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Search: Posts Made By: Prime95
Forum: Software 2021-02-28, 18:53
Replies: 50
Views: 10,932
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: 42
Views: 1,430
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: 42
Views: 1,430
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: 42
Views: 1,430
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: 250
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: 9,992
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: 684
Views: 51,983
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: 250
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: 9,992
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: 8,438
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: 8,438
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...
Forum: GIMPS Board of Directors News 2021-02-23, 03:30
Replies: 12
Views: 9,992
Posted By Prime95
2021 BOD meeting minutes

GIMPS BoD Minutes 2021-02-22 by email
Attending: George Woltman (GW), Luke Welsh (LW), Ernst Mayer(EM)
. Meeting Called to Order
- GW: Approval of Minutes of BOD Meeting 2020-01-09
* GW MOVE,...
Forum: Software 2021-02-21, 23:19
Replies: 9
Views: 251
Posted By Prime95
Odd. This FFT length should be good to 105.9M...

Odd. This FFT length should be good to 105.9M (or 105.7M using AVX-512)
Forum: Software 2021-02-21, 23:13
Replies: 9
Views: 251
Posted By Prime95
Edit the worktodo.txt. After the assignment ID,...

Edit the worktodo.txt. After the assignment ID, add "FFT2=6M,".
Example: PRP=N/A,FFT2=6M,1,2,101077253,-1,76,2
Forum: Software 2021-02-18, 04:34
Replies: 7
Views: 250
Posted By Prime95
mprime should create save files if you kill it...

mprime should create save files if you kill it (not kill -9)
Forum: PrimeNet 2021-02-15, 21:03
Replies: 2,108
Views: 190,787
Posted By Prime95
Please try again. I increased the CPU...

Please try again.

I increased the CPU power required to get first-time tests. While I was at it I increased the amount of RAM a client must have to get P-1 assignments. In the process, I...
Forum: PrimeNet 2021-02-15, 10:19
Replies: 2,108
Views: 190,787
Posted By Prime95
Those 5 were all unaccounted for -- neither...

Those 5 were all unaccounted for -- neither assigned or available. They are now available.
Forum: PrimeNet 2021-02-15, 06:44
Replies: 2,108
Views: 190,787
Posted By Prime95
So I looked at the off-by-4 in the 100M - 101M...

So I looked at the off-by-4 in the 100M - 101M range.
The four exponents are awaiting a proof to be uploaded. Thus, they aren't DCed, nor are they available for assignment. They are in limbo. ...
Forum: GIMPS Board of Directors News 2021-02-13, 23:55
Replies: 12
Views: 9,992
Posted By Prime95
It has not. My fault. I did poll the board...

It has not. My fault.

I did poll the board members and there is no pressing business to discuss.
Forum: PrimeNet 2021-02-11, 17:48
Replies: 2,108
Views: 190,787
Posted By Prime95
I would not have the patience to wait 400 days...

I would not have the patience to wait 400 days for a result. I would unreserve it and ask for double-checks. You may do whatever makes you happy.

I'll check the assignment code to give...
Forum: PrimeNet 2021-02-10, 05:12
Replies: 1
Views: 270
Posted By Prime95
Fixed. This is a bug in prime95 30.3. If you...

Fixed. This is a bug in prime95 30.3. If you upgrade from v29 and there is a message in the spool file, the first 60 or so characters of the JSON message are lost. Fortunately, it is easy to...
Forum: Software 2021-02-08, 21:35
Replies: 108
Sticky: Prime95 v30.4
Views: 8,438
Posted By Prime95
It affects Fermats and Mersennes, P-1 and ECM. ...

It affects Fermats and Mersennes, P-1 and ECM.



Try build 9. If that fails, send me the save file, worktodo.txt, prime.txt, and local.txt.
Forum: Software 2021-02-07, 20:50
Replies: 108
Sticky: Prime95 v30.4
Views: 8,438
Posted By Prime95
Good find. Fixed in build 9, which is now...

Good find. Fixed in build 9, which is now available.
Forum: Information & Answers 2021-02-06, 19:09
Replies: 11
Views: 829
Posted By Prime95
Most factoring below 2^64 was done before...

Most factoring below 2^64 was done before primenet was keeping a history. The work was done, but a hardware error or software bug could mean a factor was missed.

However, P-1 probably would have...
Forum: Software 2021-02-05, 20:26
Replies: 526
Views: 62,653
Posted By Prime95
AVX FFTs only go to 51200K. This is the...

AVX FFTs only go to 51200K. This is the ungraceful (disgraceful?) error message you get trying to run an FFT above 50M.
Showing results 1 to 25 of 1000

 
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