ATLAS
Contents
Introduction to ATLAS
BLAS are Basic Linear Algebra Subprograms written in Fortran. There are Level 1 (scalar and vector operations), Level 2 (scalar-matrix operations) and Level 3 (matrix-matrix operations) subprograms. ATLAS (Automatically Tuned Linear Algebra Software) will provide C and FORTRAN interfaces to a BLAS implementation optimized for a specific machine architecture. The ideal source of BLAS and LAPACK libraries are those provided by the microprocesor vendor such as AMD's ACML. However, these are not provided under a license that allows re-distribution without written consent from the vendor.
Project Homepage: http://www.netlib.org/blas/
Configuration Information
Patch the package:
patch -Np1 -i ../atlas-3.8.0-decl-fix-1.patch && patch -Np1 -i ../atlas-3.8.0-shared-libs-1.patch
Create a wrapper script to assist in building the shared libraries:
export BUILD_DIR=CBLFS-build && mkdir -pv ${BUILD_DIR} && cd ${BUILD_DIR}
cat > war << "EOF" #! /bin/bash # # war -- wrapper for the archiver # # Executed by ATLAS build as: # full_path/war ARCHIVER ARFLAGS LIBNAME.a OBJS.lo TOPDIR=$(echo $0 | sed 's/\(.*\)\/.*/\1/') PWD=$(pwd) ARCHIVER=$1 LIBRARY=$(echo $3 | sed 's/.*\/\(.*\)/\1/') OBJ_DIR=${TOPDIR}/CBLFS/$LIBRARY if [ ! -x $OBJ_DIR ]; then mkdir -p ${OBJ_DIR}/.libs; fi $ARCHIVER $@ shift 3 for obj in $@ ; do lobj=$(echo $obj | sed 's/\.o/\.lo/') ln -sf ${PWD}/$obj ${OBJ_DIR}/$obj ln -sf ${PWD}/$lobj ${OBJ_DIR}/$lobj ln -sf ${PWD}/.libs/$obj ${OBJ_DIR}/.libs/$obj done EOF
Make the script executable:
chmod a+x war
Non-Multilib
Compile the package:
../configure --cc=gcc --cflags="${BUILD}" --prefix=/usr --incdir=/usr/include/atlas \ -C ac gcc -F ac "${BUILD}" -C if gfortran -F if "${BUILD}" -Ss pmake "\make -j3" \ -Si cputhrchk 0 -b <BITS> && make && export RPATH=/usr/lib/blas/atlas && make LIBDIR=/usr/lib RPATH="${RPATH}" shared
Timing tests are critical for optimizing the performance of the libraries for your machine. Do not skip the tests.
for i in F77 C; do cd interfaces/blas/${i}/testing make sanity_test if [[ -d CBLFS/libptf77blas.a ]]; then make ptsanity_test fi done cd ../../../../ make time
Install the package:
mkdir -pv ${RPATH} && cd ./CBLFS/libs && cp -vP libatlas* ${RPATH} && cp -vP *blas* ${RPATH} && mkdir -pv /usr/include/atlas && install -v ../../../include/cblas.h /usr/include/atlas && install -v ../../../include/atlas_misc.h /usr/include/atlas && install -v ../../../include/atlas_enum.h /usr/include/atlas && install -v ../../include/*.h /usr/include/atlas
Multilib
32Bit
Compile the package:
../configure --cc=gcc --cflags="${BUILD32}" --prefix=/usr --libdir=/usr/lib64 --incdir=/usr/include/atlas \ -C ac gcc -F ac "${BUILD32}" -C if gfortran -F if "${BUILD32}" -Ss pmake "\make -j3" -Si cputhrchk 0 -b 32 && make && export RPATH=/usr/lib/blas/atlas && make LIBDIR=/usr/lib RPATH="${RPATH}" shared
Timing tests are critical for optimizing the performance of the libraries for your machine. Do not skip the tests.
for i in F77 C; do cd interfaces/blas/${i}/testing make sanity_test if [[ -d CBLFS/libptf77blas.a ]]; then make ptsanity_test fi done cd ../../../../ make time
Install the package:
mkdir -pv ${RPATH} && cd ./CBLFS/libs && cp -vP libatlas* ${RPATH} && cp -vP *blas* ${RPATH} && mkdir -pv /usr/include/atlas && install -v ../../../include/cblas.h /usr/include/atlas && install -v ../../../include/atlas_misc.h /usr/include/atlas && install -v ../../../include/atlas_enum.h /usr/include/atlas && install -v ../../include/*.h /usr/include/atlas
N32
Compile the package:
../configure --cc=gcc --cflags="${BUILDN32}" --prefix=/usr --libdir=/usr/lib64 --incdir=/usr/include/atlas \ -C ac gcc -F ac "${BUILDN32}" -C if gfortran -F if "${BUILDN32}" -Ss pmake "\make -j3" -Si cputhrchk 0 -b 32 && make && export RPATH=/usr/lib32/blas/atlas && make LIBDIR=/usr/lib32 RPATH="${RPATH}" shared
Timing tests are critical for optimizing the performance of the libraries for your machine. Do not skip the tests.
for i in F77 C; do cd interfaces/blas/${i}/testing make sanity_test if [[ -d CBLFS/libptf77blas.a ]]; then make ptsanity_test fi done cd ../../../../ make time
Install the package:
mkdir -pv ${RPATH} && cd ./CBLFS/libs && cp -vP libatlas* ${RPATH} && cp -vP *blas* ${RPATH} && mkdir -pv /usr/include/atlas && install -v ../../../include/cblas.h /usr/include/atlas && install -v ../../../include/atlas_misc.h /usr/include/atlas && install -v ../../../include/atlas_enum.h /usr/include/atlas && install -v ../../include/*.h /usr/include/atlas
64Bit
Compile the package:
../configure --cc=gcc --cflags="${BUILD64}" --prefix=/usr --libdir=/usr/lib64 --incdir=/usr/include/atlas \ -C ac gcc -F ac "${BUILD64}" -C if gfortran -F if "${BUILD64}" -Ss pmake "\make -j3" -Si cputhrchk 0 -b 64 && make && export RPATH=/usr/lib64/blas/atlas && make LIBDIR=/usr/lib64 RPATH="${RPATH}" shared
Timing tests are critical for optimizing the performance of the libraries for your machine. Do not skip the tests.
for i in F77 C; do cd interfaces/blas/${i}/testing make sanity_test if [[ -d CBLFS/libptf77blas.a ]]; then make ptsanity_test fi done cd ../../../../ make time
Install the package:
mkdir -pv ${RPATH} && cd ./CBLFS/libs && cp -vP libatlas* ${RPATH} && cp -vP *blas* ${RPATH} && mkdir -pv /usr/include/atlas && install -v ../../../include/cblas.h /usr/include/atlas && install -v ../../../include/atlas_misc.h /usr/include/atlas && install -v ../../../include/atlas_enum.h /usr/include/atlas && install -v ../../include/*.h /usr/include/atlas
Configuration Information
Create and install pkgconfig metadata files:
cat > blas.pc.in << "EOF" prefix=/usr exec_prefix=${prefix} libdir=/usr/<LIB>/blas/atlas includedir=${prefix}/include Name: blas Description: Automatically Tuned Linear Algebra Software F77 BLAS implementation Version: 3.8.0 URL: http://math-atlas.sourceforge.net/ Libs: -L${libdir} -lblas -latlas Libs.private: -lm -lgfortran EOF cat > cblas.pc.in << "EOF" prefix=/usr exec_prefix=${prefix} libdir=/usr/<LIB>/blas/atlas includedir=${prefix}/include Name: cblas Description: Automatically Tuned Linear Algebra Software C BLAS implementation Version: 3.8.0 URL: http://math-atlas.sourceforge.net/ Libs: -L${libdir} -lcblas -latlas Libs.private: -lm -lgfortran Cflags: -I${includedir} EOF
Non-Multilib or 32-Bit
sed -i 's/<LIB>/lib/' blas.pc.in && sed -i 's/<LIB>/lib/' cblas.pc.in && cp -v blas.pc.in /usr/lib/pkgconfig/blas.pc && cp -v cblas.pc.in /usr/lib/pkgconfig/cblas.pc
N32
sed -i 's/<LIB>/lib32/' blas.pc.in && sed -i 's/<LIB>/lib32/' cblas.pc.in && cp -v blas.pc.in /usr/lib32/pkgconfig/blas.pc && cp -v cblas.pc.in /usr/lib32/pkgconfig/cblas.pc
64-Bit
sed -i 's/<LIB>/lib64/' blas.pc.in && sed -i 's/<LIB>/lib64/' cblas.pc.in && cp -v blas.pc.in /usr/lib64/pkgconfig/blas.pc && cp -v cblas.pc.in /usr/lib64/pkgconfig/cblas.pc
Contents
Installed Libraries: | libatlas.{a,so}, libcblas.{a,so}, libblas{.a,so} |
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Short Description
libatlas | is the main ATLAS library, providing low-level routines for all interface libraries. |
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libcblas | is the C library with optimized BLAS functions. |
libblas | is the FORTRAN library with optimized BLAS functions. |