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scipy.special.tests.test_mpmath::TestSystematic::test_pcfw fails on 32-bit intel #9250

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mwhudson opened this issue Sep 10, 2018 · 1 comment
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scipy.special.tests.test_mpmath::TestSystematic::test_pcfw fails on 32-bit intel #9250

mwhudson opened this issue Sep 10, 2018 · 1 comment
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defect A clear bug or issue that prevents SciPy from being installed or used as expected scipy.special
Milestone
1.2.0

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@mwhudson
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This is the last of my 32-bit intel failures today :)

Reproducing code example:

python3.6 runtests.py -t scipy.special.tests.test_mpmath::TestSystematic::test_pcfw -m full

Error message:

https://gist.github.com/mwhudson/4de914c033a53133a77a40fd08cc53e8

Scipy/Numpy/Python version information:

1.2.0.dev0+641bc92 1.14.5 sys.version_info(major=3, minor=6, micro=6, releaselevel='final', serial=0)
@rgommers rgommers added the defect A clear bug or issue that prevents SciPy from being installed or used as expected label Sep 12, 2018
@rgommers rgommers added this to the 1.2.0 milestone Sep 12, 2018
@rgommers
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This is also a test precision issue.

        assert_mpmath_equal(pcfw,
                            mpmath.pcfw, [Arg(-5, 5), Arg(-5, 5)], rtol=1e-8, n=100)

E               Max |adiff|: 9.94987e-10
E Max |rdiff|: 1.72855e-08

Changing to rtol=2e-8 should fix things. Would be good to get a confirmation of that.

mwhudson added a commit to mwhudson/scipy that referenced this issue Sep 13, 2018
@mwhudson
TST: relax some tolerances so tests pass with x87 math
19dbf82 
Fixes scipy#9250
Fixes scipy#9247
Fixes scipy#9248
@mwhudson mwhudson mentioned this issue Sep 13, 2018
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defect A clear bug or issue that prevents SciPy from being installed or used as expected scipy.special
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1.2.0
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@rgommers @mwhudson @pvanmulbregt