Aligned allocator for numpy (migrated from Trac #568)

thouis / numpy-trac-migration

numpy Trac to github issues migration

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Aligned allocator for numpy (migrated from Trac #568) #2121

Open thouis opened 12 years ago

thouis commented 12 years ago

Original ticket http://projects.scipy.org/numpy/ticket/568 Reported 2007-08-11 by atmention:cournape, assigned to unknown.

Here is a first patch to have aligned allocator in numpy: this does not give yet a high interface to create arrays with a given alignment, only aligned allocators in the array interface.

The patch:

defines aligned allocators
Make PyDataMem_* macro to point to the aligned allocator with a default alignment (fixed to 16 bytes)
Define new macro PyDataAligned_* to align buffer with arbitrary alignment

thouis commented 12 years ago

Attachment in Trac by atmention:cournape, 2007-08-11: aligned_v1.patch

thouis commented 12 years ago

Comment in Trac by atmention:alberts, 2007-08-24

thouis commented 12 years ago

Comment in Trac by atmention:charris, 2008-02-24

David, what is the status of this?

thouis commented 12 years ago

Comment in Trac by atmention:cournape, 2008-02-25

That's something which needs more thinking and work (in particular, we need a small cpu capability detection if we want to use SSE and co in numpy, and aligned allocators are only useful when used with SSE and co in numpy), and anyway can't be integrated for 1.0.5

thouis commented 12 years ago

Comment in Trac by atmention:cournape, 2008-08-13

thouis commented 12 years ago

Comment in Trac by atmention:pv, 2009-03-08