openblas64 ☆

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Description:
Optimized BLAS library

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: math linear-algebra blas hpc scientific-computing

Install: brew install openblas64

About:
OpenBLAS is an optimized BLAS library based on GotoBLAS2. It provides optimized implementations of Level 1, 2, and 3 BLAS functions, including single and double precision, complex and real, for various architectures. The 64-bit variant uses 64-bit integers for API compatibility with high-performance computing environments requiring large datasets.

Key Features:

Multi-architecture optimized kernels
Multi-threading support via OpenMP or pthreads
LAPACK compatibility layer
64-bit integer API support

Use Cases:

High-performance numerical computing in scientific applications
Accelerating linear algebra operations for machine learning frameworks
Serving as a backend for numpy, R, and Julia

Alternatives:

mkl – Intel MKL offers superior performance on Intel CPUs but is proprietary
atlas – ATLAS auto-tunes at compile-time but generally yields lower performance than OpenBLAS

Version History

Detected	Version	Rev	Change	Commit
Oct 4, 2025 3:04pm		0	VERSION_BUMP	87603448
Oct 4, 2025 12:28pm		0	NEW	74d24a49