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Old 2019-11-14, 21:37   #483
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fivemack's Avatar
Feb 2006
Cambridge, England

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Originally Posted by EdH View Post
In playing with my Colab instance of GMP-ECM with GPU enabled (K80 GPU), I have made some observations:

The K80 shows 832 cores.
That rather surprises me, since a K80 card is specified as having 4992 cores, so you're getting 1/6 of it (and, as you say the timings double when you go to >416 curves, 1/12 of it).

(though my 1080Ti is specified as 3584 cores and runs 1792 curves at a time, so there's a small constant factor there in any case)
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