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121 lines
4.7 KiB
Fortran
121 lines
4.7 KiB
Fortran
!!$
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!!$
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!!$ MLD2P4
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!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
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!!$ based on PSBLAS (Parallel Sparse BLAS v.2.0)
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!!$
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!!$ (C) Copyright 2006 Alfredo Buttari University of Rome Tor Vergata
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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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!!$ Salvatore Filippone University of Rome Tor Vergata
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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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! File: psb_prec_mod.f90.
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!
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! Module: psb_prec_mod
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!
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! This version of the preconditioner module psb_prec_mod renames "on the fly"
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! the MLD2P4 preconditioner routines and data types so that the Krylov solvers
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! in PSBLAS can be tricked into using the MLD2P4 versions instead of the original
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! ones. Since there is no native runtime polymorphism this implies a recompilation,
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! but thanks to the renaming feature of Fortran 95 (and to the compatibility of
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! the calling sequences) there is no need to change the source code for the
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! Krylov methods.
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!
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module psb_prec_mod
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#if (__GNUC__==4) && (__GNUC_MINOR__<=2)
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!
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! GNU Fortran 4.2.
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! Workaround for PR 32634, it is fixed in GNU Fortran 4.3, will
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! it be fixed in 4.2???
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!
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use mld_prec_type, &
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& psb_dbaseprc_type => mld_dbaseprc_type,&
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& psb_zbaseprc_type => mld_zbaseprc_type,&
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& psb_dprec_type => mld_dprec_type,&
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& psb_zprec_type => mld_zprec_type,&
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& psb_base_precfree => mld_base_precfree,&
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& psb_nullify_baseprec => mld_nullify_baseprec,&
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& psb_prec_descr => mld_prec_descr,&
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& psb_prec_short_descr => mld_prec_short_descr
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use mld_prec_mod
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interface psb_precbld
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module procedure mld_dprecbld, mld_zprecbld
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end interface
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interface psb_precinit
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module procedure mld_dprecinit, mld_zprecinit
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end interface
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interface psb_precset
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module procedure mld_dprecseti, mld_dprecsetd,&
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& mld_zprecseti, mld_zprecsetd
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end interface
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interface psb_precfree
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module procedure mld_dprecfree, mld_zprecfree
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end interface
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interface psb_precaply
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module procedure mld_dprec_aply, mld_dprec_aply1, &
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& mld_zprec_aply, mld_zprec_aply1
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end interface
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#else
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use mld_prec_mod, &
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& psb_dbaseprc_type => mld_dbaseprc_type,&
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& psb_zbaseprc_type => mld_zbaseprc_type,&
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& psb_dprec_type => mld_dprec_type,&
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& psb_zprec_type => mld_zprec_type,&
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& psb_base_precfree => mld_base_precfree,&
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& psb_nullify_baseprec => mld_nullify_baseprec,&
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& psb_prec_descr => mld_prec_descr,&
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& psb_prec_short_descr => mld_prec_short_descr,&
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& psb_precbld => mld_precbld, &
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& psb_precinit => mld_precinit, &
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& psb_precfree => mld_precfree, &
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& psb_precset => mld_precset, &
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& psb_precaply => mld_precaply
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#endif
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integer, parameter :: psb_noprec_=mld_noprec_, psb_diag_=mld_diag_,&
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& psb_bjac_=mld_bjac_
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interface psb_sizeof
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module procedure mld_dprec_sizeof, mld_zprec_sizeof, &
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& mld_dbaseprc_sizeof, mld_zbaseprc_sizeof
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end interface
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end module psb_prec_mod
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