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-   GPU to 72 (https://www.mersenneforum.org/forumdisplay.php?f=95)
-   -   GPU to 72 status... (https://www.mersenneforum.org/showthread.php?t=16263)

chalsall 2019-12-22 16:31

[QUOTE=Uncwilly;533377]He can fix the problem.[/QUOTE]

Oh shoot! Sorry guys. Should now be fixed; now going to 75.

James Heinrich 2019-12-22 17:02

:thumbs-up:

ixfd64 2019-12-23 18:52

I'm getting 75-bit assignments even though I specified 74 bits using the "will factor to" option.

chalsall 2019-12-23 19:10

[QUOTE=ixfd64;533441]I'm getting 75-bit assignments even though I specified 74 bits using the "will factor to" option.[/QUOTE]

Yes.

That's because there's no longer anything available from GPU72 to take to 74.

If you want such work, please get it directly from Primenet.

ixfd64 2019-12-23 19:15

I see. It might be a good idea to make a note of it on the assignment request page.

storm5510 2019-12-30 13:44

I believe we are being jumped over. Four days ago, I received a first-time LL test on M102515453. It had been factored to 2^74. I checked the Work Distribution Map on [I]mersenne.org[/I]. There are over 3,000 LL's assigned above 100,000,000. Only 11 P-1's.

There are over 2,800 out for LL's from 95,000,000 to 99,999,999. I really do not understand why this is going on. I always thought a P-1 was an absolute must before running any first time test.

chalsall 2019-12-30 18:14

[QUOTE=storm5510;533753]I believe we are being jumped over.[/QUOTE]

Yup, I'm afraid so.

Currently, Cat 4 is up in the 102M range. In a week or so, Cat 3 will enter 100M. We're still looking OK for Cats 0 through to 2.

But if anyone has any GPU compute available (perhaps Santa was kind???) we could *really* use some more TF'ing firepower.

petrw1 2019-12-30 22:15

[QUOTE=storm5510;533753]I always thought a P-1 was an absolute must before running any first time test.[/QUOTE]

Is it still the case that if you get assigned a PRP or LL for an exponent that does NOT have P-1 that you will be assigned the P-1 first?

chalsall 2019-12-30 22:26

[QUOTE=petrw1;533791]Is it still the case that if you get assigned a PRP or LL for an exponent that does NOT have P-1 that you will be assigned the P-1 first?[/QUOTE]

My understanding is this a function within Prime95/mprime itself. If a P1 run wasn't done, it will be done first. Usually not terribly well, unfortunately, because of low RAM settings...

storm5510 2019-12-31 00:29

[QUOTE=chalsall;533798]My understanding is this a function within Prime95/mprime itself. If a P1 run wasn't done, it will be done first. Usually not terribly well, unfortunately, because of low RAM settings...[/QUOTE]

I run one of these occasionally as a hardware test. When the P-1 started, I thought something had gone wrong, so I stopped, and unreserved it. It is a DC that I normally run. Alzheimer's Lite kicked in, perhaps.

kladner 2019-12-31 07:45

[QUOTE=chalsall;533771]Yup, I'm afraid so.

Currently, Cat 4 is up in the 102M range. In a week or so, Cat 3 will enter 100M. We're still looking OK for Cats 0 through to 2.

But if anyone has any GPU compute available (perhaps Santa was kind???) we could *really* use some more TF'ing firepower.[/QUOTE]
What I've got is currently LLTF 2x mfaktc on a GTX 1060 =~600-620 GHz-d/d. Lamentations for the loss of 115 GHz-d/d when the GTX 460 lost a fan. I wish I could drop something newer and badder in there. I have plenty of reserve in the PSU, but utterly destroyed discretionary spending, thanks to a couple of car parts going missing recently. :max: :mad: :sad:


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