Prime95 v30.3 - Page 38

kriesel · 2020-10-05, 16:21

Quote:

Originally Posted by Prime95

75% due to programmer error (probably).

Once we feel we have all the bugs hammered out, you really want to know the error rate where a proof can not be generated (residue file corrupted, FFT error during proof generation).

Or where a proof can not be confirmed, due to MD5 mismatch or whatever. It's natural to have growing pains, and the early result of better than 100:1 lower error rate is already stellar. There may be ways to allow fallback to lower power proof in some bad residue file cases, rather than pitch the whole set and start over. A gpuowl example: https://www.mersenneforum.org/showpo...1&postcount=27 (Not sure if prime95 already has this covered)

storm5510 · 2020-10-05, 17:16

Quote:

Originally Posted by James Heinrich

If the user does a LL-DC and the it doesn't match the first-LL, we don't know which is wrong necessitating an (equally-long) triple-check. If the exponent is cleared by PRP+cert then we can either assume the original LL was correct (which may or may not be the case, but ultimately doesn't matter if we know it's not-prime), or we'll immediately know the PRP was faulty if it fails the cert (has this happened?) What's the current PRP+cert failture rate based on a month or so of data?

I put Ubuntu 20.04 LTS on my snail Core2 desktop only to run mprime doing DC work. About 18 days per test. I am wondering if it might be better to run these as PRP? I have a decent idea as to how to change the worktodo lines. Doing so may void my AID numbers if I leave ManualComm=0 I have it set to DaysOfWork=0 to prevent any auto reservations. Contacting the server would need to remain automatic so the certifications would be uploaded. I am not sure how all this would work.

paulunderwood · 2020-10-05, 17:30

You could cancel your current Ubuntu LL assignments through mersenne.org and request fresh PRP work.

James Heinrich · 2020-10-05, 17:44

Quote:

Originally Posted by paulunderwood

You could cancel your current Ubuntu LL assignments through mersenne.org and request fresh PRP work.

That would be the best option.

storm5510 · 2020-10-05, 23:15

Off-topic. Consider this machine as going to the dumpster, minus the HD. I found another workstation on eBay similar to the one I have now. 2.8GHz Xeon quad-core and 8 GB of RAM. No HD, no problem. I can put my now boxed GTX 1650 in this and go. Holding the two LL jobs I have for a week should not hurt anything.

kriesel · 2020-10-06, 00:34

Quote:

Originally Posted by storm5510

Off-topic. Consider this machine as going to the ~~dumpster~~

Best Buy recycling, or local hackerspace parts bin.

Tad Mar · 2020-10-06, 19:09

Will DCs be replaced by the PRP CERT anytime soon or will it just replace the first time LL

James Heinrich · 2020-10-06, 19:58

Quote:

Originally Posted by Tad Mar

Will DCs be replaced by the PRP CERT anytime soon or will it just replace the first time LL

Yes (it has been discussed (again) over the last few pages of this thread if you want to skim over it). Old clients that haven't been upgraded yet will continue to do DC-LL since they don't know anything else, new clients can (slightly) more efficiently clear exponents that need DC with a PRP+cert test.

richs · 2020-10-06, 20:45

Quote:

Originally Posted by James Heinrich

Yes (it has been discussed (again) over the last few pages of this thread if you want to skim over it). Old clients that haven't been upgraded yet will continue to do DC-LL since they don't know anything else, new clients can (slightly) more efficiently clear exponents that need DC with a PRP+cert test.

Is DC with a PRP+cert one of the options under Worker Windows, or does this have to be handled manually?

James Heinrich · 2020-10-06, 21:19

Quote:

Originally Posted by richs

Is DC with a PRP+cert one of the options under Worker Windows, or does this have to be handled manually?

The worker option (in v30.3) is labelled "Double-check prime tests" without the method. Presumably (but I don't know for certain) the server would hand such work out based on the client requesting (LL to old clients, PRP to new clients).

Prime95 · 2020-10-07, 00:19

Quote:

Originally Posted by James Heinrich

The worker option (in v30.3) is labelled "Double-check prime tests" without the method. Presumably (but I don't know for certain) the server would hand such work out based on the client requesting (LL to old clients, PRP to new clients).

I think the server is handing out LL to both. Correct me if I'm remembering incorrectly.

2020-10-05, 23:15	#412
storm5510 Random Account Aug 2009 11110100100₂ Posts	Off-topic. Consider this machine as going to the dumpster, minus the HD. I found another workstation on eBay similar to the one I have now. 2.8GHz Xeon quad-core and 8 GB of RAM. No HD, no problem. I can put my now boxed GTX 1650 in this and go. Holding the two LL jobs I have for a week should not hurt anything. Last fiddled with by storm5510 on 2020-10-05 at 23:37

2020-10-05, 17:30	#410
paulunderwood Sep 2002 Database er0rr 2×3²×11×19 Posts	You could cancel your current Ubuntu LL assignments through mersenne.org and request fresh PRP work.

2020-10-06, 19:09	#414
Tad Mar Oct 2020 2·3 Posts	Will DCs be replaced by the PRP CERT anytime soon or will it just replace the first time LL