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OSX segfault in multiprocessing #152

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rhoef opened this issue Dec 3, 2013 · 1 comment
Open

OSX segfault in multiprocessing #152

rhoef opened this issue Dec 3, 2013 · 1 comment
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bug mac-built

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@rhoef
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rhoef commented Dec 3, 2013

The Problem comes from numpy that cannot use the Accelerate.Framework in python multiprocessing.

The segfaults are related to

A workaround on MacOSX is to compile numpy and use ATLAS instead of the native Accelerate.Framework. Further, there needs to be an additional import numpy statement in the core_helper function.
Otherwise the fastest process wins and all other segfault.

Here is an installation guide for ATLAS and numpy (https://github.com/CellCognition/cecog/wiki/Build-build-accelerated-numpy-using-ATLAS-on-Mac-OSX).
@rhoef rhoef closed this as completed Dec 3, 2013
rhoef added a commit that referenced this issue Dec 3, 2013
@rhoef
additional import, fixing #152
fc6b5dd
@rhoef rhoef mentioned this issue Dec 3, 2013
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@rhoef rhoef reopened this Dec 3, 2013
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rhoef commented Dec 3, 2013

it still happens

rhoef added a commit that referenced this issue Dec 4, 2013
@rhoef
additional import, fixing #152
1016946
@rhoef rhoef mentioned this issue Feb 27, 2014
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