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Old 2019-10-29, 02:04   #9
VBCurtis's Avatar
Feb 2005
Riverside, CA

33×163 Posts

Originally Posted by PhilF View Post

So where to find some suitable candidates for GPU based ECM curves?

I would like to compare the relative speed of a GPU-enabled GMP-ECM stage 1 with a CPU-based Prime95 stage 1.
GPU-ECM is limited to 1019 bits. Prime95 is limited to numbers of a certain form. There's not a ton of overlap between them, but I happen to be working on factorizations of k*2^n-1 (Riesel form).
My next two SNFS jobs are:
I believe these can be run by both programs. They've each had about 2t50 done already, and need something close to t55; so curves at 11e7 or bigger are helpful to my efforts.
If you're curious, you can find project status at
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