Switch back to using OpenBLAS for Ubuntu 22 #122
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Ubuntu 20 builds were switched to the default reference BLAS because of a bug with the OpenBLAS package. That bug does not seem to affect Ubuntu 22, so switch back to using OpenBLAS for Ubuntu 22, for consistency with all other R builds.
jmwoliver
approved these changes
Apr 28, 2022
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Switches the Ubuntu 22 R builds back to using OpenBLAS. When we added Ubuntu 20 support, there was a bug with the OpenBLAS package that caused hangs/crashes with R, so we replaced it with the (slower) default reference BLAS (#62). That bug doesn't affect Ubuntu 22 and was probably patched on Ubuntu 20 already, so we can switch back to using OpenBLAS. This change essentially reverts 1bedbc6 but for Ubuntu 22 (which was mostly copied from Ubuntu 20)
This change shouldn't break any existing installations of R on Ubuntu 22. You'll be able to reinstall R and continue using any previously installed packages. Ubuntu/Debian makes BLAS libraries swappable at runtime with the alternatives system, so you could also make this change on an existing installation by running
apt install libopenblas-dev, and R will automatically switch to using OpenBLAS. You can also revert back to using the default BLAS with theupdate-alternativescommand if you wanted to.