8000 Aligned allocator for numpy (Trac #568) · Issue #1166 · numpy/numpy · GitHub
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numpy-gitbot opened this issue Oct 19, 2012 · 7 comments
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Aligned allocator for numpy (Trac #568) #1166

numpy-gitbot opened this issue Oct 19, 2012 · 7 comments
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Original ticket http://projects.scipy.org/numpy/ticket/568 on 2007-08-11 by @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
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Attachment added by @cournape on 2007-08-11: aligned_v1.patch

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Milestone changed to 1.0.4 Release by @alberts on 2007-08-24

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@charris wrote on 2008-02-24

David, what is the status of this?

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@cournape wrote on 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

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Milestone changed to 1.1 by @cournape on 2008-02-25

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Milestone changed to Unscheduled by @cournape on 2008-08-13

@bashtage bashtage mentioned this issue Jan 15, 2016
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mattip commented Jan 13, 2019

Closing in favor of #5312 which has much more information

@mattip mattip closed this as completed Jan 13, 2019
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