2015-07-10 18:31 GMT+02:00 Nathaniel Smith <n...@pobox.com>: > On Jul 10, 2015 10:51 AM, "Olivier Grisel" <olivier.gri...@ensta.org> wrote: >> >> I narrowed down the segfault from the scipy tests on my machine to: >> >> OPENBLAS_CORETYPE='Barcelona' /c/Python34_x64/python -c"import numpy >> as np; print(np.linalg.svd(np.ones((129, 129), dtype=np.float64))" >> >> Barcelona is the architecture detected by OpenBLAS. If I force Nehalem >> or if I reduce the matrix to shape (128, 128), it no longer segfaults. >> To debug it further I think I have to write a test program in C that >> uses the sgesdd function of the libopenblaspy.dll or against the >> official libopenblas.dll. Setting the dev environment under windows is >> painful though. > > I assume you've already checked that this is a Windows specific issue?
I am starting a rackspace VM with linux to check. Hopefully it will also be detected as Barcelona by openblas. On my laptop I have a Sandybridge coretype (I just checked). -- Olivier http://twitter.com/ogrisel - http://github.com/ogrisel _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
