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Old 2010-09-26, 18:45   #2
mdettweiler
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Aug 2007
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Here's a summary of the empirically determined optimal -m values for various GPUs on this sieve:
Code:
Model              Optimal -m value
-----------------------------------
nVidia GTX 460      2048
If you have a GPU that's not in this list, please experiment with various values (2048 is probably a good starting point) and let us know what works best! Note that all -m values must be multiples of 128.
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