!!$ !!$ !!$ MLD2P4 version 2.0 !!$ MultiLevel Domain Decomposition Parallel Preconditioners Package !!$ based on PSBLAS (Parallel Sparse BLAS version 3.0) !!$ !!$ (C) Copyright 2008,2009,2010,2012 !!$ !!$ Salvatore Filippone University of Rome Tor Vergata !!$ Alfredo Buttari CNRS-IRIT, Toulouse !!$ Pasqua D'Ambra ICAR-CNR, Naples !!$ Daniela di Serafino Second University of Naples !!$ !!$ 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. !!$ !!$ ! ! ! ! ! ! module mld_s_diag_solver use mld_s_base_solver_mod type, extends(mld_s_base_solver_type) :: mld_s_diag_solver_type type(psb_s_vect_type), allocatable :: dv real(psb_spk_), allocatable :: d(:) contains procedure, pass(sv) :: build => mld_s_diag_solver_bld procedure, pass(sv) :: apply_v => mld_s_diag_solver_apply_vect procedure, pass(sv) :: apply_a => mld_s_diag_solver_apply procedure, pass(sv) :: free => s_diag_solver_free procedure, pass(sv) :: seti => s_diag_solver_seti procedure, pass(sv) :: setc => s_diag_solver_setc procedure, pass(sv) :: setr => s_diag_solver_setr procedure, pass(sv) :: descr => s_diag_solver_descr procedure, pass(sv) :: sizeof => s_diag_solver_sizeof procedure, pass(sv) :: get_nzeros => s_diag_solver_get_nzeros end type mld_s_diag_solver_type private :: s_diag_solver_free, s_diag_solver_seti, & & s_diag_solver_setc, s_diag_solver_setr,& & s_diag_solver_descr, s_diag_solver_sizeof,& & s_diag_solver_get_nzeros interface subroutine mld_s_diag_solver_apply_vect(alpha,sv,x,beta,y,desc_data,trans,work,info) import :: psb_desc_type, psb_sspmat_type, psb_s_base_sparse_mat, & & psb_s_vect_type, psb_s_base_vect_type, psb_spk_, mld_s_diag_solver_type type(psb_desc_type), intent(in) :: desc_data class(mld_s_diag_solver_type), intent(inout) :: sv 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 real(psb_spk_),target, intent(inout) :: work(:) integer, intent(out) :: info end subroutine mld_s_diag_solver_apply_vect end interface interface subroutine mld_s_diag_solver_apply(alpha,sv,x,beta,y,desc_data,trans,work,info) import :: psb_desc_type, psb_sspmat_type, psb_s_base_sparse_mat, & & psb_s_vect_type, psb_s_base_vect_type, psb_spk_, mld_s_diag_solver_type type(psb_desc_type), intent(in) :: desc_data class(mld_s_diag_solver_type), intent(in) :: sv 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 real(psb_spk_),target, intent(inout) :: work(:) integer, intent(out) :: info end subroutine mld_s_diag_solver_apply end interface interface subroutine mld_s_diag_solver_bld(a,desc_a,sv,upd,info,b,amold,vmold) import :: psb_desc_type, psb_sspmat_type, psb_s_base_sparse_mat, & & psb_s_vect_type, psb_s_base_vect_type, psb_spk_, mld_s_diag_solver_type type(psb_sspmat_type), intent(in), target :: a Type(psb_desc_type), Intent(in) :: desc_a class(mld_s_diag_solver_type), intent(inout) :: sv character, intent(in) :: upd integer, intent(out) :: info type(psb_sspmat_type), intent(in), target, optional :: b class(psb_s_base_sparse_mat), intent(in), optional :: amold class(psb_s_base_vect_type), intent(in), optional :: vmold end subroutine mld_s_diag_solver_bld end interface contains subroutine s_diag_solver_seti(sv,what,val,info) Implicit None ! Arguments class(mld_s_diag_solver_type), intent(inout) :: sv integer, intent(in) :: what integer, intent(in) :: val integer, intent(out) :: info Integer :: err_act character(len=20) :: name='s_diag_solver_seti' info = psb_success_ return end subroutine s_diag_solver_seti subroutine s_diag_solver_setc(sv,what,val,info) Implicit None ! Arguments class(mld_s_diag_solver_type), intent(inout) :: sv integer, intent(in) :: what character(len=*), intent(in) :: val integer, intent(out) :: info Integer :: err_act, ival character(len=20) :: name='s_diag_solver_setc' info = psb_success_ return end subroutine s_diag_solver_setc subroutine s_diag_solver_setr(sv,what,val,info) Implicit None ! Arguments class(mld_s_diag_solver_type), intent(inout) :: sv integer, intent(in) :: what real(psb_spk_), intent(in) :: val integer, intent(out) :: info Integer :: err_act character(len=20) :: name='s_diag_solver_setr' info = psb_success_ return end subroutine s_diag_solver_setr subroutine s_diag_solver_free(sv,info) Implicit None ! Arguments class(mld_s_diag_solver_type), intent(inout) :: sv integer, intent(out) :: info Integer :: err_act character(len=20) :: name='s_diag_solver_free' call psb_erractionsave(err_act) info = psb_success_ call sv%dv%free(info) if (allocated(sv%d)) then deallocate(sv%d,stat=info) if (info /= psb_success_) then info = psb_err_alloc_dealloc_ call psb_errpush(info,name) goto 9999 end if end if call psb_erractionrestore(err_act) return 9999 continue call psb_erractionrestore(err_act) if (err_act == psb_act_abort_) then call psb_error() return end if return end subroutine s_diag_solver_free subroutine s_diag_solver_descr(sv,info,iout,coarse) Implicit None ! Arguments class(mld_s_diag_solver_type), intent(in) :: sv integer, intent(out) :: info integer, intent(in), optional :: iout logical, intent(in), optional :: coarse ! Local variables integer :: err_act integer :: ictxt, me, np character(len=20), parameter :: name='mld_s_diag_solver_descr' integer :: iout_ info = psb_success_ if (present(iout)) then iout_ = iout else iout_ = 6 endif write(iout_,*) ' Diagonal local solver ' return end subroutine s_diag_solver_descr function s_diag_solver_sizeof(sv) result(val) implicit none ! Arguments class(mld_s_diag_solver_type), intent(in) :: sv integer(psb_long_int_k_) :: val integer :: i val = 0 if (allocated(sv%dv)) val = val + sv%dv%sizeof() return end function s_diag_solver_sizeof function s_diag_solver_get_nzeros(sv) result(val) implicit none ! Arguments class(mld_s_diag_solver_type), intent(in) :: sv integer(psb_long_int_k_) :: val integer :: i val = 0 if (allocated(sv%dv)) val = val + sv%dv%get_nrows() return end function s_diag_solver_get_nzeros end module mld_s_diag_solver