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Use FlexiBLAS on RHEL 9 for R 4.3.0 and above

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R 4.2.3 and below continue to use shared BLAS - OpenBLAS for backward compat.
This commit is contained in:
Greg Lin 2023-04-18 18:57:04 -05:00
commit 0ef67edd08
1 changed files with 64 additions and 16 deletions
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15
builder/package.centos-8
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@ -10,7 +10,20 @@ if [[ "${R_VERSION}" =~ ^3 ]]; then
pcre_lib='pcre-devel'
fi
# create post-install script required for openblas
# Create post-install script required for OpenBLAS.
#
# On RHEL and SUSE, we link R against the internal shared BLAS to make the
# R binaries more portable and allow users to switch BLAS implementations without
# having to recompile R. We default to OpenBLAS, but users may prefer other implementations.
#
# Binary packages built against the shared BLAS are also more portable and may be used
# with the default R distributed by RHEL/SUSE, or other R installations using
# shared BLAS and configured with a different BLAS (such as Microsoft R Open with MKL).
# This is especially important for Posit Package Manager's binary packages.
#
# However, as of R 4.2.3, EPEL 8's R no longer uses shared BLAS and now links to an
# external OpenBLAS (OpenMP). This means EPEL R no longer has a swappable BLAS and
# is no longer compatible with these R builds.
cat <<EOF >> /post-install.sh
mv ${R_INSTALL_PATH}/lib/R/lib/libRblas.so ${R_INSTALL_PATH}/lib/R/lib/libRblas.so.keep
ln -s /usr/lib64/libopenblasp.so.0 ${R_INSTALL_PATH}/lib/R/lib/libRblas.so