openfoam/wmake/scripts/have_petsc
2019-08-02 12:17:39 +02:00

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#----------------------------------*-sh-*--------------------------------------
# ========= |
# \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
# \\ / O peration |
# \\ / A nd | Copyright (C) 2018-2019 OpenCFD Ltd.
# \\/ M anipulation |
#------------------------------------------------------------------------------
# License
# This file is part of OpenFOAM, licensed under GNU General Public License
# <http://www.gnu.org/licenses/>.
#
# Script
# have_petsc
#
# Description
# Detection/setup of PETSC
#
# Requires
# PETSC_ARCH_PATH
#
# Functions provided
# have_petsc, no_petsc, echo_petsc, hint_petsc
#
# Variables set on success
# HAVE_PETSC
# PETSC_ARCH_PATH
# PETSC_INC_DIR
# PETSC_LIB_DIR
#
#------------------------------------------------------------------------------
. $WM_PROJECT_DIR/wmake/scripts/sysFunctions # General system functions
#------------------------------------------------------------------------------
# Reset variables
no_petsc()
{
unset HAVE_PETSC PETSC_INC_DIR PETSC_LIB_DIR
return 0
}
# Reset variables
echo_petsc()
{
echo "petsc=${HAVE_PETSC:-false}"
echo "root=$PETSC_ARCH_PATH"
echo "include=$PETSC_INC_DIR"
echo "library=$PETSC_LIB_DIR"
}
# Provide hint for enabling
hint_petsc()
{
/bin/cat<<INFORMATION 1>&2
==> petsc not found?
Enable in the OpenFOAM etc/bashrc, define manually or try with the
following (POSIX shell):
eval \$(foamEtcFile -sh -config petsc -- -force)
==
INFORMATION
}
# On success, return 0 and export variables
# -> HAVE_PETSC, PETSC_INC_DIR, PETSC_LIB_DIR
have_petsc()
{
local prefix header library incName libName settings warn
warn="==> skip petsc"
# Setup - prefer current environment value? (TDB)
if [ ! -d "$PETSC_ARCH_PATH" ]
then
if settings=$($WM_PROJECT_DIR/bin/foamEtcFile config.sh/petsc)
then
. "$settings"
else
[ -n "$warn" ] && echo "$warn (no config.sh/petsc settings)"
return 2
fi
fi
# Expected location, include/library names
prefix="$PETSC_ARCH_PATH"
incName="petsc.h"
libName="libpetsc"
# ----------------------------------
if isNone "$prefix"
then
[ -n "$warn" ] && echo "$warn (disabled)"
return 1
elif hasAbsdir "$prefix"
then
header=$(findFirstFile "$prefix/include/$incName")
library="$(findExtLib $libName)"
elif isSystem "$prefix"
then
header=$(findFirstFile "/usr/local/include/$incName" "/usr/include/$incName")
prefix=$(sysPrefix "$header")
else
unset prefix
fi
# ----------------------------------
# Header
[ -n "$header" ] || {
[ -n "$warn" ] && echo "$warn (no header)"
return 2
}
# Library
[ -n "$library" ] || library=$(findLibrary \
"$prefix/lib/$libName" \
"$prefix/lib$WM_COMPILER_LIB_ARCH/$libName" \
) || {
[ -n "$warn" ] && echo "$warn (no library)"
return 2
}
# ----------------------------------
# TODO: check size of petsc integer vs label
# OK
export HAVE_PETSC=true
export PETSC_ARCH_PATH="$prefix"
export PETSC_INC_DIR="${header%/*}" # Basename
export PETSC_LIB_DIR="${library%/*}" # Basename
}
# Force reset of old variables
no_petsc
# Testing
if [ "$1" = "-test" ]
then
have_petsc
echo_petsc
fi
#------------------------------------------------------------------------------