! ! ! 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_jac_smoother_mod.f90 ! ! Module: mld_d_jac_smoother_mod ! ! This module defines: ! the mld_d_jac_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 ! then the ND is the entire off-diagonal part of the matrix (including the ! main diagonal block), so that it becomes possible to implement ! pure Jacobi global solver. ! module mld_d_jac_smoother use mld_d_base_smoother_mod type, extends(mld_d_base_smoother_type) :: mld_d_jac_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 integer(psb_ipk_) :: nnz_nd_tot contains procedure, pass(sm) :: dump => mld_d_jac_smoother_dmp procedure, pass(sm) :: build => mld_d_jac_smoother_bld procedure, pass(sm) :: cnv => mld_d_jac_smoother_cnv procedure, pass(sm) :: clone => mld_d_jac_smoother_clone procedure, pass(sm) :: apply_v => mld_d_jac_smoother_apply_vect procedure, pass(sm) :: apply_a => mld_d_jac_smoother_apply procedure, pass(sm) :: free => d_jac_smoother_free procedure, pass(sm) :: descr => d_jac_smoother_descr procedure, pass(sm) :: sizeof => d_jac_smoother_sizeof procedure, pass(sm) :: get_nzeros => d_jac_smoother_get_nzeros procedure, nopass :: get_fmt => d_jac_smoother_get_fmt procedure, nopass :: get_id => d_jac_smoother_get_id end type mld_d_jac_smoother_type private :: d_jac_smoother_free, d_jac_smoother_descr, & & d_jac_smoother_sizeof, d_jac_smoother_get_nzeros, & & d_jac_smoother_get_fmt, d_jac_smoother_get_id interface subroutine mld_d_jac_smoother_apply_vect(alpha,sm,x,beta,y,desc_data,trans,& & sweeps,work,info,init,initu) import :: psb_desc_type, mld_d_jac_smoother_type, psb_d_vect_type, psb_dpk_, & & psb_dspmat_type, psb_d_base_sparse_mat, psb_d_base_vect_type,& & psb_ipk_ type(psb_desc_type), intent(in) :: desc_data class(mld_d_jac_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_jac_smoother_apply_vect end interface interface subroutine mld_d_jac_smoother_apply(alpha,sm,x,beta,y,desc_data,trans,& & sweeps,work,info,init,initu) import :: psb_desc_type, mld_d_jac_smoother_type, psb_d_vect_type, psb_dpk_, & & psb_dspmat_type, psb_d_base_sparse_mat, psb_d_base_vect_type, & & psb_ipk_ type(psb_desc_type), intent(in) :: desc_data class(mld_d_jac_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_jac_smoother_apply end interface interface subroutine mld_d_jac_smoother_bld(a,desc_a,sm,info,amold,vmold,imold) import :: psb_desc_type, mld_d_jac_smoother_type, psb_d_vect_type, psb_dpk_, & & psb_dspmat_type, psb_d_base_sparse_mat, psb_d_base_vect_type,& & psb_ipk_, psb_i_base_vect_type type(psb_dspmat_type), intent(in), target :: a Type(psb_desc_type), Intent(inout) :: desc_a class(mld_d_jac_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_jac_smoother_bld end interface interface subroutine mld_d_jac_smoother_cnv(sm,info,amold,vmold,imold) import :: mld_d_jac_smoother_type, psb_dpk_, & & psb_d_base_sparse_mat, psb_d_base_vect_type,& & psb_ipk_, psb_i_base_vect_type class(mld_d_jac_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_jac_smoother_cnv end interface interface subroutine mld_d_jac_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_jac_smoother_type, psb_long_int_k_, psb_desc_type, & & psb_ipk_ implicit none class(mld_d_jac_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_jac_smoother_dmp end interface interface subroutine mld_d_jac_smoother_clone(sm,smout,info) import :: mld_d_jac_smoother_type, psb_dpk_, & & mld_d_base_smoother_type, psb_ipk_ class(mld_d_jac_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_jac_smoother_clone end interface contains subroutine d_jac_smoother_free(sm,info) Implicit None ! Arguments class(mld_d_jac_smoother_type), intent(inout) :: sm integer(psb_ipk_), intent(out) :: info integer(psb_ipk_) :: err_act character(len=20) :: name='d_jac_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 call sm%nd%free() call psb_erractionrestore(err_act) return 9999 call psb_error_handler(err_act) return end subroutine d_jac_smoother_free subroutine d_jac_smoother_descr(sm,info,iout,coarse) Implicit None ! Arguments class(mld_d_jac_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_jac_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_ = psb_out_unit endif if (.not.coarse_) then write(iout_,*) ' Block Jacobi smoother ' write(iout_,*) ' Local solver:' end if 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_jac_smoother_descr function d_jac_smoother_sizeof(sm) result(val) implicit none ! Arguments class(mld_d_jac_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_jac_smoother_sizeof function d_jac_smoother_get_nzeros(sm) result(val) implicit none ! Arguments class(mld_d_jac_smoother_type), intent(in) :: sm integer(psb_long_int_k_) :: val integer(psb_ipk_) :: i val = 0 if (allocated(sm%sv)) val = val + sm%sv%get_nzeros() val = val + sm%nd%get_nzeros() return end function d_jac_smoother_get_nzeros function d_jac_smoother_get_fmt() result(val) implicit none character(len=32) :: val val = "Jacobi smoother" end function d_jac_smoother_get_fmt function d_jac_smoother_get_id() result(val) implicit none integer(psb_ipk_) :: val val = mld_jac_ end function d_jac_smoother_get_id end module mld_d_jac_smoother