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Install flexiblas with Homebrew
BLAS and LAPACK wrapper library with runtime exchangable backends. Version 3.5.0 via Homebrew; verified 2026-06-15.
install
Additional install commands
overview
Package summary
BLAS and LAPACK wrapper library with runtime exchangable backends
Project links
Commands and aliases
- flexiblas
- flexiblas-config
history
Project history and usage
FlexiBLAS is a BLAS and LAPACK wrapper library from the Max Planck Institute for Dynamics of Complex Technical Systems. Its niche is runtime switching of numerical linear algebra backends without rebuilding or relinking applications.
Project history
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.
Adoption history
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.
How it is used
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.
Why package nerds care
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.
Timeline
- 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.
Sources
security posture
Risk level: yellow
generalized runtime or code generation signal.
Risk classifier
yellow risk · medium confidence · runtime
Why
- generalized runtime or code generation signal
Signals
- text:runtime
Install behavior
- No Homebrew bottle metadata was recorded.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
local files
Configuration and credential file locations
These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval.
Configuration files
Config paths the tool may read or write during local use.
- Unix
CMAKE_INSTALL_PREFIX/etc/flexiblasrcCMAKE_INSTALL_PREFIX/etc/flexiblasrc.d/*.conf~/.flexiblasrc~/.flexiblasrc.$(hostname)$FLEXIBLAS_CONFIGCMAKE_INSTALL_PREFIX/etc/flexiblasrc64~/.flexiblasrc64
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
flexiblas | executable | indexed executable | Discovered from the local executable index. |
flexiblas-config | executable | indexed executable | Discovered from the local executable index. |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-08-03
manager version3.5.0
manager updated2026-06-15
local dataunknown
upstreamnot available
latest detectednot detected
- okNo freshness warnings were generated.
install metadata
Package metadata
| Package key | brew:flexiblas |
|---|---|
| Version | 3.5.0 |
| Package manager | Homebrew |
| Homepage | https://www.mpi-magdeburg.mpg.de/projects/flexiblas |
| Last updated | 2026-06-15T09:01:50+09:00 |
| Pulse | updated |
| Bottle | not recorded |
| Service | none declared |
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- Nucleus package database
- curated configuration and credential file locations
- curated package history
- pkgdb category and tag curation