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Old 2021-06-25, 17:42   #11
ATH
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Dec 2003
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Quote:
Originally Posted by MJansen View Post
The latter approach was used in the thread I mentioned (https://mersenneforum.org/showthread.php?t=12827) and there were regular remarks about the CPU being not fast enough so the GPU was waiting. So I guess your approach with both pre sieving and PRP test on the GPU circumvents that.
mfaktc can also sieve on the GPU: SieveOnGPU=1 in mfaktc.ini. It think almost everyone uses that now, and I think it was only in the very beginning of mfaktc that people were using CPU for sieving, but I could be wrong about that.
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