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Fix leftover wiki links in the README and add java insights from issue #5109 #5661

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martin-frbg merged 3 commits into from
Mar 5, 2026
+11 −5
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Fix leftover wiki links in the README and add java insights from issue #5109 #5661

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754ad2a
Fix leftover wiki links and add java insights from issue 5109
martin-frbg Mar 4, 2026
98864c7
fix reintroduced typo again
martin-frbg Mar 4, 2026
1590d8b
fix install.md link for cortex-m
martin-frbg Mar 4, 2026
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16 changes: 11 additions & 5 deletions README.md
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Expand Up @@ -277,23 +277,29 @@ Please note that it is not possible to combine support for different architectur
### Supported OS

- **GNU/Linux**
- **MinGW or Visual Studio (CMake)/Windows**: Please read <https://github.com/xianyi/OpenBLAS/wiki/How-to-use-OpenBLAS-in-Microsoft-Visual-Studio>.
- **Darwin/macOS/OSX/iOS**: Experimental. Although GotoBLAS2 already supports Darwin, we are not OSX/iOS experts.
- **MinGW or Visual Studio (CMake)/Windows**: Please read <https://github.com/OpenMathLib/OpenBLAS/docs/nstall.md#visual-studio-native-windows-abi>.
- **Darwin/macOS/OSX/iOS**: Already supported on PPC and x86 by the original GotoBLAS, now also on ARM64 but we are not OSX/iOS experts.
- **FreeBSD**: Supported by the community. We don't actively test the library on this OS.
- **OpenBSD**: Supported by the community. We don't actively test the library on this OS.
- **NetBSD**: Supported by the community. We don't actively test the library on this OS.
- **DragonFly BSD**: Supported by the community. We don't actively test the library on this OS.
- **Android**: Supported by the community. Please read <https://github.com/xianyi/OpenBLAS/wiki/How-to-build-OpenBLAS-for-Android>.
- **AIX**: Supported on PPC up to POWER10
- **Android**: Supported by the community. Please read <https://github.com/OpenMathLib/OpenBLAS/docs/install.md#android>.
- **AIX**: Supported on PPC up to POWER10 but testing is increasingly problematic due to lack of publicly available systems
- **Haiku**: Supported by the community. We don't actively test the library on this OS.
- **SunOS**: Supported by the community. We don't actively test the library on this OS.
- **Cortex-M**: Supported by the community. Please read <https://github.com/xianyi/OpenBLAS/wiki/How-to-use-OpenBLAS-on-Cortex-M>.
- **Cortex-M**: Supported by the community. Please read <https://github.com/OpenMathLib/OpenBLAS/docs/install.md#cortex-m>.

## Usage

Statically link with `libopenblas.a` or dynamically link with `-lopenblas` if OpenBLAS was
compiled as a shared library.

### Considerations for using the library from Java

The default stack size of only 1MB may be too small, especially if you built OpenBLAS to support larger matrix sizes than provided for by the default settings. Use the -Xss option to request a larger stack size if you encounter problems.

When a Windows build of OpenBLAS was created using the MINGW gfortran (for the LAPACK parts), the java application may hang on startup due to a deadlock between the gfortran runtime library initialization and any pipes created by a Win11/SBT/Play Framework environment. Use -Djdk.console=jdk.internal.le to work around this.

### Setting the number of threads using environment variables

Environment variables are used to specify a maximum number of threads.
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