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openblas

brew install openblas v0.3.33 BSD-3-Clause AND BSD-2-Clause-Views AND BSD-3-Clause-Open-MPI AND BSD-2-Clause keg-only

Optimized BLAS library providing fast linear algebra operations (matrix multiplication, factorization, etc.).

Why you might care

OpenBLAS offers faster performance than Apple's built-in Accelerate framework for many workloads and supports more CPU architectures. Install it when building numerical software (NumPy, SciPy, R, Julia) that requires tuned BLAS routines, or when you need explicit control over which BLAS implementation your dependencies link against. It's keg-only because macOS already ships BLAS in Accelerate.framework.

Categories

library scientific math

Alternatives

Accelerate.framework LAPACK MKL ATLAS
21.2k
30-day installs · #226
91.9k
90-day · #190
312.9k
365-day · #208

Runtime dependencies

gcc libomp

Links

Keg-only reason

:shadowed_by_macos — macOS provides BLAS in Accelerate.framework

Blurb generated by claude-haiku-4-5 on today.

Raw metadata 
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  "desc": "Optimized BLAS library",
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  "why_use_this": "OpenBLAS offers faster performance than Apple\u0027s built-in Accelerate framework for many workloads and supports more CPU architectures. Install it when building numerical software (NumPy, SciPy, R, Julia) that requires tuned BLAS routines, or when you need explicit control over which BLAS implementation your dependencies link against. It\u0027s keg-only because macOS already ships BLAS in Accelerate.framework."
}