flexiblas を Homebrew でインストール

プロジェクトリンク

• ホームページ

コマンドとエイリアス

• flexiblas
• flexiblas-config

プロジェクトの歴史

The project dates its copyright to 2013-2025 and describes itself as a wrapper that provides a GNU Fortran-compatible BLAS/LAPACK interface while dispatching calls to selectable backend implementations such as Netlib BLAS, OpenBLAS, ATLAS, Intel MKL, and BLIS.

The official project page frames FlexiBLAS around a practical HPC problem: BLAS is central to numerical software, but benchmarking, debugging, and tuning often require trying different BLAS implementations. FlexiBLAS makes that switch a runtime choice controlled by configuration files and environment variables.

採用の歴史

FlexiBLAS is packaged beyond source tarballs: the official page documents installation through the project's Debian/Ubuntu APT repository, Fedora/EPEL dnf packages, and the FreeBSD ports collection. It is also available through Homebrew, MacPorts, and Fedora package metadata in the supplied input.

The project added integration points for scientific tools, including a GNU Octave interface and an R interface maintained separately, which helped make backend switching visible to users of higher-level numerical environments.

使われ方

Users link software against libflexiblas as they would link a reference BLAS, then choose the actual backend through configuration files, the FLEXIBLAS environment variable, or the flexiblas command-line tool. The same mechanism supports per-system, per-user, and per-host defaults.

Package users care about the split between normal and 64-bit-integer builds: official documentation notes suffixed library, directory, command, and configuration names such as flexiblas64 and flexiblasrc64 when INTEGER8 support is enabled.

パッケージ好きにとっての重要性

FlexiBLAS is interesting to package maintainers because it turns BLAS backend selection into policy and configuration rather than a relink step. That is valuable in distributions and HPC modules where multiple BLAS providers coexist and users need repeatable performance comparisons.

The package also exposes the subtle ABI problem behind 'just swap libblas.so': not every BLAS/LAPACK provider is arranged as one compatible shared library, so FlexiBLAS wraps multi-file providers into a single selectable backend.

タイムライン

• 2013: Project copyright period begins for FlexiBLAS.
• 2015: FlexiBLAS material was presented at OctConf through an official project poster.
• 2018: FlexiBLAS talks and posters appeared at GAMM, OVGU Magdeburg, and CoSaS according to the official project page.
• 2021: Official material included an EasyBuild tech talk about FlexiBLAS.
• 2025: Version 3.5.0 was published on the official project page and repository.

Related projects

• Related BLAS/LAPACK implementations named by the project include Netlib BLAS, OpenBLAS, ATLAS, Intel MKL, and BLIS.
• Related scientific integration projects include the GNU Octave add-on and the separately hosted r-flexiblas R interface.

ソース

• https://gitlab.mpi-magdeburg.mpg.de/software/flexiblas-release
• https://www.mpi-magdeburg.mpg.de/projects/flexiblas