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shunwang / numexpr

Automatically exported from code.google.com/p/numexpr
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forward scipy ticket 400:Patch for accelerating operations in numexpr when unaligned matrices are present #4

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 

 By F. Altet:

I don't actually know why, but my benchmarks show that doing a copy in python 
space of an 
unaligned array is between a 30% and 70% faster (depending on the CPU) than 
doing this in C space 
(using PyArray_SimpleNewFromDescr).

I'm adding the patch just in case you want to try it out and/or eventually 
apply it.

Original issue reported on code.google.com by courn...@gmail.com on 23 Jun 2008 at 5:29

Attachments:

GoogleCodeExporter commented 9 years ago 
This was already addressed in Numexpr 1.0.  Closing this ticket.

Original comment by fal...@gmail.com on 14 Jan 2009 at 6:48