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457 lines
18 KiB
Fortran
457 lines
18 KiB
Fortran
!
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!
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! AMG4PSBLAS version 1.0
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! Algebraic Multigrid Package
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! based on PSBLAS (Parallel Sparse BLAS version 3.7)
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!
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! (C) Copyright 2021
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!
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! Salvatore Filippone
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! Pasqua D'Ambra
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! Daniela di Serafino
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions
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! are met:
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! 1. Redistributions of source code must retain the above copyright
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! notice, this list of conditions and the following disclaimer.
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! 2. Redistributions in binary form must reproduce the above copyright
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! notice, this list of conditions, and the following disclaimer in the
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! documentation and/or other materials provided with the distribution.
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! 3. The name of the AMG4PSBLAS group or the names of its contributors may
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! not be used to endorse or promote products derived from this
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! software without specific written permission.
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!
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! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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! ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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! TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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! PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AMG4PSBLAS GROUP OR ITS CONTRIBUTORS
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! BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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! POSSIBILITY OF SUCH DAMAGE.
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!
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!
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!
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! File: amg_d_jac_smoother_mod.f90
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!
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! Module: amg_d_jac_smoother_mod
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!
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! This module defines:
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! the amg_d_jac_smoother_type data structure containing the
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! smoother for a Jacobi/block Jacobi smoother.
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! The smoother stores in ND the block off-diagonal matrix.
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! One special case is treated separately, when the solver is DIAG or L1-DIAG
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! then the ND is the entire off-diagonal part of the matrix (including the
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! main diagonal block), so that it becomes possible to implement
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! a pure Jacobi or L1-Jacobi global solver.
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!
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module amg_d_jac_smoother
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use amg_d_base_smoother_mod
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type, extends(amg_d_base_smoother_type) :: amg_d_jac_smoother_type
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! The local solver component is inherited from the
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! parent type.
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! class(amg_d_base_solver_type), allocatable :: sv
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!
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type(psb_dspmat_type), pointer :: pa => null()
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type(psb_dspmat_type) :: nd
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integer(psb_lpk_) :: nd_nnz_tot
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logical :: checkres
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logical :: printres
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integer(psb_ipk_) :: checkiter
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integer(psb_ipk_) :: printiter
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real(psb_dpk_) :: tol
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contains
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procedure, pass(sm) :: apply_v => amg_d_jac_smoother_apply_vect
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procedure, pass(sm) :: apply_a => amg_d_jac_smoother_apply
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procedure, pass(sm) :: dump => amg_d_jac_smoother_dmp
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procedure, pass(sm) :: build => amg_d_jac_smoother_bld
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procedure, pass(sm) :: cnv => amg_d_jac_smoother_cnv
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procedure, pass(sm) :: clone => amg_d_jac_smoother_clone
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procedure, pass(sm) :: clone_settings => amg_d_jac_smoother_clone_settings
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procedure, pass(sm) :: clear_data => amg_d_jac_smoother_clear_data
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procedure, pass(sm) :: free => d_jac_smoother_free
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procedure, pass(sm) :: cseti => amg_d_jac_smoother_cseti
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procedure, pass(sm) :: csetc => amg_d_jac_smoother_csetc
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procedure, pass(sm) :: csetr => amg_d_jac_smoother_csetr
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procedure, pass(sm) :: descr => amg_d_jac_smoother_descr
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procedure, pass(sm) :: sizeof => d_jac_smoother_sizeof
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procedure, pass(sm) :: default => d_jac_smoother_default
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procedure, pass(sm) :: get_nzeros => d_jac_smoother_get_nzeros
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procedure, pass(sm) :: get_wrksz => d_jac_smoother_get_wrksize
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procedure, nopass :: get_fmt => d_jac_smoother_get_fmt
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procedure, nopass :: get_id => d_jac_smoother_get_id
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end type amg_d_jac_smoother_type
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type, extends(amg_d_jac_smoother_type) :: amg_d_l1_jac_smoother_type
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contains
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procedure, pass(sm) :: build => amg_d_l1_jac_smoother_bld
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procedure, pass(sm) :: clone => amg_d_l1_jac_smoother_clone
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procedure, pass(sm) :: descr => amg_d_l1_jac_smoother_descr
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procedure, nopass :: get_fmt => d_l1_jac_smoother_get_fmt
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procedure, nopass :: get_id => d_l1_jac_smoother_get_id
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end type amg_d_l1_jac_smoother_type
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private :: d_jac_smoother_free, &
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& d_jac_smoother_sizeof, d_jac_smoother_get_nzeros, &
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& d_jac_smoother_get_fmt, d_jac_smoother_get_id, &
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& d_jac_smoother_get_wrksize
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private :: d_l1_jac_smoother_get_fmt, d_l1_jac_smoother_get_id
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interface
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subroutine amg_d_jac_smoother_apply_vect(alpha,sm,x,beta,y,desc_data,trans,&
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& sweeps,work,wv,info,init,initu)
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import :: psb_desc_type, amg_d_jac_smoother_type, psb_d_vect_type, psb_dpk_, &
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& psb_dspmat_type, psb_d_base_sparse_mat, psb_d_base_vect_type,&
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& psb_ipk_
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type(psb_desc_type), intent(in) :: desc_data
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class(amg_d_jac_smoother_type), intent(inout) :: sm
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type(psb_d_vect_type),intent(inout) :: x
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type(psb_d_vect_type),intent(inout) :: y
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real(psb_dpk_),intent(in) :: alpha,beta
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character(len=1),intent(in) :: trans
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integer(psb_ipk_), intent(in) :: sweeps
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real(psb_dpk_),target, intent(inout) :: work(:)
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type(psb_d_vect_type),intent(inout) :: wv(:)
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integer(psb_ipk_), intent(out) :: info
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character, intent(in), optional :: init
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type(psb_d_vect_type),intent(inout), optional :: initu
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end subroutine amg_d_jac_smoother_apply_vect
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end interface
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interface
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subroutine amg_d_jac_smoother_apply(alpha,sm,x,beta,y,desc_data,trans,&
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& sweeps,work,info,init,initu)
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import :: psb_desc_type, amg_d_jac_smoother_type, psb_d_vect_type, psb_dpk_, &
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& psb_dspmat_type, psb_d_base_sparse_mat, psb_d_base_vect_type, &
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& psb_ipk_
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type(psb_desc_type), intent(in) :: desc_data
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class(amg_d_jac_smoother_type), intent(inout) :: sm
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real(psb_dpk_),intent(inout) :: x(:)
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real(psb_dpk_),intent(inout) :: y(:)
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real(psb_dpk_),intent(in) :: alpha,beta
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character(len=1),intent(in) :: trans
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integer(psb_ipk_), intent(in) :: sweeps
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real(psb_dpk_),target, intent(inout) :: work(:)
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integer(psb_ipk_), intent(out) :: info
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character, intent(in), optional :: init
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real(psb_dpk_),intent(inout), optional :: initu(:)
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end subroutine amg_d_jac_smoother_apply
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end interface
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interface
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subroutine amg_d_jac_smoother_bld(a,desc_a,sm,info,amold,vmold,imold)
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import :: psb_desc_type, amg_d_jac_smoother_type, psb_d_vect_type, psb_dpk_, &
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& psb_dspmat_type, psb_d_base_sparse_mat, psb_d_base_vect_type,&
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& psb_ipk_, psb_i_base_vect_type
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type(psb_dspmat_type), intent(in), target :: a
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Type(psb_desc_type), Intent(inout) :: desc_a
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class(amg_d_jac_smoother_type), intent(inout) :: sm
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integer(psb_ipk_), intent(out) :: info
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class(psb_d_base_sparse_mat), intent(in), optional :: amold
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class(psb_d_base_vect_type), intent(in), optional :: vmold
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class(psb_i_base_vect_type), intent(in), optional :: imold
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end subroutine amg_d_jac_smoother_bld
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end interface
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interface
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subroutine amg_d_jac_smoother_cnv(sm,info,amold,vmold,imold)
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import :: amg_d_jac_smoother_type, psb_dpk_, &
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& psb_d_base_sparse_mat, psb_d_base_vect_type,&
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& psb_ipk_, psb_i_base_vect_type
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class(amg_d_jac_smoother_type), intent(inout) :: sm
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integer(psb_ipk_), intent(out) :: info
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class(psb_d_base_sparse_mat), intent(in), optional :: amold
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class(psb_d_base_vect_type), intent(in), optional :: vmold
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class(psb_i_base_vect_type), intent(in), optional :: imold
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end subroutine amg_d_jac_smoother_cnv
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end interface
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interface
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subroutine amg_d_jac_smoother_dmp(sm,desc,level,info,prefix,head,smoother,solver,global_num)
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import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
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& psb_dpk_, amg_d_jac_smoother_type, psb_epk_, psb_desc_type, &
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& psb_ipk_
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implicit none
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class(amg_d_jac_smoother_type), intent(in) :: sm
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type(psb_desc_type), intent(in) :: desc
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integer(psb_ipk_), intent(in) :: level
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integer(psb_ipk_), intent(out) :: info
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character(len=*), intent(in), optional :: prefix, head
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logical, optional, intent(in) :: smoother, solver, global_num
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end subroutine amg_d_jac_smoother_dmp
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end interface
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interface
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subroutine amg_d_jac_smoother_clone(sm,smout,info)
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import :: amg_d_jac_smoother_type, psb_dpk_, &
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& amg_d_base_smoother_type, psb_ipk_
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class(amg_d_jac_smoother_type), intent(inout) :: sm
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class(amg_d_base_smoother_type), allocatable, intent(inout) :: smout
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integer(psb_ipk_), intent(out) :: info
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end subroutine amg_d_jac_smoother_clone
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end interface
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interface
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subroutine amg_d_jac_smoother_clone_settings(sm,smout,info)
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import :: amg_d_jac_smoother_type, psb_dpk_, &
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& amg_d_base_smoother_type, psb_ipk_
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class(amg_d_jac_smoother_type), intent(inout) :: sm
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class(amg_d_base_smoother_type), allocatable, intent(inout) :: smout
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integer(psb_ipk_), intent(out) :: info
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end subroutine amg_d_jac_smoother_clone_settings
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end interface
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interface
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subroutine amg_d_jac_smoother_clear_data(sm,info)
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import :: amg_d_jac_smoother_type, psb_dpk_, &
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& amg_d_base_smoother_type, psb_ipk_
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class(amg_d_jac_smoother_type), intent(inout) :: sm
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integer(psb_ipk_), intent(out) :: info
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end subroutine amg_d_jac_smoother_clear_data
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end interface
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interface
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subroutine amg_d_jac_smoother_descr(sm,info,iout,coarse,prefix)
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import :: amg_d_jac_smoother_type, psb_ipk_
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class(amg_d_jac_smoother_type), intent(in) :: sm
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_), intent(in), optional :: iout
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logical, intent(in), optional :: coarse
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character(len=*), intent(in), optional :: prefix
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end subroutine amg_d_jac_smoother_descr
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end interface
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interface
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subroutine amg_d_jac_smoother_cseti(sm,what,val,info,idx)
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import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
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& psb_dpk_, amg_d_jac_smoother_type, psb_epk_, psb_desc_type, psb_ipk_
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implicit none
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class(amg_d_jac_smoother_type), intent(inout) :: sm
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character(len=*), intent(in) :: what
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integer(psb_ipk_), intent(in) :: val
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_), intent(in), optional :: idx
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end subroutine amg_d_jac_smoother_cseti
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end interface
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interface
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subroutine amg_d_jac_smoother_csetc(sm,what,val,info,idx)
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import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
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& psb_dpk_, amg_d_jac_smoother_type, psb_epk_, psb_desc_type, psb_ipk_
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implicit none
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class(amg_d_jac_smoother_type), intent(inout) :: sm
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character(len=*), intent(in) :: what
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character(len=*), intent(in) :: val
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_), intent(in), optional :: idx
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end subroutine amg_d_jac_smoother_csetc
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end interface
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interface
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subroutine amg_d_jac_smoother_csetr(sm,what,val,info,idx)
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import :: psb_dspmat_type, psb_d_vect_type, psb_d_base_vect_type, &
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& psb_dpk_, amg_d_jac_smoother_type, psb_epk_, psb_desc_type, psb_ipk_
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implicit none
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class(amg_d_jac_smoother_type), intent(inout) :: sm
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character(len=*), intent(in) :: what
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real(psb_dpk_), intent(in) :: val
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_), intent(in), optional :: idx
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end subroutine amg_d_jac_smoother_csetr
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end interface
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interface
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subroutine amg_d_l1_jac_smoother_bld(a,desc_a,sm,info,amold,vmold,imold)
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import :: psb_desc_type, amg_d_l1_jac_smoother_type, psb_d_vect_type, &
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& psb_dspmat_type, psb_d_base_sparse_mat, psb_d_base_vect_type,&
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& psb_ipk_, psb_i_base_vect_type
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type(psb_dspmat_type), intent(in), target :: a
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Type(psb_desc_type), Intent(inout) :: desc_a
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class(amg_d_l1_jac_smoother_type), intent(inout) :: sm
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integer(psb_ipk_), intent(out) :: info
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class(psb_d_base_sparse_mat), intent(in), optional :: amold
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class(psb_d_base_vect_type), intent(in), optional :: vmold
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class(psb_i_base_vect_type), intent(in), optional :: imold
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end subroutine amg_d_l1_jac_smoother_bld
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end interface
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interface
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subroutine amg_d_l1_jac_smoother_clone(sm,smout,info)
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import :: amg_d_l1_jac_smoother_type, &
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& amg_d_base_smoother_type, psb_ipk_
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class(amg_d_l1_jac_smoother_type), intent(inout) :: sm
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class(amg_d_base_smoother_type), allocatable, intent(inout) :: smout
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integer(psb_ipk_), intent(out) :: info
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end subroutine amg_d_l1_jac_smoother_clone
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end interface
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interface
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subroutine amg_d_l1_jac_smoother_clone_settings(sm,smout,info)
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import :: amg_d_l1_jac_smoother_type, &
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& amg_d_base_smoother_type, psb_ipk_
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class(amg_d_l1_jac_smoother_type), intent(inout) :: sm
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class(amg_d_base_smoother_type), allocatable, intent(inout) :: smout
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integer(psb_ipk_), intent(out) :: info
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end subroutine amg_d_l1_jac_smoother_clone_settings
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end interface
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interface
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subroutine amg_d_l1_jac_smoother_clear_data(sm,info)
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import :: amg_d_l1_jac_smoother_type, &
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& amg_d_base_smoother_type, psb_ipk_
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class(amg_d_l1_jac_smoother_type), intent(inout) :: sm
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integer(psb_ipk_), intent(out) :: info
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end subroutine amg_d_l1_jac_smoother_clear_data
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end interface
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interface
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subroutine amg_d_l1_jac_smoother_descr(sm,info,iout,coarse,prefix)
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import :: amg_d_l1_jac_smoother_type, psb_ipk_
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class(amg_d_l1_jac_smoother_type), intent(in) :: sm
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_), intent(in), optional :: iout
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logical, intent(in), optional :: coarse
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character(len=*), intent(in), optional :: prefix
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end subroutine amg_d_l1_jac_smoother_descr
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end interface
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contains
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subroutine d_jac_smoother_free(sm,info)
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Implicit None
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! Arguments
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class(amg_d_jac_smoother_type), intent(inout) :: sm
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_) :: err_act
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character(len=20) :: name='d_jac_smoother_free'
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call psb_erractionsave(err_act)
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info = psb_success_
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if (allocated(sm%sv)) then
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call sm%sv%free(info)
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if (info == psb_success_) deallocate(sm%sv,stat=info)
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if (info /= psb_success_) then
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info = psb_err_alloc_dealloc_
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call psb_errpush(info,name)
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goto 9999
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end if
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end if
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call sm%nd%free()
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sm%pa => null()
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call psb_erractionrestore(err_act)
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return
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9999 call psb_error_handler(err_act)
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return
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end subroutine d_jac_smoother_free
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function d_jac_smoother_sizeof(sm) result(val)
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implicit none
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! Arguments
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class(amg_d_jac_smoother_type), intent(in) :: sm
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integer(psb_epk_) :: val
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integer(psb_ipk_) :: i
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val = psb_sizeof_lp
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if (allocated(sm%sv)) val = val + sm%sv%sizeof()
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val = val + sm%nd%sizeof()
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return
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end function d_jac_smoother_sizeof
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subroutine d_jac_smoother_default(sm)
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Implicit None
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! Arguments
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class(amg_d_jac_smoother_type), intent(inout) :: sm
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!
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! Default: BJAC with no residual check
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!
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sm%checkres = .false.
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sm%printres = .false.
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sm%checkiter = -1
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sm%printiter = -1
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sm%tol = 0
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|
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if (allocated(sm%sv)) then
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call sm%sv%default()
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end if
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return
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end subroutine d_jac_smoother_default
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function d_jac_smoother_get_nzeros(sm) result(val)
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|
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implicit none
|
|
! Arguments
|
|
class(amg_d_jac_smoother_type), intent(in) :: sm
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|
integer(psb_epk_) :: val
|
|
integer(psb_ipk_) :: i
|
|
|
|
val = 0
|
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if (allocated(sm%sv)) val = val + sm%sv%get_nzeros()
|
|
val = val + sm%nd%get_nzeros()
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|
|
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return
|
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end function d_jac_smoother_get_nzeros
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function d_jac_smoother_get_wrksize(sm) result(val)
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implicit none
|
|
class(amg_d_jac_smoother_type), intent(inout) :: sm
|
|
integer(psb_ipk_) :: val
|
|
|
|
val = 2
|
|
if (allocated(sm%sv)) val = val + sm%sv%get_wrksz()
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|
|
|
end function d_jac_smoother_get_wrksize
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|
|
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function d_jac_smoother_get_fmt() result(val)
|
|
implicit none
|
|
character(len=32) :: val
|
|
|
|
val = "Jacobi smoother"
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|
end function d_jac_smoother_get_fmt
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|
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function d_jac_smoother_get_id() result(val)
|
|
implicit none
|
|
integer(psb_ipk_) :: val
|
|
|
|
val = amg_jac_
|
|
end function d_jac_smoother_get_id
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|
|
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function d_l1_jac_smoother_get_fmt() result(val)
|
|
implicit none
|
|
character(len=32) :: val
|
|
|
|
val = "L1-Jacobi smoother"
|
|
end function d_l1_jac_smoother_get_fmt
|
|
|
|
function d_l1_jac_smoother_get_id() result(val)
|
|
implicit none
|
|
integer(psb_ipk_) :: val
|
|
|
|
val = amg_l1_jac_
|
|
end function d_l1_jac_smoother_get_id
|
|
|
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end module amg_d_jac_smoother
|