Il 30/04/20 03:39, Dirk Eddelbuettel ha scritto:
On 30 April 2020 at 03:26, Samuele Carcagno wrote:
| I'm not familiar with the internals of `viridisLite`, so I'm not sure
| I'd be able to help there. I could open a bug report on the
| `viridisLite` repo and see if the author has suggestions on how to
| narrow down the issue.
It would help if someone running Ubuntu 20.04 could reproduce.
after some further investigation I found out that the issue was related
to some calls to the `solve` function in `make.rgb`, and indeed running
`example(solve)` would hang my R session. After I changed the default
BLAS with:
sudo update-alternatives --config libblas.so.3-x86_64-linux-gnu
the problem disappeared. The BLAS output of `sessionInfo` now that
`solve` is working is:
Matrix products: default
BLAS: /usr/lib/x86_64-linux-gnu/blas/libblas.so.3.9.0
LAPACK: /usr/lib/x86_64-linux-gnu/openblas-pthread/liblapack.so.3
while before when `solve` was not working it was:
Matrix products: default
BLAS: /usr/lib/x86_64-linux-gnu/openblas-pthread/libblas.so.3
LAPACK: /usr/lib/x86_64-linux-gnu/openblas-pthread/liblapack.so.3
so it seems the issue is with the Ubuntu package `libopenblas0-pthread`
and has nothing to do with R. I don't know why openblas-pthread was the
default BLAS on my system.
Thank you for your help.
Best,
Sam
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