(out) :: info
|
|
end subroutine amg_s_poly_smoother_clear_data
|
|
end interface
|
|
|
|
interface
|
|
subroutine amg_s_poly_smoother_descr(sm,info,iout,coarse,prefix)
|
|
import :: amg_s_poly_smoother_type, psb_ipk_
|
|
class(amg_s_poly_smoother_type), intent(in) :: sm
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_), intent(in), optional :: iout
|
|
logical, intent(in), optional :: coarse
|
|
character(len=*), intent(in), optional :: prefix
|
|
end subroutine amg_s_poly_smoother_descr
|
|
end interface
|
|
|
|
interface
|
|
subroutine amg_s_poly_smoother_cseti(sm,what,val,info,idx)
|
|
import :: psb_sspmat_type, psb_s_vect_type, psb_s_base_vect_type, &
|
|
& psb_spk_, amg_s_poly_smoother_type, psb_epk_, psb_desc_type, psb_ipk_
|
|
implicit none
|
|
class(amg_s_poly_smoother_type), intent(inout) :: sm
|
|
character(len=*), intent(in) :: what
|
|
integer(psb_ipk_), intent(in) :: val
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_), intent(in), optional :: idx
|
|
end subroutine amg_s_poly_smoother_cseti
|
|
end interface
|
|
|
|
interface
|
|
subroutine amg_s_poly_smoother_csetc(sm,what,val,info,idx)
|
|
import :: psb_sspmat_type, psb_s_vect_type, psb_s_base_vect_type, &
|
|
& psb_spk_, amg_s_poly_smoother_type, psb_epk_, psb_desc_type, psb_ipk_
|
|
implicit none
|
|
class(amg_s_poly_smoother_type), intent(inout) :: sm
|
|
character(len=*), intent(in) :: what
|
|
character(len=*), intent(in) :: val
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_), intent(in), optional :: idx
|
|
end subroutine amg_s_poly_smoother_csetc
|
|
end interface
|
|
|
|
interface
|
|
subroutine amg_s_poly_smoother_csetr(sm,what,val,info,idx)
|
|
import :: psb_sspmat_type, psb_s_vect_type, psb_s_base_vect_type, &
|
|
& psb_spk_, amg_s_poly_smoother_type, psb_epk_, psb_desc_type, psb_ipk_
|
|
implicit none
|
|
class(amg_s_poly_smoother_type), intent(inout) :: sm
|
|
character(len=*), intent(in) :: what
|
|
real(psb_spk_), intent(in) :: val
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_), intent(in), optional :: idx
|
|
end subroutine amg_s_poly_smoother_csetr
|
|
end interface
|
|
|
|
|
|
contains
|
|
|
|
|
|
subroutine s_poly_smoother_free(sm,info)
|
|
|
|
|
|
Implicit None
|
|
|
|
! Arguments
|
|
class(amg_s_poly_smoother_type), intent(inout) :: sm
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_) :: err_act
|
|
character(len=20) :: name='s_poly_smoother_free'
|
|
|
|
call psb_erractionsave(err_act)
|
|
info = psb_success_
|
|
|
|
|
|
|
|
if (allocated(sm%sv)) then
|
|
call sm%sv%free(info)
|
|
if (info == psb_success_) deallocate(sm%sv,stat=info)
|
|
if (info /= psb_success_) then
|
|
info = psb_err_alloc_dealloc_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
end if
|
|
end if
|
|
if (allocated(sm%poly_beta)) deallocate(sm%poly_beta)
|
|
sm%pa => null()
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
return
|
|
end subroutine s_poly_smoother_free
|
|
|
|
function s_poly_smoother_sizeof(sm) result(val)
|
|
|
|
implicit none
|
|
! Arguments
|
|
class(amg_s_poly_smoother_type), intent(in) :: sm
|
|
integer(psb_epk_) :: val
|
|
|
|
val = psb_sizeof_dp
|
|
if (allocated(sm%sv)) val = val + sm%sv%sizeof()
|
|
if (allocated(sm%poly_beta)) val = val + psb_sizeof_dp * size(sm%poly_beta)
|
|
|
|
return
|
|
end function s_poly_smoother_sizeof
|
|
|
|
subroutine s_poly_smoother_default(sm)
|
|
|
|
Implicit None
|
|
|
|
! Arguments
|
|
class(amg_s_poly_smoother_type), intent(inout) :: sm
|
|
|
|
!
|
|
! Default: BJAC with no residual check
|
|
!
|
|
sm%pdegree = 1
|
|
sm%rho_ba = -sone
|
|
sm%variant = amg_poly_lottes_
|
|
sm%rho_estimate = amg_poly_rho_est_power_
|
|
sm%rho_estimate_iterations = 20
|
|
if (allocated(sm%sv)) then
|
|
call sm%sv%default()
|
|
end if
|
|
|
|
return
|
|
end subroutine s_poly_smoother_default
|
|
|
|
function s_poly_smoother_get_nzeros(sm) result(val)
|
|
|
|
implicit none
|
|
! Arguments
|
|
class(amg_s_poly_smoother_type), intent(in) :: sm
|
|
integer(psb_epk_) :: val
|
|
integer(psb_ipk_) :: i
|
|
|
|
val = 0
|
|
if (allocated(sm%sv)) val = val + sm%sv%get_nzeros()
|
|
|
|
return
|
|
end function s_poly_smoother_get_nzeros
|
|
|
|
function s_poly_smoother_get_wrksize(sm) result(val)
|
|
implicit none
|
|
class(amg_s_poly_smoother_type), intent(inout) :: sm
|
|
integer(psb_ipk_) :: val
|
|
|
|
val = 4
|
|
if (allocated(sm%sv)) val = val + sm%sv%get_wrksz()
|
|
|
|
end function s_poly_smoother_get_wrksize
|
|
|
|
function s_poly_smoother_get_fmt() result(val)
|
|
implicit none
|
|
character(len=32) :: val
|
|
|
|
val = "Polynomial smoother"
|
|
end function s_poly_smoother_get_fmt
|
|
|
|
function s_poly_smoother_get_id() result(val)
|
|
implicit none
|
|
integer(psb_ipk_) :: val
|
|
|
|
val = amg_poly_
|
|
end function s_poly_smoother_get_id
|
|
|
|
|
|
end module amg_s_poly_smoother
|