Search found 6 matches

by AveryAndrews
Wed Aug 26, 2020 8:27 am
Forum: New Donors start here
Topic: GPU alone 3x faster than with CPU?
Replies: 17
Views: 4079

Re: GPU alone 3x faster than with CPU?

I haven't taken notes of all of them (some real life disturbances), but I've got two 13421's, and the latest I've noted has been 13423 (8232,56,2). The base credits were all small (3190), leading to the hypthesis attached to my edited first msg. UPDATE: And just picked up a new one, 13423 (7299, 7, ...
by AveryAndrews
Wed Aug 19, 2020 8:17 am
Forum: New Donors start here
Topic: GPU alone 3x faster than with CPU?
Replies: 17
Views: 4079

Re: GPU alone 3x faster than with CPU?

I see; perhaps the GTX 750 is at the upper end of a slower equipment range, which would explain why it gets excessive points to a considerably greater extent than all the other cores I have run (assorted feeblsh-ish CPUs, Ryzen 7 3700X, Radeon RX-580). The Radeon sometimes gets excessive points, but...
by AveryAndrews
Wed Aug 19, 2020 1:49 am
Forum: New Donors start here
Topic: GPU alone 3x faster than with CPU?
Replies: 17
Views: 4079

Re: GPU alone 3x faster than with CPU?

So I think I have gotten some idea as to where the very hi PPD for the GTX 750 are coming from, which is jobs with an unusually high bonus factor for a reasonably prompt result, e.g base credit 3190, estimated credit 133887, job done in a bit under 2 hrs giving a 188000-ish estimated PPD. Whereas a ...
by AveryAndrews
Fri Aug 14, 2020 11:26 pm
Forum: New Donors start here
Topic: GPU alone 3x faster than with CPU?
Replies: 17
Views: 4079

Re: GPU alone 3x faster than with CPU?

Thanks for all the suggestions! After several jobs with 3x realistic estimates, the one it's doing now has a sensible one (c. 53000PPD). I've been looking at the logs, but they are a bit chaotic, so the next time I get a wild PPD estimate I'll manage them carefully. The high estimates can persist to...
by AveryAndrews
Fri Aug 14, 2020 7:40 am
Forum: New Donors start here
Topic: GPU alone 3x faster than with CPU?
Replies: 17
Views: 4079

Re: GPU alone 3x faster than with CPU?

It tends to float down somewhere in the 170000's. Sometimes I've seen wildly exaggerated PPD estimates even when the job has being going for some time, but this appears to be consistent over several trials. The performance of the GTX with 4 cores running has been 60k-ish. So I suspect some kind of r...
by AveryAndrews
Thu Aug 13, 2020 11:29 pm
Forum: New Donors start here
Topic: GPU alone 3x faster than with CPU?
Replies: 17
Views: 4079

GPU alone 3x faster than with CPU?

I am finding that my Phenom II X6 1100T + GTX 750, on an oldish mobo (GA-78LMT-USB3), under W10, gets an estimated 200000 PPD with only the GPU slot enabled, 80,000 with both, apparently regardless of the setting for number of CPU threads (client choose, 3, 4, 5 all seem to produce pretty much the s...