! ! ! MLD2P4 version 2.1 ! MultiLevel Domain Decomposition Parallel Preconditioners Package ! based on PSBLAS (Parallel Sparse BLAS version 3.5) ! ! (C) Copyright 2008, 2010, 2012, 2015, 2017 ! ! Salvatore Filippone Cranfield University, UK ! Pasqua D'Ambra IAC-CNR, Naples, IT ! Daniela di Serafino University of Campania "L. Vanvitelli", Caserta, IT ! ! 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_base_solver_mod.f90 ! ! Module: mld_d_base_solver_mod ! ! This module defines: ! - the mld_d_base_solver_type data structure containing the ! basic solver type acting on a subdomain ! ! It contains routines for ! - Building and applying; ! - checking if the solver is correctly defined; ! - printing a description of the solver; ! - deallocating the data structure. ! module mld_d_base_solver_mod use mld_base_prec_type use psb_base_mod, only : psb_dspmat_type, & & psb_d_vect_type, psb_d_base_vect_type, psb_d_base_sparse_mat, & & psb_dpk_, psb_i_base_vect_type, psb_erractionsave, psb_error_handler ! ! ! Type: mld_T_base_solver_type. ! ! It holds the local solver; it has no mandatory components. ! ! type mld_T_base_solver_type ! end type mld_T_base_solver_type ! ! build - Compute the actual contents of the smoother; includes ! invocation of the build method on the solver component. ! free - Release memory ! apply - Apply the smoother to a vector (or to an array); includes ! invocation of the apply method on the solver component. ! descr - Prints a description of the object. ! default - Set default values ! dump - Dump to file object contents ! set - Sets various parameters; when a request is unknown ! it is passed to the smoother object for further processing. ! check - Sanity checks. ! sizeof - Total memory occupation in bytes ! get_nzeros - Number of nonzeros ! ! ! type mld_d_base_solver_type contains procedure, pass(sv) :: check => mld_d_base_solver_check procedure, pass(sv) :: dump => mld_d_base_solver_dmp procedure, pass(sv) :: clone => mld_d_base_solver_clone procedure, pass(sv) :: build => mld_d_base_solver_bld procedure, pass(sv) :: cnv => mld_d_base_solver_cnv procedure, pass(sv) :: apply_v => mld_d_base_solver_apply_vect procedure, pass(sv) :: apply_a => mld_d_base_solver_apply generic, public :: apply => apply_a, apply_v procedure, pass(sv) :: free => mld_d_base_solver_free procedure, pass(sv) :: seti => mld_d_base_solver_seti procedure, pass(sv) :: setc => mld_d_base_solver_setc procedure, pass(sv) :: setr => mld_d_base_solver_setr procedure, pass(sv) :: cseti => mld_d_base_solver_cseti procedure, pass(sv) :: csetc => mld_d_base_solver_csetc procedure, pass(sv) :: csetr => mld_d_base_solver_csetr generic, public :: set => seti, setc, setr, cseti, csetc, csetr procedure, pass(sv) :: default => d_base_solver_default procedure, pass(sv) :: descr => mld_d_base_solver_descr procedure, pass(sv) :: sizeof => d_base_solver_sizeof procedure, pass(sv) :: get_nzeros => d_base_solver_get_nzeros procedure, nopass :: stringval => mld_stringval procedure, nopass :: get_fmt => d_base_solver_get_fmt procedure, nopass :: get_id => d_base_solver_get_id procedure, nopass :: is_iterative => d_base_solver_is_iterative end type mld_d_base_solver_type private :: d_base_solver_sizeof, d_base_solver_default,& & d_base_solver_get_nzeros, d_base_solver_get_fmt, & & d_base_solver_is_iterative, d_base_solver_get_id interface subroutine mld_d_base_solver_apply(alpha,sv,x,beta,y,desc_data,& & trans,work,info,init,initu) import :: psb_desc_type, psb_dspmat_type, psb_d_base_sparse_mat, & & psb_d_vect_type, psb_d_base_vect_type, psb_dpk_, & & mld_d_base_solver_type, psb_ipk_ implicit none type(psb_desc_type), intent(in) :: desc_data class(mld_d_base_solver_type), intent(inout) :: sv 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 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_base_solver_apply end interface interface subroutine mld_d_base_solver_apply_vect(alpha,sv,x,beta,y,desc_data,& & trans,work,info,init,initu) import :: psb_desc_type, psb_dspmat_type, psb_d_base_sparse_mat, & & psb_d_vect_type, psb_d_base_vect_type, psb_dpk_, & & mld_d_base_solver_type, psb_ipk_ implicit none type(psb_desc_type), intent(in) :: desc_data class(mld_d_base_solver_type), intent(inout) :: sv 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 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_base_solver_apply_vect end interface interface subroutine mld_d_base_solver_bld(a,desc_a,sv,info,b,amold,vmold,imold) import :: psb_desc_type, psb_dspmat_type, psb_d_base_sparse_mat, & & psb_d_vect_type, psb_d_base_vect_type, psb_dpk_, & & mld_d_base_solver_type, psb_ipk_, psb_i_base_vect_type Implicit None ! Arguments type(psb_dspmat_type), intent(in), target :: a Type(psb_desc_type), Intent(in) :: desc_a class(mld_d_base_solver_type), intent(inout) :: sv integer(psb_ipk_), intent(out) :: info type(psb_dspmat_type), intent(in), target, optional :: b 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_base_solver_bld end interface interface subroutine mld_d_base_solver_cnv(sv,info,amold,vmold,imold) import :: psb_d_base_sparse_mat, psb_d_base_vect_type, psb_dpk_, & & mld_d_base_solver_type, psb_ipk_, psb_i_base_vect_type Implicit None ! Arguments class(mld_d_base_solver_type), intent(inout) :: sv 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_base_solver_cnv end interface interface subroutine mld_d_base_solver_check(sv,info) import :: psb_desc_type, psb_dspmat_type, psb_d_base_sparse_mat, & & psb_d_vect_type, psb_d_base_vect_type, psb_dpk_, & & mld_d_base_solver_type, psb_ipk_ Implicit None ! Arguments class(mld_d_base_solver_type), intent(inout) :: sv integer(psb_ipk_), intent(out) :: info end subroutine mld_d_base_solver_check end interface interface subroutine mld_d_base_solver_seti(sv,what,val,info) import :: psb_desc_type, psb_dspmat_type, psb_d_base_sparse_mat, & & psb_d_vect_type, psb_d_base_vect_type, psb_dpk_, & & mld_d_base_solver_type, psb_ipk_ Implicit None ! Arguments class(mld_d_base_solver_type), intent(inout) :: sv integer(psb_ipk_), intent(in) :: what integer(psb_ipk_), intent(in) :: val integer(psb_ipk_), intent(out) :: info end subroutine mld_d_base_solver_seti end interface interface subroutine mld_d_base_solver_setc(sv,what,val,info) import :: psb_desc_type, psb_dspmat_type, psb_d_base_sparse_mat, & & psb_d_vect_type, psb_d_base_vect_type, psb_dpk_, & & mld_d_base_solver_type, psb_ipk_ Implicit None ! Arguments class(mld_d_base_solver_type), intent(inout) :: sv integer(psb_ipk_), intent(in) :: what character(len=*), intent(in) :: val integer(psb_ipk_), intent(out) :: info end subroutine mld_d_base_solver_setc end interface interface subroutine mld_d_base_solver_setr(sv,what,val,info) import :: psb_desc_type, psb_dspmat_type, psb_d_base_sparse_mat, & & psb_d_vect_type, psb_d_base_vect_type, psb_dpk_, & & mld_d_base_solver_type, psb_ipk_ Implicit None ! Arguments class(mld_d_base_solver_type), intent(inout) :: sv integer(psb_ipk_), intent(in) :: what real(psb_dpk_), intent(in) :: val integer(psb_ipk_), intent(out) :: info end subroutine mld_d_base_solver_setr end interface interface subroutine mld_d_base_solver_cseti(sv,what,val,info) import :: psb_desc_type, psb_dspmat_type, psb_d_base_sparse_mat, & & psb_d_vect_type, psb_d_base_vect_type, psb_dpk_, & & mld_d_base_solver_type, psb_ipk_ Implicit None ! Arguments class(mld_d_base_solver_type), intent(inout) :: sv character(len=*), intent(in) :: what integer(psb_ipk_), intent(in) :: val integer(psb_ipk_), intent(out) :: info end subroutine mld_d_base_solver_cseti end interface interface subroutine mld_d_base_solver_csetc(sv,what,val,info) import :: psb_desc_type, psb_dspmat_type, psb_d_base_sparse_mat, & & psb_d_vect_type, psb_d_base_vect_type, psb_dpk_, & & mld_d_base_solver_type, psb_ipk_ Implicit None ! Arguments class(mld_d_base_solver_type), intent(inout) :: sv character(len=*), intent(in) :: what character(len=*), intent(in) :: val integer(psb_ipk_), intent(out) :: info end subroutine mld_d_base_solver_csetc end interface interface subroutine mld_d_base_solver_csetr(sv,what,val,info) import :: psb_desc_type, psb_dspmat_type, psb_d_base_sparse_mat, & & psb_d_vect_type, psb_d_base_vect_type, psb_dpk_, & & mld_d_base_solver_type, psb_ipk_ Implicit None ! Arguments class(mld_d_base_solver_type), intent(inout) :: sv character(len=*), intent(in) :: what real(psb_dpk_), intent(in) :: val integer(psb_ipk_), intent(out) :: info end subroutine mld_d_base_solver_csetr end interface interface subroutine mld_d_base_solver_free(sv,info) import :: psb_desc_type, psb_dspmat_type, psb_d_base_sparse_mat, & & psb_d_vect_type, psb_d_base_vect_type, psb_dpk_, & & mld_d_base_solver_type, psb_ipk_ Implicit None ! Arguments class(mld_d_base_solver_type), intent(inout) :: sv integer(psb_ipk_), intent(out) :: info end subroutine mld_d_base_solver_free end interface interface subroutine mld_d_base_solver_descr(sv,info,iout,coarse) import :: psb_desc_type, psb_dspmat_type, psb_d_base_sparse_mat, & & psb_d_vect_type, psb_d_base_vect_type, psb_dpk_, & & mld_d_base_solver_type, psb_ipk_ Implicit None ! Arguments class(mld_d_base_solver_type), intent(in) :: sv integer(psb_ipk_), intent(out) :: info integer(psb_ipk_), intent(in), optional :: iout logical, intent(in), optional :: coarse end subroutine mld_d_base_solver_descr end interface interface subroutine mld_d_base_solver_dmp(sv,ictxt,level,info,prefix,head,solver) import :: psb_desc_type, psb_dspmat_type, psb_d_base_sparse_mat, & & psb_d_vect_type, psb_d_base_vect_type, psb_dpk_, & & mld_d_base_solver_type, psb_ipk_ implicit none class(mld_d_base_solver_type), intent(in) :: sv 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) :: solver end subroutine mld_d_base_solver_dmp end interface interface subroutine mld_d_base_solver_clone(sv,svout,info) import :: psb_desc_type, psb_dspmat_type, psb_d_base_sparse_mat, & & psb_d_vect_type, psb_d_base_vect_type, psb_dpk_, & & mld_d_base_solver_type, psb_ipk_ Implicit None ! Arguments class(mld_d_base_solver_type), intent(inout) :: sv class(mld_d_base_solver_type), allocatable, intent(inout) :: svout integer(psb_ipk_), intent(out) :: info end subroutine mld_d_base_solver_clone end interface contains ! ! Function returning the size of the data structure ! in bytes or in number of nonzeros of the operator(s) involved. ! function d_base_solver_sizeof(sv) result(val) implicit none ! Arguments class(mld_d_base_solver_type), intent(in) :: sv integer(psb_long_int_k_) :: val integer(psb_ipk_) :: i val = 0 return end function d_base_solver_sizeof function d_base_solver_get_nzeros(sv) result(val) implicit none class(mld_d_base_solver_type), intent(in) :: sv integer(psb_long_int_k_) :: val integer(psb_ipk_) :: i val = 0 end function d_base_solver_get_nzeros subroutine d_base_solver_default(sv) implicit none ! Arguments class(mld_d_base_solver_type), intent(inout) :: sv ! Do nothing for base version return end subroutine d_base_solver_default function d_base_solver_get_fmt() result(val) implicit none character(len=32) :: val val = "Base solver" end function d_base_solver_get_fmt ! ! If this is true, then the solver needs a starting ! guess. Currently only handled in JAC smoother. ! function d_base_solver_is_iterative() result(val) implicit none logical :: val val = .false. end function d_base_solver_is_iterative function d_base_solver_get_id() result(val) implicit none integer(psb_ipk_) :: val val = mld_f_none_ end function d_base_solver_get_id end module mld_d_base_solver_mod