[Numpy-discussion] Efficient orthogonalisation with scipy/numpy

Gael Varoquaux gael.varoquaux@normalesup....
Tue Jan 19 16:05:01 CST 2010


On Tue, Jan 19, 2010 at 05:02:20PM -0500, Anne Archibald wrote:
> Be warned that in some installations (in particular some using ATLAS),
>  supplying econ=True can cause a segfault under certain conditions (I
> think only when the arrays are misaligned, e.g. coming from
> unpickling, and even then only with certain data); the bugfix for this
> may or may not be complete, and involves copying misaligned arrays.

Thanks for the warning. That's nasty. I'll test this around in my lab. I
don't think that arrays can be misaligned in my case, but I find it always 
hard to be certain.

Gaël


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