29 Nov
2018
29 Nov
'18
10:28 a.m.
Hi, 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 perf.haskell.org that probably shadowed this. Cheers, Joachim -- Joachim Breitner mail@joachim-breitner.de http://www.joachim-breitner.de/