linbox-team/fflas-ffpack

test-fgesv failure

Opened this issue · 2 comments

orlitzky commented

One of our developers noticed a failure in this test on Gentoo (x86_64 with gcc-11.x).

I've attached the build.log and test-suite.log from that report so that this issue is self-contained.

ClementPernet commented

Sorry, but I can't reproduce this bug. I tried with the same configure options (namely disabling all intrinsics except sse and sse2, precompilation enabled, and static lib disabled):

  • on a sandybridge server (same generation as yours) with gcc-10 and Debian
  • on a broadwell laptop with gcc-11 and linux-mint
    On both instances I was using openblas.
    This is very odd that that on your run, only test-fgesv failed, as it has nothing special, besides calling fgemm, ftrsm and PLUQ, which are extensively tested in test-fgemm, test-ftrsv and test-lu.
orlitzky commented

I've also been unable to reproduce it, but nothing looks out of place in the build logs, so I'd hate to blame it on ghosts. The failure occurred on an automated build machine, so it may not even be easy for the reporter to reproduce it. If nothing else, I'll wait a version or two and then re-enable the test to see if it fails again.