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Search: Posts Made By: Prime95
Forum: Data 2022-09-29, 00:04
Replies: 3,636
Views: 365,403
Posted By Prime95
I do monitor this thread. I moved the exponent...

I do monitor this thread. I moved the exponent up in the queue a few days ago, which means no more than 4 days to complete once moved.
Forum: Marin's Mersenne-aries 2022-09-29, 00:02
Replies: 30
Views: 4,414
Posted By Prime95
BTW, thanks to all for getting us well ahead of...

BTW, thanks to all for getting us well ahead of the DC wavefront. A few expiring assignments below the wavefront will appear from time-to-time, but there should be no problem from now on keeping...
Forum: Information & Answers 2022-09-28, 17:43
Replies: 32
Views: 1,095
Posted By Prime95
Wonderful. Thank you to testcb00 for narrowing...

Wonderful. Thank you to testcb00 for narrowing the problem down to a specific FFT sizes and amount of RAM. Thanks to falk for noting that 29.8 worked just fine. From those two clues I was able to...
Forum: Software 2022-09-28, 17:31
Replies: 72
Views: 5,874
Posted By Prime95
Yes, ECMF is affected. I'd give 30.9 try if you...

Yes, ECMF is affected. I'd give 30.9 try if you can live with its shortcomings (mainly no save files in stage 2).
Forum: Information & Answers 2022-09-28, 01:05
Replies: 32
Views: 1,095
Posted By Prime95
Please try p95v308b17.win64.zip...

Please try p95v308b17.win64.zip (https://www.mersenne.org/ftp_root/gimps/p95v308b17.win64.zip)
Forum: Information & Answers 2022-09-27, 23:25
Replies: 32
Views: 1,095
Posted By Prime95
Good to know -- reduces the set of variables. ...

Good to know -- reduces the set of variables.



My first instinct would be to look at either code changed between 29.8 and 30.8. I don't think there were changes in locking/syncing threads...
Forum: Information & Answers 2022-09-27, 19:56
Replies: 32
Views: 1,095
Posted By Prime95
That remains to be seen :) Different...

That remains to be seen :)



Different numerical differences are not helpful for debugging. These errors simply mean "something went wrong in the calculations". A stable machine running the...
Forum: Information & Answers 2022-09-27, 03:34
Replies: 32
Views: 1,095
Posted By Prime95
Issues are taken seriously. Right now we are in...

Issues are taken seriously. Right now we are in a data gathering phase -- looking for patterns that indicate there really is a prime95 bug.

Your problem description and testcb00's are far from...
Forum: Software 2022-09-25, 18:27
Replies: 734
Views: 67,875
Posted By Prime95
The 90% limit is for the GUI. Editing local.txt...

The 90% limit is for the GUI. Editing local.txt manually can work around the 90% limit.



Prime95 has no understanding of NUMA. Your only up is to run two instances of prime95. Use a Windows...
Forum: Software 2022-09-25, 17:58
Replies: 734
Views: 67,875
Posted By Prime95
Some debugging reveals prime95 is looking for a...

Some debugging reveals prime95 is looking for a benchmark with all 16 cores used. Thus, run a throughput benchmark for 16 cores, 1 worker, all FFT implementations, 6M to 7M fft sizes. Let me know...
Forum: Software 2022-09-25, 15:46
Replies: 72
Views: 5,874
Posted By Prime95
Adding PolyVerbose=1 to prime.txt will fix this...

Adding PolyVerbose=1 to prime.txt will fix this (and get even more useless timings :)
Forum: GMP-ECM 2022-09-25, 02:09
Replies: 25
Views: 1,460
Posted By Prime95
Download 30.9 build 2 for a fix.

Download 30.9 build 2 for a fix.
Forum: Software 2022-09-25, 02:07
Replies: 72
Views: 5,874
Posted By Prime95
30.9 build 2 If you aren't doing ECM, do not...

30.9 build 2

If you aren't doing ECM, do not download! PRE-BETA software!

What's new over build 1? Should be a little more stable and a little faster. Fixed nasty bug that sometimes caused...
Forum: GMP-ECM 2022-09-24, 20:24
Replies: 25
Views: 1,460
Posted By Prime95
Finally, nailed the bugger. Starting in...

Finally, nailed the bugger.

Starting in 30.7, the curve starting point is incorrectly computed on every curve after the first curve. This is due to "leftover state" from stage 2.
The problem is...
Forum: Software 2022-09-24, 15:15
Replies: 2
Views: 115
Posted By Prime95
Include ../gwnum/polymult.a in LIBS. Edit: ...

Include ../gwnum/polymult.a in LIBS.

Edit: Nevermind, I see you did that. All the undefined references are from the polymult.a library
Forum: GPU Computing 2022-09-22, 20:39
Replies: 10
Views: 602
Posted By Prime95
I've been watching Radeon VII prices on eBay...

I've been watching Radeon VII prices on eBay since the Etherum PoS change. I've seen Buy-it-now prices around $400. One miner was offering 4 cards for $1000 today.

I should have my head examined...
Forum: GMP-ECM 2022-09-22, 20:33
Replies: 25
Views: 1,460
Posted By Prime95
I've created a special version that always dumps...

I've created a special version that always dumps the stage 1 result. I'm searching again for new factors in hopes the problem comes up again. At least then I'll be able to tell if the problem is...
Forum: GMP-ECM 2022-09-22, 19:53
Replies: 25
Views: 1,460
Posted By Prime95
Grrrr... false lead. A change in 30.6 caused an...

Grrrr... false lead. A change in 30.6 caused an extra power-of-two to be include in stage 1. That's pretty harmless.
Forum: GMP-ECM 2022-09-22, 17:41
Replies: 25
Views: 1,460
Posted By Prime95
In my case, the factor was found on the 4th...

In my case, the factor was found on the 4th curve. The screen output shows the sigma value at start of the ECM run and when the factor was found. The variable holding the sigma value was not...
Forum: GMP-ECM 2022-09-22, 06:18
Replies: 25
Views: 1,460
Posted By Prime95
Issue began in 30.6 -- affects stage 1 result. I...

Issue began in 30.6 -- affects stage 1 result. I have a painful way to find out which code change caused the problem.
Forum: GMP-ECM 2022-09-21, 19:47
Replies: 25
Views: 1,460
Posted By Prime95
The bad sigma problem just happened to me, so it...

The bad sigma problem just happened to me, so it was not a one-time memory corruption -- it is a prime95 bug.

The most concerning thing is that the factor is not found by prime95 when rerun with...
Forum: Marin's Mersenne-aries 2022-09-21, 00:27
Replies: 30
Views: 4,414
Posted By Prime95
You can use the manual results web page. ...

You can use the manual results web page.

Results should be sent automatically and immediately. Have you turned on the Manual Communication only option?
Forum: GMP-ECM 2022-09-18, 18:23
Replies: 25
Views: 1,460
Posted By Prime95
I could not reproduce the computation. I'll ask...

I could not reproduce the computation. I'll ask user xxx to try.

Corruption of the sigma value is possible -- though it seems unlikely. Corruptions usually result in crashes or incorrect results...
Forum: GMP-ECM 2022-09-18, 01:54
Replies: 25
Views: 1,460
Posted By Prime95
ECM group order mystery

Can anyone explain this:

Prime95 reports this:

ECM found a factor in curve #288, stage #2
Sigma=8055078829352661, B1=1000000, B2=2842011315.
UID: xxx, M257189 has a factor: ...
Forum: Mlucas 2022-09-15, 04:17
Replies: 9
Views: 361
Posted By Prime95
No need to apologize -- always glad to squash a...

No need to apologize -- always glad to squash a bug.
Showing results 1 to 25 of 1000

 
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