You can sort floats by casting them to integers and accounting for the flipped representation of negatives. Comparison-based sorting of floats is over an order of magnitude slower on x86 systems I've tried relative to an old Altivec. On the Altivec runtime of comparison-based sorting of floats is comparable to that for sorting integers. On Wed, Jun 3, 2009 at 9:06 AM, Vladimir Prus <vladimir@codesourcery.com>wrote:
Steven Ross wrote:
float_sort uses a reasonably well-known trick that solves a major performance problem with x86 processors, but hasn't been widely accepted. I think it would be good to make this more readily available.
What trick?
- Volodya
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