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# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $
DESCRIPTION="Manage installed BLAS implementations. (virtual/blas)"
VERSION="1.0"
MAINTAINER="Danny van Dyk <kugelfang@gentoo.org>"
BLAS_IMPLEMENTATIONS="ACML ATLAS reference"
BLAS_PROFILES="C F77"
# check_* $libdir
# implementation specific check functions
check_ACML() {
# libacml.so provides C/C++ and FORTRAN 77 support
[[ -f ${1}/libacml.so ]] && echo "C F77"
}
check_ATLAS() {
[[ -d ${1}/blas/atlas ]] || return
local ret
# libblas.so provides FORTRAN 77 support
[[ -f ${1}/blas/atlas/libblas.so ]] && ret="F77"
# libcblas.so provides C/C++ support
[[ -f ${1}/blas/atlas/libcblas.so ]] && ret="${ret} C"
echo "${ret}"
}
check_reference() {
[[ -d ${1}/blas/reference ]] || return
local ret
[[ -f ${1}/blas/reference/libblas.so ]] && ret="F77"
[[ -f ${1}/blas/reference/libcblas.so ]] && ret="${ret} C"
echo "${ret}"
}
# package $impl
# Prints the name of the package providing $impl
package() {
case ${1} in
ACML) echo "sci-libs/ACML";;
ATLAS) echo "sci-libs/blas-atlas";;
MKL) echo "sci-libs/mkl";;
reference) echo "sci-libs/blas-reference";;
*) ;;
esac
}
# is_active_* $lib
# return 0 if $lib points to an active BLAS implementation of profile *
is_active_ACML() {
[[ -L ${1} ]] || return 1
local lib=$(/bin/readlink -sn ${1})
[[ $(basename ${lib}) == libacml.so ]] \
&& return 0
return 1
}
is_active_ATLAS() {
[[ -L ${1} ]] || return 1
local lib=$(/bin/readlink -sn ${1})
local dir=${lib%/*}
[[ ${dir##*/} == atlas ]] \
&& return 0
return 1
}
is_active_MKL() {
[[ -L ${1} ]] || return 1
local lib=$(/bin/readlink -sn ${1})
}
is_active_reference() {
[[ -L ${1} ]] || return 1
local lib=$(/bin/readlink -sn ${1})
local dir=${lib%/*}
[[ ${dir##*/} == reference ]] \
&& return 0
return 1
}
# setup_* $libdir $profile
# Implementation specific activation/setup functions
setup_ACML() {
if [[ ${2} == C ]] ; then
ln -sf ${1}/libacml.so ${1}/libcblas.so
ln -sf ${1}/libacml.so ${1}/libcblas.so.0
ln -sf ${1}/libacml.a ${1}/libcbls.a
elif [[ ${2} == F77 ]] ; then
ln -sf ${1}/libacml.so ${1}/libblas.so
ln -sf ${1}/libacml.so ${1}/libblas.so.0
ln -sf ${1}/libacml.a ${1}/libblas.a
else
die "Illegal profile: ${2}"
fi
}
setup_ATLAS() {
if [[ ${2} == C ]] ; then
ln -sf ${1}/blas/atlas/libblas.so ${1}/libcblas.so
ln -sf ${1}/blas/atlas/libblas.so ${1}/libcblas.so.0
ln -sf ${1}/blas/atlas/libblas.a ${1}/libcbls.a
elif [[ ${2} == F77 ]] ; then
ln -sf ${1}/blas/atlas/libblas.so ${1}/libblas.so
ln -sf ${1}/blas/atlas/libblas.so ${1}/libblas.so.0
ln -sf ${1}/blas/atlas/libblas.a ${1}/libblas.a
else
die "Illegal profile: ${2}"
fi
}
setup_reference() {
if [[ ${2} == F77 ]] ; then
ln -sf ${1}/blas/reference/libblas.so ${1}/libblas.so
ln -sf ${1}/blas/reference/libblas.so ${1}/libblas.so.0
ln -sf ${1}/blas/reference/libblas.a ${1}/libblas.a
else
die "Illegal profile: ${2}"
fi
}
### list action ###
describe_list() {
echo "List all installed BLAS implementations."
}
do_list() {
local libdirs libdir
[[ -z "$@" ]] \
&& libdirs="$(list_libdirs)" \
|| libdirs="$@"
for libdir in ${libdirs} ; do
C_PROFILES=()
for x in $(load_config blas C_${libdir}) ; do
C_PROFILES=("${C_PROFILES[@]}" "${x}\t($(package ${x}))")
done
F77_PROFILES=()
for x in $(load_config blas F77_${libdir}) ; do
F77_PROFILES=("${F77_PROFILES[@]}" "${x}\t($(package ${x}))")
done
if [[ -n ${C_PROFILES} ]] || [[ -n ${F77_PROFILES} ]] ; then
echo "--- Installed in ${ROOT}/usr/${libdir} ---"
if [[ -n ${C_PROFILES} ]] ; then
write_list_start "C/C++ profiles"
write_numbered_list ${C_PROFILES[@]}
echo
fi
if [[ -n ${F77_PROFILES} ]] ; then
write_list_start "FORTRAN 77 profiles"
write_numbered_list ${F77_PROFILES[@]}
echo
fi
fi
done
}
### select action ###
describe_setup() {
echo "Setup one of the installed BLAS implementations as the active implementation."
}
do_setup() {
local libdirs=$(list_libdirs) profiles=${BLAS_PROFILES} impl libdir prof
[[ ${#1} == 0 ]] && die -q "Please specify the implementation to setup as active."
impl=${1}
shift
has "BLAS_IMPLEMENTATIONS" ${impl} \
|| die -q "Illegal implementation: ${impl}"
for param in ${@} ; do
echo "param: ${param}"
if has "libdirs" ${param} ; then
mylibdirs=(${mylibdirs[@]} ${param})
elif has "BLAS_PROFILES" ${param} ; then
myprofiles=(${myprofiles[@]} ${param})
else
die -q "Illegal parameter: ${param}."
fi
done
[[ -n ${mylibdirs[@]} ]] && libdirs=${mylibdirs[@]}
[[ -n ${myprofiles[@]} ]] && profiles=${myprofiles[@]}
echo "libdirs: ${libdirs}"
echo "profiles: ${profiles}"
for libdir in ${libdirs} ; do
for prof in ${profiles} ; do
setup_${impl} ${ROOT}/usr/${libdir} ${prof}
store_config blas "${prof}_${libdir}_CURRENT" ${impl}
done
done
}
### show action ###
describe_show() {
echo "Show the currently active BLAS implementations."
}
do_show() {
local libdirs=$(list_libdirs) profiles=${BLAS_PROFILES} libdir lib prefix
[[ -n ${1} ]] && has "libdirs" ${1} && libdirs=${1}
[[ -n ${2} ]] && has "profiles" ${2} && profiles=${2}
for libdir in ${libdirs} ; do
[[ ${#libdirs} -eq 1 ]] || prefix="${ROOT}/usr/${libdir}"
for prof in ${profiles} ; do
[[ ${#profiles} -eq 1 ]] || myprefix="${prefix}\t${prof}"
[[ ${prof} == C ]] && lib=libcblas.so
[[ ${prof} == F77 ]] && lib=libblas.so
impl=$(load_config blas "${prof}_${libdir}_CURRENT")
[[ -z ${impl} ]] && die -q "Configuration file is broken. Please run update."
if is_active_${impl} ${ROOT}/usr/${libdir}/${lib} ; then
echo -e "${myprefix}\tActive BLAS is ${impl} ($(package ${impl}))."
else
die -q "Configuration file is out of date. Please run update."
fi
done
done
}
### update action ###
describe_update() {
echo "Update the configuration file with data about all installed BLAS implementations."
}
do_update() {
local lib libdir impl prof
[[ -e ${ROOT}/etc/eclectic/blas/blas.config ]] \
&& rm ${ROOT}/etc/eclectic/blas/blas.config
for libdir in $(list_libdirs) ; do
[[ -e ${ROOT}/usr/${libdir}/ ]] || continue
for impl in ${BLAS_IMPLEMENTATIONS} ; do
for prof in $(check_${impl} ${ROOT}/usr/${libdir}/) ; do
if has "BLAS_PROFILES" ${prof} ; then
add_config blas "${prof}_${libdir}" ${impl}
[[ ${prof} == C ]] && lib=${ROOT}/usr/${libdir}/libcblas.so
[[ ${prof} == F77 ]] && lib=${ROOT}/usr/${libdir}/libblas.so
is_active_${impl} ${lib} \
&& store_config blas "${prof}_${libdir}_CURRENT" ${impl}
else
die -q "Unknown profile: \"${prof}\". Valid profiles: ${BLAS_PROFILES}"
fi
done
done
done
}
# vim: set ft=ebuild
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