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405 lines
14 KiB
Fortran
405 lines
14 KiB
Fortran
!
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! Parallel Sparse BLAS version 3.5
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! (C) Copyright 2006-2018
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! Salvatore Filippone
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! Alfredo Buttari
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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 PSBLAS 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 PSBLAS 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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!! Module to define PREC_DATA, !!
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!! structure for preconditioning. !!
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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module psb_s_base_prec_mod
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! Reduces size of .mod file.
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use psb_base_mod, only : psb_spk_, psb_ipk_, psb_epk_, psb_ctxt_type, &
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& psb_desc_type, psb_sizeof, psb_free, psb_cdfree, psb_errpush, psb_act_abort_,&
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& psb_sizeof_ip, psb_sizeof_lp, psb_sizeof_sp, psb_sizeof_dp, &
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& psb_erractionsave, psb_erractionrestore, psb_error, &
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& psb_errstatus_fatal, psb_success_,&
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& psb_s_base_sparse_mat, psb_sspmat_type, psb_s_csr_sparse_mat,&
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& psb_s_base_vect_type, psb_s_vect_type, psb_i_base_vect_type
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use psb_prec_const_mod
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type, abstract :: psb_s_base_prec_type
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type(psb_ctxt_type) :: ctxt
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contains
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procedure, pass(prec) :: set_ctxt => psb_s_base_set_ctxt
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procedure, pass(prec) :: get_ctxt => psb_s_base_get_ctxt
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procedure, pass(prec) :: get_nzeros => psb_s_base_get_nzeros
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procedure, pass(prec) :: precseti => psb_s_base_precseti
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procedure, pass(prec) :: precsetr => psb_s_base_precsetr
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procedure, pass(prec) :: precsetc => psb_s_base_precsetc
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generic, public :: precset => precseti, precsetr, precsetc
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procedure(psb_s_base_apply_vect), pass(prec), deferred :: s_apply_v
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procedure(psb_s_base_apply), pass(prec), deferred :: s_apply
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generic, public :: apply => s_apply, s_apply_v
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generic, public :: build => precbld
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generic, public :: descr => precdescr
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procedure, pass(prec) :: desc_prefix => psb_s_base_desc_prefix
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procedure, pass(prec) :: allocate_wrk => psb_s_base_allocate_wrk
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procedure, pass(prec) :: free_wrk => psb_s_base_free_wrk
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procedure, pass(prec) :: is_allocated_wrk => psb_s_base_is_allocated_wrk
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procedure(psb_s_base_precbld), pass(prec), deferred :: precbld
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procedure(psb_s_base_sizeof), pass(prec), deferred :: sizeof
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procedure(psb_s_base_precinit), pass(prec), deferred :: precinit
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procedure(psb_s_base_precfree), pass(prec), deferred :: free
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procedure(psb_s_base_precdescr), pass(prec), deferred :: precdescr
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procedure(psb_s_base_precdump), pass(prec), deferred :: dump
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procedure(psb_s_base_precclone), pass(prec), deferred :: clone
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end type psb_s_base_prec_type
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private :: psb_s_base_set_ctxt, psb_s_base_get_ctxt, &
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& psb_s_base_get_nzeros
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abstract interface
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subroutine psb_s_base_apply_vect(alpha,prec,x,beta,y,desc_data,info,trans,work)
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import psb_ipk_, psb_spk_, psb_desc_type, psb_s_vect_type, &
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& psb_s_base_vect_type, psb_sspmat_type, psb_s_base_prec_type,&
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& psb_s_base_sparse_mat
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implicit none
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type(psb_desc_type),intent(in) :: desc_data
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class(psb_s_base_prec_type), intent(inout) :: prec
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real(psb_spk_),intent(in) :: alpha, beta
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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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integer(psb_ipk_), intent(out) :: info
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character(len=1), optional :: trans
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real(psb_spk_),intent(inout), optional, target :: work(:)
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end subroutine psb_s_base_apply_vect
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end interface
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abstract interface
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subroutine psb_s_base_apply(alpha,prec,x,beta,y,desc_data,info,trans,work)
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import psb_ipk_, psb_spk_, psb_desc_type, psb_s_vect_type, &
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& psb_s_base_vect_type, psb_sspmat_type, psb_s_base_prec_type,&
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& psb_s_base_sparse_mat
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implicit none
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type(psb_desc_type),intent(in) :: desc_data
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class(psb_s_base_prec_type), intent(inout) :: prec
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real(psb_spk_),intent(in) :: alpha, beta
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real(psb_spk_),intent(inout) :: x(:)
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real(psb_spk_),intent(inout) :: y(:)
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integer(psb_ipk_), intent(out) :: info
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character(len=1), optional :: trans
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real(psb_spk_),intent(inout), optional, target :: work(:)
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end subroutine psb_s_base_apply
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end interface
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abstract interface
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subroutine psb_s_base_precinit(prec,info)
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import psb_ipk_, psb_spk_, psb_desc_type, psb_s_vect_type, &
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& psb_s_base_vect_type, psb_sspmat_type, psb_s_base_prec_type,&
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& psb_s_base_sparse_mat
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Implicit None
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class(psb_s_base_prec_type),intent(inout) :: prec
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integer(psb_ipk_), intent(out) :: info
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end subroutine psb_s_base_precinit
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end interface
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abstract interface
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subroutine psb_s_base_precbld(a,desc_a,prec,info,amold,vmold,imold)
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import psb_ipk_, psb_spk_, psb_desc_type, psb_s_vect_type, &
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& psb_s_base_vect_type, psb_sspmat_type, psb_s_base_prec_type,&
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& psb_s_base_sparse_mat, psb_i_base_vect_type
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Implicit None
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type(psb_sspmat_type), intent(in), target :: a
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type(psb_desc_type), intent(inout), target :: desc_a
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class(psb_s_base_prec_type),intent(inout) :: prec
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integer(psb_ipk_), intent(out) :: info
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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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class(psb_i_base_vect_type), intent(in), optional :: imold
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end subroutine psb_s_base_precbld
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end interface
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abstract interface
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subroutine psb_s_base_precfree(prec,info)
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import psb_ipk_, psb_spk_, psb_desc_type, psb_s_vect_type, &
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& psb_s_base_vect_type, psb_sspmat_type, psb_s_base_prec_type,&
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& psb_s_base_sparse_mat
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Implicit None
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class(psb_s_base_prec_type), intent(inout) :: prec
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integer(psb_ipk_), intent(out) :: info
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end subroutine psb_s_base_precfree
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end interface
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abstract interface
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subroutine psb_s_base_precdescr(prec,iout,root, verbosity,prefix)
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import psb_ipk_, psb_spk_, psb_desc_type, psb_s_vect_type, &
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& psb_s_base_vect_type, psb_sspmat_type, psb_s_base_prec_type,&
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& psb_s_base_sparse_mat
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Implicit None
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class(psb_s_base_prec_type), intent(in) :: prec
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integer(psb_ipk_), intent(in), optional :: iout
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integer(psb_ipk_), intent(in), optional :: root
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integer(psb_ipk_), intent(in), optional :: verbosity
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character(len=*), intent(in), optional :: prefix
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end subroutine psb_s_base_precdescr
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end interface
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abstract interface
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subroutine psb_s_base_precdump(prec,info,prefix,head)
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import psb_ipk_, psb_spk_, psb_desc_type, psb_s_vect_type, &
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& psb_s_base_vect_type, psb_sspmat_type, psb_s_base_prec_type,&
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& psb_s_base_sparse_mat
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implicit none
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class(psb_s_base_prec_type), intent(in) :: prec
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integer(psb_ipk_), intent(out) :: info
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character(len=*), intent(in), optional :: prefix,head
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end subroutine psb_s_base_precdump
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end interface
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abstract interface
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subroutine psb_s_base_precclone(prec,precout,info)
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import psb_ipk_, psb_spk_, psb_desc_type, psb_s_vect_type, &
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& psb_s_base_vect_type, psb_sspmat_type, psb_s_base_prec_type,&
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& psb_s_base_sparse_mat
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implicit none
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class(psb_s_base_prec_type), intent(inout) :: prec
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class(psb_s_base_prec_type), allocatable, intent(inout) :: precout
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integer(psb_ipk_), intent(out) :: info
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end subroutine psb_s_base_precclone
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end interface
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contains
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subroutine psb_s_base_precseti(prec,what,val,info)
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Implicit None
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class(psb_s_base_prec_type),intent(inout) :: prec
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integer(psb_ipk_), intent(in) :: what
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integer(psb_ipk_), intent(in) :: val
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_) :: err_act, nrow
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character(len=20) :: name='s_base_precseti'
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!
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! Base version does nothing.
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info = psb_success_
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return
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end subroutine psb_s_base_precseti
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subroutine psb_s_base_precsetr(prec,what,val,info)
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Implicit None
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class(psb_s_base_prec_type),intent(inout) :: prec
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integer(psb_ipk_), intent(in) :: what
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real(psb_spk_), intent(in) :: val
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_) :: err_act, nrow
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character(len=20) :: name='s_base_precsetr'
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!
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! Base version does nothing.
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!
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info = psb_success_
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return
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end subroutine psb_s_base_precsetr
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subroutine psb_s_base_precsetc(prec,what,val,info)
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Implicit None
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class(psb_s_base_prec_type),intent(inout) :: prec
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integer(psb_ipk_), intent(in) :: what
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character(len=*), intent(in) :: val
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_) :: err_act, nrow
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character(len=20) :: name='s_base_precsetc'
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!
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! Base version does nothing.
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!
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info = psb_success_
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return
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end subroutine psb_s_base_precsetc
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subroutine psb_s_base_allocate_wrk(prec,info,vmold,desc)
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use psb_base_mod
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implicit none
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! Arguments
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class(psb_s_base_prec_type), intent(inout) :: prec
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integer(psb_ipk_), intent(out) :: info
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class(psb_s_base_vect_type), intent(in), optional :: vmold
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type(psb_desc_type), intent(in), optional :: desc
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! Local variables
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integer(psb_ipk_) :: err_act
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character(len=20) :: name
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info=psb_success_
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name = 'psb_s_allocate_wrk'
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call psb_erractionsave(err_act)
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if (psb_get_errstatus().ne.0) goto 9999
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!
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! Base version does nothing.
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!
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info = psb_success_
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call psb_erractionrestore(err_act)
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return
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9999 call psb_error_handler(err_act)
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return
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end subroutine psb_s_base_allocate_wrk
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subroutine psb_s_base_free_wrk(prec,info)
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use psb_base_mod
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implicit none
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! Arguments
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class(psb_s_base_prec_type), intent(inout) :: prec
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integer(psb_ipk_), intent(out) :: info
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! Local variables
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integer(psb_ipk_) :: err_act
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character(len=20) :: name
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info=psb_success_
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name = 'psb_s_allocate_wrk'
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call psb_erractionsave(err_act)
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if (psb_get_errstatus().ne.0) goto 9999
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!
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! Base version does nothing.
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!
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info = psb_success_
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call psb_erractionrestore(err_act)
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return
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9999 call psb_error_handler(err_act)
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return
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end subroutine psb_s_base_free_wrk
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function psb_s_base_is_allocated_wrk(prec) result(res)
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use psb_base_mod
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implicit none
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! Arguments
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class(psb_s_base_prec_type), intent(in) :: prec
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logical :: res
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! In the base version we can say yes, because
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! there is nothing to allocate
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res = .true.
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end function psb_s_base_is_allocated_wrk
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subroutine psb_s_base_set_ctxt(prec,ctxt)
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implicit none
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class(psb_s_base_prec_type), intent(inout) :: prec
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type(psb_ctxt_type) :: ctxt
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prec%ctxt = ctxt
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end subroutine psb_s_base_set_ctxt
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function psb_s_base_sizeof(prec) result(val)
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class(psb_s_base_prec_type), intent(in) :: prec
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integer(psb_epk_) :: val
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val = 0
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return
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end function psb_s_base_sizeof
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function psb_s_base_get_ctxt(prec) result(val)
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class(psb_s_base_prec_type), intent(in) :: prec
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type(psb_ctxt_type) :: val
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val = prec%ctxt
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return
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end function psb_s_base_get_ctxt
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function psb_s_base_get_nzeros(prec) result(res)
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class(psb_s_base_prec_type), intent(in) :: prec
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integer(psb_epk_) :: res
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res = 0
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end function psb_s_base_get_nzeros
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function psb_s_base_desc_prefix(prec) result(res)
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use psb_base_mod, only : psb_info, psb_root_
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implicit none
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class(psb_s_base_prec_type), intent(in) :: prec
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character(len=32) :: res
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!
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character(len=32) :: frmtv
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type(psb_ctxt_type) :: ctxt
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integer(psb_ipk_) :: ni, iam, np
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ctxt = prec%ctxt
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call psb_info(ctxt,iam,np)
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res = ''
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if (iam /= psb_root_) then
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ni = floor(log10(1.0*np)) + 1
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write(frmtv,'(a,i8.8,a)') '(a,i',ni,',a)'
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write(res,frmtv) 'Process ',iam,': Preconditioner: '
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else
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write(res,'(a)') 'Preconditioner: '
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end if
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end function psb_s_base_desc_prefix
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end module psb_s_base_prec_mod
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