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429 lines
13 KiB
Fortran
429 lines
13 KiB
Fortran
!!$
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!!$
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!!$ MLD2P4 version 2.0
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!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
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!!$ based on PSBLAS (Parallel Sparse BLAS version 3.0)
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!!$
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!!$ (C) Copyright 2008,2009,2010,2012
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!!$
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!!$ Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari CNRS-IRIT, Toulouse
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!!$ Pasqua D'Ambra ICAR-CNR, Naples
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!!$ Daniela di Serafino Second University of Naples
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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 MLD2P4 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 MLD2P4 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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!
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!
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!
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!
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!
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module mld_s_ilu_solver
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use mld_s_base_solver_mod
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use mld_s_ilu_fact_mod
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type, extends(mld_s_base_solver_type) :: mld_s_ilu_solver_type
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type(psb_sspmat_type) :: l, u
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real(psb_spk_), allocatable :: d(:)
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type(psb_s_vect_type) :: dv
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integer :: fact_type, fill_in
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real(psb_spk_) :: thresh
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contains
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procedure, pass(sv) :: dump => mld_s_ilu_solver_dmp
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procedure, pass(sv) :: build => mld_s_ilu_solver_bld
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procedure, pass(sv) :: apply_v => mld_s_ilu_solver_apply_vect
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procedure, pass(sv) :: apply_a => mld_s_ilu_solver_apply
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procedure, pass(sv) :: free => s_ilu_solver_free
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procedure, pass(sv) :: seti => s_ilu_solver_seti
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procedure, pass(sv) :: setc => s_ilu_solver_setc
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procedure, pass(sv) :: setr => s_ilu_solver_setr
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procedure, pass(sv) :: descr => s_ilu_solver_descr
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procedure, pass(sv) :: default => s_ilu_solver_default
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procedure, pass(sv) :: sizeof => s_ilu_solver_sizeof
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procedure, pass(sv) :: get_nzeros => s_ilu_solver_get_nzeros
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end type mld_s_ilu_solver_type
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private :: s_ilu_solver_bld, s_ilu_solver_apply, &
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& s_ilu_solver_free, s_ilu_solver_seti, &
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& s_ilu_solver_setc, s_ilu_solver_setr,&
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& s_ilu_solver_descr, s_ilu_solver_sizeof, &
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& s_ilu_solver_default, s_ilu_solver_dmp, &
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& s_ilu_solver_apply_vect, s_ilu_solver_get_nzeros
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character(len=15), parameter, private :: &
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& fact_names(0:mld_slv_delta_+4)=(/&
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& 'none ','none ',&
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& 'none ','none ',&
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& 'none ','DIAG ?? ',&
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& 'ILU(n) ',&
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& 'MILU(n) ','ILU(t,n) '/)
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interface
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subroutine mld_s_ilu_solver_apply_vect(alpha,sv,x,beta,y,desc_data,trans,work,info)
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import :: psb_desc_type, mld_s_ilu_solver_type, psb_s_vect_type, psb_spk_, &
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& psb_sspmat_type, psb_s_base_sparse_mat, psb_s_base_vect_type
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type(psb_desc_type), intent(in) :: desc_data
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class(mld_s_ilu_solver_type), intent(inout) :: sv
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type(psb_s_vect_type),intent(inout) :: x
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type(psb_s_vect_type),intent(inout) :: y
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real(psb_spk_),intent(in) :: alpha,beta
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character(len=1),intent(in) :: trans
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real(psb_spk_),target, intent(inout) :: work(:)
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integer, intent(out) :: info
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end subroutine mld_s_ilu_solver_apply_vect
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end interface
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interface
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subroutine mld_s_ilu_solver_apply(alpha,sv,x,beta,y,desc_data,trans,work,info)
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import :: psb_desc_type, mld_s_ilu_solver_type, psb_s_vect_type, psb_spk_, &
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& psb_sspmat_type, psb_s_base_sparse_mat, psb_s_base_vect_type
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type(psb_desc_type), intent(in) :: desc_data
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class(mld_s_ilu_solver_type), intent(in) :: sv
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real(psb_spk_),intent(inout) :: x(:)
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real(psb_spk_),intent(inout) :: y(:)
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real(psb_spk_),intent(in) :: alpha,beta
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character(len=1),intent(in) :: trans
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real(psb_spk_),target, intent(inout) :: work(:)
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integer, intent(out) :: info
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end subroutine mld_s_ilu_solver_apply
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end interface
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interface
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subroutine mld_s_ilu_solver_bld(a,desc_a,sv,upd,info,b,amold,vmold)
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import :: psb_desc_type, mld_s_ilu_solver_type, psb_s_vect_type, psb_spk_, &
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& psb_sspmat_type, psb_s_base_sparse_mat, psb_s_base_vect_type
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type(psb_sspmat_type), intent(in), target :: a
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Type(psb_desc_type), Intent(in) :: desc_a
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class(mld_s_ilu_solver_type), intent(inout) :: sv
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character, intent(in) :: upd
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integer, intent(out) :: info
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type(psb_sspmat_type), intent(in), target, optional :: b
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class(psb_s_base_sparse_mat), intent(in), optional :: amold
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class(psb_s_base_vect_type), intent(in), optional :: vmold
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end subroutine mld_s_ilu_solver_bld
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end interface
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interface
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subroutine mld_s_ilu_solver_dmp(sv,ictxt,level,info,prefix,head,solver)
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import :: psb_desc_type, mld_s_ilu_solver_type, psb_s_vect_type, psb_spk_, &
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& psb_sspmat_type, psb_s_base_sparse_mat, psb_s_base_vect_type
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class(mld_s_ilu_solver_type), intent(in) :: sv
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integer, intent(in) :: ictxt,level
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integer, intent(out) :: info
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character(len=*), intent(in), optional :: prefix, head
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logical, optional, intent(in) :: solver
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end subroutine mld_s_ilu_solver_dmp
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end interface
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contains
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subroutine s_ilu_solver_default(sv)
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Implicit None
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! Arguments
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class(mld_s_ilu_solver_type), intent(inout) :: sv
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sv%fact_type = mld_ilu_n_
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sv%fill_in = 0
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sv%thresh = szero
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return
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end subroutine s_ilu_solver_default
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subroutine s_ilu_solver_check(sv,info)
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Implicit None
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! Arguments
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class(mld_s_ilu_solver_type), intent(inout) :: sv
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integer, intent(out) :: info
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Integer :: err_act
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character(len=20) :: name='s_ilu_solver_check'
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call psb_erractionsave(err_act)
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info = psb_success_
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call mld_check_def(sv%fact_type,&
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& 'Factorization',mld_ilu_n_,is_legal_ilu_fact)
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select case(sv%fact_type)
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case(mld_ilu_n_,mld_milu_n_)
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call mld_check_def(sv%fill_in,&
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& 'Level',0,is_legal_ml_lev)
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case(mld_ilu_t_)
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call mld_check_def(sv%thresh,&
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& 'Eps',szero,is_legal_s_fact_thrs)
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end select
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if (info /= psb_success_) goto 9999
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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end subroutine s_ilu_solver_check
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subroutine s_ilu_solver_seti(sv,what,val,info)
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Implicit None
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! Arguments
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class(mld_s_ilu_solver_type), intent(inout) :: sv
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integer, intent(in) :: what
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integer, intent(in) :: val
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integer, intent(out) :: info
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Integer :: err_act
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character(len=20) :: name='s_ilu_solver_seti'
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info = psb_success_
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call psb_erractionsave(err_act)
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select case(what)
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case(mld_sub_solve_)
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sv%fact_type = val
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case(mld_sub_fillin_)
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sv%fill_in = val
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case default
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!!$ write(0,*) name,': Error: invalid WHAT'
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!!$ info = -2
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end select
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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end subroutine s_ilu_solver_seti
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subroutine s_ilu_solver_setc(sv,what,val,info)
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Implicit None
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! Arguments
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class(mld_s_ilu_solver_type), intent(inout) :: sv
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integer, intent(in) :: what
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character(len=*), intent(in) :: val
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integer, intent(out) :: info
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Integer :: err_act, ival
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character(len=20) :: name='s_ilu_solver_setc'
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info = psb_success_
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call psb_erractionsave(err_act)
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call mld_stringval(val,ival,info)
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if (info == psb_success_) call sv%set(what,ival,info)
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if (info /= psb_success_) then
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info = psb_err_from_subroutine_
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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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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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end subroutine s_ilu_solver_setc
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subroutine s_ilu_solver_setr(sv,what,val,info)
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Implicit None
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! Arguments
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class(mld_s_ilu_solver_type), intent(inout) :: sv
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integer, intent(in) :: what
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real(psb_spk_), intent(in) :: val
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integer, intent(out) :: info
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Integer :: err_act
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character(len=20) :: name='s_ilu_solver_setr'
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call psb_erractionsave(err_act)
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info = psb_success_
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select case(what)
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case(mld_sub_iluthrs_)
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sv%thresh = val
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case default
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!!$ write(0,*) name,': Error: invalid WHAT'
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!!$ info = -2
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!!$ goto 9999
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end select
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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end subroutine s_ilu_solver_setr
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subroutine s_ilu_solver_free(sv,info)
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Implicit None
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! Arguments
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class(mld_s_ilu_solver_type), intent(inout) :: sv
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integer, intent(out) :: info
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Integer :: err_act
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character(len=20) :: name='s_ilu_solver_free'
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call psb_erractionsave(err_act)
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info = psb_success_
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if (allocated(sv%d)) then
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deallocate(sv%d,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 sv%l%free()
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call sv%u%free()
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call sv%dv%free(info)
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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end subroutine s_ilu_solver_free
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subroutine s_ilu_solver_descr(sv,info,iout,coarse)
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Implicit None
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! Arguments
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class(mld_s_ilu_solver_type), intent(in) :: sv
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integer, intent(out) :: info
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integer, intent(in), optional :: iout
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logical, intent(in), optional :: coarse
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! Local variables
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integer :: err_act
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integer :: ictxt, me, np
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character(len=20), parameter :: name='mld_s_ilu_solver_descr'
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integer :: iout_
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call psb_erractionsave(err_act)
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info = psb_success_
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if (present(iout)) then
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iout_ = iout
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else
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iout_ = 6
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endif
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write(iout_,*) ' Incomplete factorization solver: ',&
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& fact_names(sv%fact_type)
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select case(sv%fact_type)
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case(mld_ilu_n_,mld_milu_n_)
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write(iout_,*) ' Fill level:',sv%fill_in
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case(mld_ilu_t_)
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write(iout_,*) ' Fill level:',sv%fill_in
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write(iout_,*) ' Fill threshold :',sv%thresh
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end select
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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end subroutine s_ilu_solver_descr
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function s_ilu_solver_get_nzeros(sv) result(val)
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implicit none
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! Arguments
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class(mld_s_ilu_solver_type), intent(in) :: sv
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integer(psb_long_int_k_) :: val
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integer :: i
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val = 0
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val = val + sv%dv%get_nrows()
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val = val + sv%l%get_nzeros()
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val = val + sv%u%get_nzeros()
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return
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end function s_ilu_solver_get_nzeros
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function s_ilu_solver_sizeof(sv) result(val)
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implicit none
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! Arguments
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class(mld_s_ilu_solver_type), intent(in) :: sv
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integer(psb_long_int_k_) :: val
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integer :: i
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val = 2*psb_sizeof_int + psb_sizeof_sp
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val = val + sv%dv%sizeof()
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val = val + sv%l%sizeof()
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val = val + sv%u%sizeof()
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return
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end function s_ilu_solver_sizeof
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end module mld_s_ilu_solver
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