[issue21162] code in multiprocessing.pool freeze if inside some code from scikit-learn (and probably liblinear) executed on ubuntu 12.04 64 Bit
Ivan K added the comment: This behaviour was reproduced on Ubuntu 12.04 and on Centos 7 (centos image running on vagrant) so I don't expect this is ddistro specific -- ___ Python tracker <http://bugs.python.org/issue21162> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21162] code in multiprocessing.pool freeze if inside some code from scikit-learn (and probably liblinear) executed on ubuntu 12.04 64 Bit
Ivan K added the comment: Sorry, forget to answer. I think I know the reason. Issue I think placed inside ATLAS library. Issue not reproducable on Mac OS X because it's have a bit different thread model. The only single platform is Linux (not tested on Windows btw). So main guess right now that this code fail if scikit-learn are compiled against a singlethread ATLAS. Then paralleling code brokes. However there is very few information regarding how to build it with Multithreaded ATLAS so I'm still not 100% confident. -- status: closed -> open ___ Python tracker <http://bugs.python.org/issue21162> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21162] code in multiprocessing.pool freeze if inside some code from scikit-learn (and probably liblinear) executed on ubuntu 12.04 64 Bit
Ivan K added the comment: Yes, it work fine and output was LogisticRegression(C=1.0, class_weight=None, dual=False, fit_intercept=True, intercept_scaling=1, penalty=l2, random_state=None, tol=0.0001) -- ___ Python tracker <http://bugs.python.org/issue21162> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21162] code in multiprocessing.pool freeze if inside some code from scikit-learn (and probably liblinear) executed on ubuntu 12.04 64 Bit
Ivan K added the comment: Sorry, stupdi question. Forget that this is from my gist -- ___ Python tracker <http://bugs.python.org/issue21162> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21162] code in multiprocessing.pool freeze if inside some code from scikit-learn (and probably liblinear) executed on ubuntu 12.04 64 Bit
Ivan K added the comment: Sorry, could you specify what is 'func' ? -- ___ Python tracker <http://bugs.python.org/issue21162> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21162] code in multiprocessing.pool freeze if inside some code from scikit-learn (and probably liblinear) executed on ubuntu 12.04 64 Bit
Ivan K added the comment: Yes, I'm not using any tool. Code just not working. -- ___ Python tracker <http://bugs.python.org/issue21162> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21162] code in multiprocessing.pool freeze if inside some code from scikit-learn (and probably liblinear) executed on ubuntu 12.04 64 Bit
Ivan K added the comment: Sorry, I'm not sure I describe it correct. Freeze that means = goes fozen, so stop progress. It's do no do anything, but computations still load single core of my cpu for 100% untill I do not kill the python process. But the same code work's fine if executed outside pool, or on the different platforms (like Mac for example), my friend run it successfully, but for me it not works. So it's look like pretty unpredictable issue with conflicting OS, CPU, and Python I'm afraid. -- ___ Python tracker <http://bugs.python.org/issue21162> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21162] code in multiprocessing.pool freeze if inside some code from scikit-learn (and probably liblinear) executed on ubuntu 12.04 64 Bit
New submission from Ivan K: Here is a code. https://gist.github.com/anonymous/9994217 When I run it in freeze and never end. If I run it without pool with loop or joblib - it works fine. Also there is a question on stackoverflow: http://stackoverflow.com/q/22881850/1888017 Python 2.7.6/2.7.3, cpu core i7 if it's important -- components: Library (Lib) messages: 215620 nosy: Ivan.K priority: normal severity: normal status: open title: code in multiprocessing.pool freeze if inside some code from scikit-learn (and probably liblinear) executed on ubuntu 12.04 64 Bit versions: Python 2.7 ___ Python tracker <http://bugs.python.org/issue21162> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
