OpenBLAS support for Ubuntu 20.04 (Focal)

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OpenBLAS support for Ubuntu 20.04 (Focal) #215

Closed michaelmayer2 closed 6 months ago

michaelmayer2 commented 6 months ago

Previously we had re-added OpenBLAS support to our Jammy builds following a bug fix Ubuntu release. The same fix was released for Ubuntu Focal as per https://bugs.launchpad.net/ubuntu/+source/openblas/+bug/1860601/comments/14

This PR is reintroducing support for OpenBLAS for R builds in Ubuntu 20.04 (Focal) so that our users can benefit from additional performance as a result.

PR has been tested successfully on R 3.4.3, 4.1.3 and 4.4.0.

glin commented 6 months ago

This is now deployed with all the Ubuntu 20 packages rebuilt.