nofib output difference

Joachim Breitner mail at
Thu Nov 29 15:28:57 UTC 2018


Am Donnerstag, den 29.11.2018, 10:13 -0500 schrieb Ben Gamari:
> Yikes, this is indeed somewhat worrying. I see the same result as you
> for result1 and result2 but a slightly different number for result3.
> Looking at this particular test it appears to be quite numerically
> unstable. I count over ten distinct sets of .stdout files in
> spectral/fft2, some of which match what the results I observe quite
> closely.
> Overall we should indeed make sure these get tested in CI.
> Do you know how long ago this change occurred?

Not easily, there were other breakages on that
probably shadowed this.


Joachim Breitner
  mail at

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