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How do libatlas3, liblapacke, and libopenblas0 interact in Focal?

us flag

I'm trying to figure out the interaction between the following library packages:

  • libatlas3-base
  • liblapacke
  • OpenBLAS
    • libopenblas0-openmp
    • libopenblas0-pthread
    • libopenblas0-serial

It looks like the OpenBLAS packages can only be used one at a time because they are in different subdirs shown here. How do I select the active one?

  • /usr/lib/x86_64-linux-gnu/openblas-openmp/libopenblas.so.0
  • /usr/lib/x86_64-linux-gnu/openblas-pthread/libopenblas.so.0
  • /usr/lib/x86_64-linux-gnu/openblas-serial/libopenblas.so.0

Once I've selected the active OpenBLAS implementation, will libatlas3 or liblapacke use the active implementation? How can you tell what they are using?

KJ7LNW avatar
us flag
See also: https://stackoverflow.com/a/69276806/14055985
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