Can you try if it segfaults on X[5000:6000] and if so, it would be great if you could send me the ndarray - then I can reproduce the error and see what's wrong.
2011/11/3 Andreas Müller <[email protected]>: > On 11/03/2011 06:10 PM, Peter Prettenhofer wrote: >> Hi Andreas, >> >> can you run the following line and send me the results (assume your >> data is stored in `X`):: >> >> print X.flags >> > train_data.flags > C_CONTIGUOUS : True > F_CONTIGUOUS : False > OWNDATA : True > WRITEABLE : True > ALIGNED : True > UPDATEIFCOPY : False > > Seems reasonable to me. > Thanks, > Andy > >> 2011/11/3 Andreas Müller <[email protected]>: >>> Hi folks. >>> Today I ran across a segfault doing sgd multi class classification. >>> I tracked the error down to sgd_fast but don't know how to proceed. >>> My data has shape (50000, 13824) and is dense, the parameters >>> of the classifier are: >>> SGDClassifier(loss="hinge", penalty="l2") >>> >>> I ran it through scaler and the features seem to be in a reasonable >>> range and there are no infs or nans. >>> If I train only on the first 5000 of the 13824 features, I get >>> reasonable results, for 6000 it segfaults. The features split >>> into three parts of equal lenght and training on any of >>> these parts works fine. >>> >>> My RAM is big and empty during the crash. >>> >>> Does anyone have any idea how to find the problem? >>> >>> Cheers, >>> Andy >>> >>> ------------------------------------------------------------------------------ >>> RSA(R) Conference 2012 >>> Save $700 by Nov 18 >>> Register now >>> http://p.sf.net/sfu/rsa-sfdev2dev1 >>> _______________________________________________ >>> Scikit-learn-general mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/scikit-learn-general >>> >> >> > > > ------------------------------------------------------------------------------ > RSA(R) Conference 2012 > Save $700 by Nov 18 > Register now > http://p.sf.net/sfu/rsa-sfdev2dev1 > _______________________________________________ > Scikit-learn-general mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/scikit-learn-general > -- Peter Prettenhofer ------------------------------------------------------------------------------ RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 _______________________________________________ Scikit-learn-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/scikit-learn-general
