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Search: Posts Made By: Prime95
Forum: PrimeNet 2021-03-09, 09:55
Replies: 10
Views: 206
Posted By Prime95
See...

See https://www.mersenneforum.org/showthread.php?t=26526

Stick with 30.4 but keep an eye on any boxes nearing PRP completion. No wrong answers are produced, just repeated roundoff errors. This...
Forum: PrimeNet 2021-03-09, 02:50
Replies: 10
Views: 206
Posted By Prime95
30.4b9 has an issue for PRP testing (but not...

30.4b9 has an issue for PRP testing (but not until you reach the last 50 iterations).
30.5 should be ready soon.
Forum: PrimeNet 2021-03-08, 22:39
Replies: 10
Views: 206
Posted By Prime95
If you got the assignment from the server and did...

If you got the assignment from the server and did not edit the worktodo.txt, then prime95 should know that the exponent has not had P-1 done. Prime95 will then use your current memory settings to...
Forum: Software 2021-03-08, 16:00
Replies: 4
Views: 118
Posted By Prime95
Credit transferred to Raydex

Credit transferred to Raydex
Forum: Software 2021-03-08, 01:09
Replies: 20
Views: 783
Posted By Prime95
minus Fixing RuntimeError's bug is actual trivial as...

Fixing RuntimeError's bug is actual trivial as you surmised. So, here's why the fix is extensive!

In a PRP test, when a Gerbicz block completes and there are less than 49 iterations remaining,...
Forum: Software 2021-03-07, 20:42
Replies: 20
Views: 783
Posted By Prime95
The fix is rather extensive and will be addressed...

The fix is rather extensive and will be addressed in 30.5. I've got a 30.5 gwnum library released for some preliminary testing. If all goes well, expect prime95 version 30.5 in a few days.
Forum: Cloud Computing 2021-03-07, 18:00
Replies: 49
Views: 1,891
Posted By Prime95
It ought to work.

It ought to work.
Forum: PrimeNet 2021-03-06, 18:43
Replies: 3
Views: 90
Posted By Prime95
Weird. Let us know if the problem disappears in...

Weird. Let us know if the problem disappears in the next daily update (or do a Manual Communication). If it continues, we'll need to look at the prime.log file, possibly with verbose output.
Forum: Hardware 2021-03-06, 06:08
Replies: 15
Views: 847
Posted By Prime95
Consult this list for a more trustworthy ranking...

Consult this list for a more trustworthy ranking of GPUs: https://drive.google.com/file/d/1Timk3v5lhipf21w2FogXn8vl57X_RWO0/view
Forum: Software 2021-03-05, 00:09
Replies: 20
Views: 783
Posted By Prime95
Nope, my bad! The problem is specific to...

Nope, my bad!

The problem is specific to 30.4. I will fix it in build 10.

The TL;DR; details:
The problem occurs in the last 50 iterations when prime95 switches from Gerbicz error checking...
Forum: Software 2021-03-04, 23:37
Replies: 20
Views: 783
Posted By Prime95
This is NOT RECOMMENDED for the general public. ...

This is NOT RECOMMENDED for the general public. You can work probably around your problem by setting "MaxRoundoffError=0.499" in prime.txt.
Forum: Software 2021-03-04, 23:29
Replies: 20
Views: 783
Posted By Prime95
I'm puzzled on the selection of 5600K FFT. Do...

I'm puzzled on the selection of 5600K FFT. Do you have an old gwnum.txt lying around that is causing 5600K to be selected? Not that this matters, I'm just curious. A 5600K FFT should run just fine.
Forum: Software 2021-03-04, 01:07
Replies: 20
Views: 783
Posted By Prime95
I'm somewhat stumped. First off, you must be...

I'm somewhat stumped.

First off, you must be running a 32-bit OS as the 5600K FFT is not chosen by 64-bit prime95. Perhaps this is why you are the only one reporting a problem.

Second, I...
Forum: Information & Answers 2021-03-01, 21:19
Replies: 3
Views: 242
Posted By Prime95
You'll need to do some throughput benchmarks once...

You'll need to do some throughput benchmarks once you upgrade. I suspect maximum throughput will come with more than 2 workers.

I don't see any reason why one of your workers cannot continue...
Forum: Software 2021-02-28, 18:53
Replies: 50
Views: 11,368
Posted By Prime95
Prime95 tests 52955*2^198566-1 with a maximum...

Prime95 tests 52955*2^198566-1 with a maximum roundoff error of 0.344 using a 15K AVX FFT. That's high, but no where near dangerous. A bit strange that LLR is getting a much larger roundoff error....
Forum: Cloud Computing 2021-02-27, 00:29
Replies: 49
Views: 1,891
Posted By Prime95
Try mersenne.org's manual assignment page

Try mersenne.org's manual assignment page
Forum: Cloud Computing 2021-02-25, 20:25
Replies: 49
Views: 1,891
Posted By Prime95
Yes, get an LL-DC assignment and then PRP it. ...

Yes, get an LL-DC assignment and then PRP it. Upload your PRP result and proof file as you normally would (either by prime95 or gpuowl's python script).
Forum: Cloud Computing 2021-02-25, 16:59
Replies: 49
Views: 1,891
Posted By Prime95
There are other sources of hardware error than...

There are other sources of hardware error than memory. Thus, Gerbicz error checking is still beneficial.



The PrimeNet server will happily accept a PRP test with proof for LL-DC work. So, you...
Forum: Information & Answers 2021-02-24, 21:05
Replies: 8
Views: 302
Posted By Prime95
I've not kept up with the best CPU/GPU currently...

I've not kept up with the best CPU/GPU currently available. You'll need to dig around the forum for best choice in your price range.

I believe AMD Ryzen with a big L3 cache is the current best...
Forum: GIMPS Board of Directors News 2021-02-24, 16:49
Replies: 12
Views: 10,690
Posted By Prime95
Thanks for the correction. Filed July 2020, next...

Thanks for the correction. Filed July 2020, next one due July 2022.

California requires a filing a simple Statement of Information that lists a tax-exempt corporation's legal address and officers...
Forum: Soap Box 2021-02-24, 00:33
Replies: 685
Views: 53,914
Posted By Prime95
Understood, but the solution is not reducing info...

Understood, but the solution is not reducing info posted on the U.S. (which one can ignore if they find it uninteresting). I'd love to read stories on interesting machinations of other countries --...
Forum: Information & Answers 2021-02-24, 00:27
Replies: 8
Views: 302
Posted By Prime95
Welcome back! Gpuowl does not do LL -- only...

Welcome back!

Gpuowl does not do LL -- only PRP with proofs. There are python scripts (no GUI) to automate the fetching of work and reporting results and uploading proofs. You will get WR...
Forum: GIMPS Board of Directors News 2021-02-23, 20:59
Replies: 12
Views: 10,690
Posted By Prime95
I'll have Aaron look at your suggested ISP. This...

I'll have Aaron look at your suggested ISP. This really is not my area of expertise.
Forum: Software 2021-02-23, 17:50
Replies: 108
Sticky: Prime95 v30.4
Views: 9,208
Posted By Prime95
Prime95 does not do that.

Prime95 does not do that.
Forum: Software 2021-02-23, 06:07
Replies: 108
Sticky: Prime95 v30.4
Views: 9,208
Posted By Prime95
Maybe not. I believe when the first P-1 finished...

Maybe not. I believe when the first P-1 finished it created a save file indicating that P-1 had been run to B1=1.2M, B2=67.2M. When the second P-1 line was processed prime95 took B2 from 67.2M to...
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