** Changed in: openblas (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1634142
Title:
Don't use openblas cmake builds
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you used the same skylake cpu on the ubuntu 14.04 version?
its probably a good bet to assume the issue was always there instead of it
being a regression. openblas is notorious for giving wrong results depending on
the hardware used.
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I'll just try to fix the bug itself tomorrow. It should be much easier
to trace it down now that I know that I probably need to compile it with
the default build target to be able to bisect it (since it worked fine
in Ubuntu 14.04). I'll let you know when I find the problem.
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if I had to guess the reason why the package does not work is that the
version in 16.04 does not detect skylake cpus and falls back to some
other cpu.
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the cmake change in the github issue does not fix the problem, it just causes
you to not use the broken code anymore.
can you provide a compile and runnable example for me to try?
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Huh, that's interesting. I encountered this bug while using the system
provided version of openblas on Ubuntu 16.04. And I just fixed the bug
in openblas itself by adjusting the cmake build files, so I assumed that
that was where the bug came from in the openblas version that was
provided by
what are you referring too?
the openblas package does not use cmake
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https://bugs.launchpad.net/bugs/1634142
Title:
Don't use openblas cmake builds
To manage notifications about this
