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openfoam/wmake/scripts/have_scotch
Mark Olesen bf1ed94e53 ENH: use PrecisionAdaptor to support scotch with label widening 
- allows reuse of an int64_t scotch library with label-size 32
  and/or label-size 64.

COMP: prefer scotch/metis/kahip libraries with label-size qualifiers

- as noted in #2200, mpirun may insert mpi libraries higher in the
  library loader which can cause masking of our ThirdParty libraries
  of the same name. With scotch (for example), the operating system
  may have an int32 version installed but we have an int64 version
  compiled under ThirdParty. Runing in serial is fine, but in parallel
  we resolve to the (incorrect) system version due to the adjustments
  in mpirun.

- adjust the ThirdParty make scripts to also create corresponding
  links (eg, 'ln -s libscotch.so libscotch-int64.so') and prefer
  linkage with these qualified libraries.

    Eg,  -L$(SCOTCH_LIB_DIR) -lscotch$(SCOTCH_LIBNAME_SUFFIX)

  this prevent accidental runtime linkage with the system versions.

STYLE: simplify scotch interface code by using local functions
2021-09-07 11:29:11 +02:00

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#----------------------------------*-sh-*--------------------------------------
# ========= |
# \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
# \\ / O peration |
# \\ / A nd | www.openfoam.com
# \\/ M anipulation |
#------------------------------------------------------------------------------
# Copyright (C) 2018-2021 OpenCFD Ltd.
#------------------------------------------------------------------------------
# License
# This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
#
# Script
# have_scotch
#
# Description
# Detection/setup of SCOTCH
#
# Requires
# config.sh/scotch
#
# Functions provided
# have_ptscotch, search_ptscotch
#
# Variables set on success
# HAVE_SCOTCH
# SCOTCH_ARCH_PATH
# SCOTCH_INC_DIR
# SCOTCH_LIB_DIR
# SCOTCH_LIBNAME_SUFFIX [optional]
#
# Functions provided [Must call have_scotch first]
# have_ptscotch, search_ptscotch
#
# Variables set on success
# HAVE_PTSCOTCH
# PTSCOTCH_ARCH_PATH
# PTSCOTCH_INC_DIR
# PTSCOTCH_LIB_DIR
#
#
# System files can be hiding in a large variety of locations.
# For x86_64 system:
#
# ArchLinux
# ---------
# scotch include: /usr/include/scotch
# scotch library: /usr/lib64
#
# ptscotch include: /usr/include/ptscotch
# ptscotch library: /usr/lib64
#
#
# Debian/Ubuntu
# -------------
# scotch include: /usr/include/scotch-int32
# scotch library: /usr/lib/x86_64-linux-gnu
#
# ptscotch include: /usr/include/scotch-int32
# ptscotch library: /usr/lib/x86_64-linux-gnu
#
#
# RedHat
# ------
# scotch include: /usr/include
# scotch library: /usr/lib64
#
# ptscotch include: /usr/include/openmpi-x86_64
# ptscotch library: /usr/lib64/openmpi/lib
#
# when MPI_ARCH_PATH=/usr/lib64/openmpi
# and mpicc --showme:compile -> -I/usr/include/openmpi-x86_64
#
# NB: for RedHat (8+) /usr/include/scotch.h is a wrapper that includes
# /usr/include/scotch-64.h (LP64 mode)
# or /usr/include/scotch-32.h (ILP32 mode)
# In either case, int is 32 bits
#
# openSUSE
# --------
# scotch include: /usr/include
# scotch library: /usr/lib64
#
# ptscotch include: /usr/lib64/mpi/gcc/openmpi2/include
# ptscotch library: /usr/lib64/mpi/gcc/openmpi2/lib64
#
# when MPI_ARCH_PATH=/usr/lib64/mpi/gcc/openmpi2
#
#------------------------------------------------------------------------------
. ${WM_PROJECT_DIR:?}/wmake/scripts/sysFunctions # General system functions
#------------------------------------------------------------------------------
# Reset
no_scotch()
{
unset HAVE_SCOTCH SCOTCH_ARCH_PATH SCOTCH_INC_DIR SCOTCH_LIB_DIR
unset SCOTCH_VERSION SCOTCH_LIBNAME_SUFFIX
unset HAVE_PTSCOTCH PTSCOTCH_ARCH_PATH PTSCOTCH_INC_DIR PTSCOTCH_LIB_DIR
}
# Report
echo_scotch()
{
echo "scotch=${HAVE_SCOTCH:-false}"
echo "root=\"$SCOTCH_ARCH_PATH\""
echo "include=\"$SCOTCH_INC_DIR\""
echo "library=\"$SCOTCH_LIB_DIR\""
if [ -n "$SCOTCH_LIBNAME_SUFFIX" ]
then
echo "libsuffix=\"$SCOTCH_LIBNAME_SUFFIX\""
fi
echo
echo "ptscotch=${HAVE_PTSCOTCH:-false}"
echo "root=\"$PTSCOTCH_ARCH_PATH\""
echo "include=\"$PTSCOTCH_INC_DIR\""
echo "library=\"$PTSCOTCH_LIB_DIR\""
if [ -n "$SCOTCH_LIBNAME_SUFFIX" ]
then
echo "libsuffix=\"$SCOTCH_LIBNAME_SUFFIX\""
fi
}
# Search
# $1 : prefix (*_ARCH_PATH, system, ...)
#
# On success, return 0 and export variables
# -> HAVE_SCOTCH, SCOTCH_ARCH_PATH, SCOTCH_INC_DIR, SCOTCH_LIB_DIR
search_scotch()
{
local warn="==> skip scotch"
local incName="scotch.h"
local libName="libscotch"
local localDir="scotch-int$WM_LABEL_SIZE"
local prefix="${1:-system}"
local header library
# ----------------------------------
if isNone "$prefix"
then
[ -n "$warn" ] && echo "$warn (disabled)"
return 1
elif hasAbsdir "$prefix"
then
header=$(findFirstFile \
"$prefix/include/$localDir/$incName" \
"$prefix/include/scotch/$incName" \
"$prefix/include/$incName" \
)
library="-extlib" # Delay search...
elif isSystem "$prefix"
then
header=$(findFirstFile \
"/usr/local/include/$localDir/$incName" \
"/usr/local/include/scotch/$incName" \
"/usr/local/include/$incName" \
"/usr/include/$localDir/$incName" \
"/usr/include/scotch/$incName" \
"/usr/include/$incName" \
)
prefix=$(sysPrefix "$header")
else
unset prefix
fi
# ----------------------------------
equalBaseName "${header%/*}" "$localDir" || unset localDir
# Header
[ -n "$header" ] || {
[ -n "$warn" ] && echo "$warn (no header)"
return 2
}
# ----------------------------------
# Extract 'typedef int64_t SCOTCH_Num' etc from header file
# - ensure consistent size between OpenFOAM and scotch header
# - for some systems, scotch.h includes scotch-64.h (for example).
local label
for hdr in \
"$header" \
"${header%/*}"/scotch-64.h \
"${header%/*}"/scotch-32.h \
;
do
if [ -f "$hdr" ]
then
label=$(sed -ne \
's/^.*typedef *\([^ ]*\) *SCOTCH_Num.*/\1/p' \
"$hdr")
if [ -n "$label" ]
then
header="$hdr" # Appears successful
break
fi
fi
done
: "${label:=unknown}" # Safety
# Transform (int32_t | int64_t) -> (int32 | int64)
case "$label" in (int32_t | int64_t) label="${label%_t}" ;; esac
if [ "$library" = "-extlib" ]
then
library=$(findExtLib "${libName}-${label}" "$libName")
fi
# Library
[ -n "$library" ] \
|| library=$(findLibrary -prefix="$prefix" -name="$libName" -local="$localDir") \
|| {
[ -n "$warn" ] && echo "$warn (no library)"
return 2
}
# ----------------------------------
# No SCOTCH_VERSION set? Try to obtain from header
# extract #define SCOTCH_VERSION, SCOTCH_RELEASE, SCOTCH_PATCHLEVEL
[ -n "$SCOTCH_VERSION" ] || \
SCOTCH_VERSION=$(
eval $(
sed -ne \
's/^ *#define *SCOTCH_\(VERSION\|RELEASE\|PATCHLEVEL\) *\([0-9][0-9]*\).*$/\1=\2/p' \
"$header"
)
set -- $VERSION $RELEASE $PATCHLEVEL
IFS="."
[ "$#" -gt 0 ] && echo "scotch-$*"
)
: "${SCOTCH_VERSION:=scotch}" # Failsafe value
# Accept widening of OpenFOAM label to scotch label (SCOTCH_Num)
# but reject narrowing here instead of in the code
case "$WM_LABEL_SIZE:$label" in
( 32:int32 | 32:int \
| 32:int64 | 32:long \
| 64:int64 | 64:long )
;;
(*)
if [ -n "$warn" ]
then
echo "$warn (label='$WM_LABEL_SIZE', ${header##*/} has '$label')"
fi
no_scotch
return 1
;;
esac
# Library name suffix (-int32 | -int64)
case "${library##*/}" in
(*-int32.*) export SCOTCH_LIBNAME_SUFFIX="-int32" ;;
(*-int64.*) export SCOTCH_LIBNAME_SUFFIX="-int64" ;;
esac
# OK
echo "scotch ($label) - $prefix"
export HAVE_SCOTCH=true
export SCOTCH_ARCH_PATH="$prefix"
export SCOTCH_INC_DIR="${header%/*}" # Basename
export SCOTCH_LIB_DIR="${library%/*}" # Basename
export SCOTCH_VERSION
##echo "DEBUG: header=$header" 1>&2
##echo "DEBUG: library=$library" 1>&2
}
# Search
# $1 : prefix (*_ARCH_PATH, system, ...)
#
# On success, return 0 and export variables
# -> HAVE_PTSCOTCH, PTSCOTCH_ARCH_PATH, PTSCOTCH_INC_DIR, PTSCOTCH_LIB_DIR
search_ptscotch()
{
local warn="==> skip ptscotch"
local incName="ptscotch.h"
local libName="libptscotch"
local localDir="scotch-int$WM_LABEL_SIZE"
local prefix="${1:-system}"
local header library
local mpiPrefix="$MPI_ARCH_PATH"
local mpiName="${MPI_ARCH_PATH##*/}"
# ----------------------------------
if isNone "$prefix"
then
[ -n "$warn" ] && echo "$warn (disabled)"
return 1
elif hasAbsdir "$prefix"
then
header=$(findFirstFile \
"$prefix/include/$FOAM_MPI/$incName" \
"$prefix/include/$localDir/$incName" \
"$prefix/include/ptscotch/$incName" \
"$prefix/include/scotch/$incName" \
"$prefix/include/$incName" \
"$mpiPrefix/include/$incName" \
"$prefix/include/$mpiName/$incName" \
"$prefix/include/${mpiName}-$(uname -m)/$incName" \
)
library=$(findExtLib \
"$FOAM_MPI/$libName${SCOTCH_LIBNAME_SUFFIX}" \
"$libName${SCOTCH_LIBNAME_SUFFIX}" \
"$FOAM_MPI/$libName${SCOTCH_LIBNAME_SUFFIX}" \
)
elif isSystem "$prefix"
then
header=$(findFirstFile \
"/usr/local/include/$localDir/$incName" \
"/usr/local/include/ptscotch/$incName" \
"/usr/local/include/scotch/$incName" \
"/usr/local/include/$incName" \
"/usr/include/$localDir/$incName" \
"/usr/include/ptscotch/$incName" \
"/usr/include/scotch/$incName" \
"/usr/include/$incName" \
"$mpiPrefix/include/$incName" \
"/usr/include/$mpiName/$incName" \
"$prefix/include/${mpiName}-$(uname -m)/$incName" \
)
prefix=$(sysPrefix "$header")
else
unset prefix
fi
# ----------------------------------
equalBaseName "${header%/*}" "$localDir" || unset localDir
# Header
[ -n "$header" ] || {
[ -n "$warn" ] && echo "$warn (no header)"
return 2
}
# Library
[ -n "$library" ] \
|| library=$(findLibrary -prefix="$prefix" -name="$libName" -local="$localDir") \
|| library=$(findLibrary -prefix="$mpiPrefix" -name="$libName" -local="$localDir") \
|| {
[ -n "$warn" ] && echo "$warn (no library)"
return 2
}
# ----------------------------------
# OK
echo "ptscotch - $prefix"
export HAVE_PTSCOTCH=true
export PTSCOTCH_ARCH_PATH="$prefix"
export PTSCOTCH_INC_DIR="${header%/*}" # Basename
export PTSCOTCH_LIB_DIR="${library%/*}" # Basename
##echo "DEBUG: header=$header" 1>&2
##echo "DEBUG: library=$library" 1>&2
}
# Output as per search_* function
have_scotch()
{
local warn="==> skip scotch"
local config="config.sh/scotch"
local file
if file="$("$WM_PROJECT_DIR"/bin/foamEtcFile "$config")"
then
. "$file"
else
[ -n "$warn" ] && echo "$warn (no $config)"
return 2
fi
search_scotch "$SCOTCH_ARCH_PATH"
}
# Output as per search_* function
have_ptscotch()
{
local warn="==> skip ptscotch"
if [ "$HAVE_SCOTCH" != true ]
then
echo "$warn (no serial scotch available?)"
return 1
fi
# Reuse old settings
[ -n "$PTSCOTCH_ARCH_PATH" ] || PTSCOTCH_ARCH_PATH="$SCOTCH_ARCH_PATH"
search_ptscotch "$PTSCOTCH_ARCH_PATH"
}
# Query settings
query_scotch()
{
local config="config.sh/scotch"
local file
if file="$("$WM_PROJECT_DIR"/bin/foamEtcFile -mode=o "$config")"
then
. "$file"
_process_query scotch "$SCOTCH_ARCH_PATH"
else
echo "(no $config)" 1>&2
echo "scotch=unknown"
fi
}
#------------------------------------------------------------------------------
# Reset
no_scotch
# Test/query
case "$1" in
-test | -debug-test)
[ "$1" = "-debug-test" ] && set -x
have_scotch && have_ptscotch
[ "$1" = "-debug-test" ] && set +x
echo_scotch
;;
-query)
query_scotch
;;
esac
#------------------------------------------------------------------------------
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