[Numpy-discussion] Numpy Segmentation Fault
Fri Apr 9 08:53:08 CDT 2010
Yes I built it myself, some time back. I am using version 3.8.3
On Fri, Apr 9, 2010 at 7:14 PM, Charles R Harris
> On Fri, Apr 9, 2010 at 3:33 AM, Yogesh Tomar <firstname.lastname@example.org> wrote:
>> Hi David,
>> Many thanks for pointing this out, it turns out that it is indeed an ATLAS
>> issues and now I am able to run the test without any seg fault, after
>> re-installing numpy without ATLAS
>> A small question, if I use numpy without ATLAS will there be any functions
>> that will not be available?
>> Is there any major performance hit that I need to be aware of?
> The performance hit is likely to come with large arrays. For small arrays
> the call overhead will dominate and most of the data will reside in cache
> anyway. It is large arrays where the cache awareness of ATLAS makes a
> difference in performance and the difference can be a substantial. Where did
> you get ATLAS from? Did you build it yourself?
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