!!$ !!$ !!$ 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_c_as_smoother use mld_c_base_smoother_mod type, extends(mld_c_base_smoother_type) :: mld_c_as_smoother_type ! The local solver component is inherited from the ! parent type. ! class(mld_c_base_solver_type), allocatable :: sv ! type(psb_cspmat_type) :: nd type(psb_desc_type) :: desc_data integer :: novr, restr, prol, nd_nnz_tot contains procedure, pass(sm) :: check => mld_c_as_smoother_check procedure, pass(sm) :: dump => mld_c_as_smoother_dmp procedure, pass(sm) :: build => mld_c_as_smoother_bld procedure, pass(sm) :: apply_v => mld_c_as_smoother_apply_vect procedure, pass(sm) :: apply_a => mld_c_as_smoother_apply procedure, pass(sm) :: free => mld_c_as_smoother_free procedure, pass(sm) :: seti => mld_c_as_smoother_seti procedure, pass(sm) :: setc => mld_c_as_smoother_setc procedure, pass(sm) :: setr => mld_c_as_smoother_setr procedure, pass(sm) :: descr => c_as_smoother_descr procedure, pass(sm) :: sizeof => c_as_smoother_sizeof procedure, pass(sm) :: default => c_as_smoother_default procedure, pass(sm) :: get_nzeros => c_as_smoother_get_nzeros end type mld_c_as_smoother_type private :: c_as_smoother_descr, c_as_smoother_sizeof, & & c_as_smoother_default, c_as_smoother_get_nzeros character(len=6), parameter, private :: & & restrict_names(0:4)=(/'none ','halo ',' ',' ',' '/) character(len=12), parameter, private :: & & prolong_names(0:3)=(/'none ','sum ','average ','square root'/) interface subroutine mld_c_as_smoother_check(sm,info) import :: psb_cspmat_type, psb_c_vect_type, psb_c_base_vect_type, & & psb_spk_, mld_c_as_smoother_type, psb_long_int_k_, psb_desc_type class(mld_c_as_smoother_type), intent(inout) :: sm integer, intent(out) :: info end subroutine mld_c_as_smoother_check end interface interface subroutine mld_c_as_smoother_apply_vect(alpha,sm,x,beta,y,desc_data,trans,sweeps,work,info) import :: psb_cspmat_type, psb_c_vect_type, psb_c_base_vect_type, & & psb_spk_, mld_c_as_smoother_type, psb_long_int_k_, psb_desc_type type(psb_desc_type), intent(in) :: desc_data class(mld_c_as_smoother_type), intent(inout) :: sm type(psb_c_vect_type),intent(inout) :: x type(psb_c_vect_type),intent(inout) :: y complex(psb_spk_),intent(in) :: alpha,beta character(len=1),intent(in) :: trans integer, intent(in) :: sweeps complex(psb_spk_),target, intent(inout) :: work(:) integer, intent(out) :: info end subroutine mld_c_as_smoother_apply_vect end interface interface subroutine mld_c_as_smoother_apply(alpha,sm,x,beta,y,desc_data,trans,sweeps,work,info) import :: psb_cspmat_type, psb_c_vect_type, psb_c_base_vect_type, & & psb_spk_, mld_c_as_smoother_type, psb_long_int_k_, psb_desc_type type(psb_desc_type), intent(in) :: desc_data class(mld_c_as_smoother_type), intent(in) :: sm complex(psb_spk_),intent(inout) :: x(:) complex(psb_spk_),intent(inout) :: y(:) complex(psb_spk_),intent(in) :: alpha,beta character(len=1),intent(in) :: trans integer, intent(in) :: sweeps complex(psb_spk_),target, intent(inout) :: work(:) integer, intent(out) :: info end subroutine mld_c_as_smoother_apply end interface interface subroutine mld_c_as_smoother_bld(a,desc_a,sm,upd,info,amold,vmold) import :: psb_cspmat_type, psb_c_vect_type, psb_c_base_vect_type, & & psb_spk_, mld_c_as_smoother_type, psb_long_int_k_, & & psb_desc_type, psb_c_base_sparse_mat type(psb_cspmat_type), intent(in), target :: a Type(psb_desc_type), Intent(in) :: desc_a class(mld_c_as_smoother_type), intent(inout) :: sm character, intent(in) :: upd integer, intent(out) :: info class(psb_c_base_sparse_mat), intent(in), optional :: amold class(psb_c_base_vect_type), intent(in), optional :: vmold end subroutine mld_c_as_smoother_bld end interface interface subroutine mld_c_as_smoother_seti(sm,what,val,info) import :: psb_cspmat_type, psb_c_vect_type, psb_c_base_vect_type, & & psb_spk_, mld_c_as_smoother_type, psb_long_int_k_, psb_desc_type class(mld_c_as_smoother_type), intent(inout) :: sm integer, intent(in) :: what integer, intent(in) :: val integer, intent(out) :: info end subroutine mld_c_as_smoother_seti end interface interface subroutine mld_c_as_smoother_setc(sm,what,val,info) import :: psb_cspmat_type, psb_c_vect_type, psb_c_base_vect_type, & & psb_spk_, mld_c_as_smoother_type, psb_long_int_k_, psb_desc_type class(mld_c_as_smoother_type), intent(inout) :: sm integer, intent(in) :: what character(len=*), intent(in) :: val integer, intent(out) :: info end subroutine mld_c_as_smoother_setc end interface interface subroutine mld_c_as_smoother_setr(sm,what,val,info) import :: psb_cspmat_type, psb_c_vect_type, psb_c_base_vect_type, & & psb_spk_, mld_c_as_smoother_type, psb_long_int_k_, psb_desc_type class(mld_c_as_smoother_type), intent(inout) :: sm integer, intent(in) :: what real(psb_spk_), intent(in) :: val integer, intent(out) :: info end subroutine mld_c_as_smoother_setr end interface interface subroutine mld_c_as_smoother_free(sm,info) import :: psb_cspmat_type, psb_c_vect_type, psb_c_base_vect_type, & & psb_spk_, mld_c_as_smoother_type, psb_long_int_k_, psb_desc_type class(mld_c_as_smoother_type), intent(inout) :: sm integer, intent(out) :: info end subroutine mld_c_as_smoother_free end interface interface subroutine mld_c_as_smoother_dmp(sm,ictxt,level,info,prefix,head,smoother,solver) import :: psb_cspmat_type, psb_c_vect_type, psb_c_base_vect_type, & & psb_spk_, mld_c_as_smoother_type, psb_long_int_k_, psb_desc_type class(mld_c_as_smoother_type), intent(in) :: sm integer, intent(in) :: ictxt,level integer, intent(out) :: info character(len=*), intent(in), optional :: prefix, head logical, optional, intent(in) :: smoother, solver end subroutine mld_c_as_smoother_dmp end interface contains function c_as_smoother_sizeof(sm) result(val) implicit none ! Arguments class(mld_c_as_smoother_type), intent(in) :: sm integer(psb_long_int_k_) :: val integer :: i val = psb_sizeof_int if (allocated(sm%sv)) val = val + sm%sv%sizeof() val = val + sm%nd%sizeof() return end function c_as_smoother_sizeof function c_as_smoother_get_nzeros(sm) result(val) implicit none class(mld_c_as_smoother_type), intent(in) :: sm integer(psb_long_int_k_) :: val integer :: i val = 0 if (allocated(sm%sv)) & & val = sm%sv%get_nzeros() val = val + sm%nd%get_nzeros() end function c_as_smoother_get_nzeros subroutine c_as_smoother_default(sm) use psb_base_mod, only : psb_halo_, psb_none_ Implicit None ! Arguments class(mld_c_as_smoother_type), intent(inout) :: sm sm%restr = psb_halo_ sm%prol = psb_none_ sm%novr = 1 if (allocated(sm%sv)) then call sm%sv%default() end if return end subroutine c_as_smoother_default subroutine c_as_smoother_descr(sm,info,iout,coarse) Implicit None ! Arguments class(mld_c_as_smoother_type), intent(in) :: sm 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_c_as_smoother_descr' integer :: 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_ = 6 endif if (.not.coarse_) then write(iout_,*) ' Additive Schwarz with ',& & sm%novr, ' overlap layers.' write(iout_,*) ' Restrictor: ',restrict_names(sm%restr) write(iout_,*) ' Prolongator: ',prolong_names(sm%prol) write(iout_,*) ' Local solver:' endif if (allocated(sm%sv)) then call sm%sv%descr(info,iout_,coarse=coarse) 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 c_as_smoother_descr end module mld_c_as_smoother