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Old 2018-05-27, 20:54   #8
kriesel
 
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Mar 2017
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Default Four primality test programs' performance charted together

clLucas, CUDALucas, gpulucas, and gpuOwL compared.
Note the speed disparity of the GTX480 CUDA gpu, (at 244W), at 3.6-3.7 times the hardware performance rating of the OpenCL low power card (50W), when interpreting these values. Normalizing to equal speed hardware, gpuOwL seems to perform fastest by a comfortable margin.

A fairer hardware comparison would put clLucas and gpuOwl on an RX480. But I had none available at the time. See also http://www.mersenneforum.org/showpos...&postcount=386 showing the RX480 3.4-3.6 times faster than the RX550 on the same exponents.

Note also, that gpuowl v1.9 is what was measured and compared, and that many performance improvements in gpuowl have been implemented since.


Top of reference tree: https://www.mersenneforum.org/showpo...22&postcount=1
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File Type: pdf primality tester performance comparison.pdf (15.1 KB, 383 views)

Last fiddled with by kriesel on 2020-08-27 at 17:30
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