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Search: Posts Made By: Prime95
Forum: Data 2021-11-26, 06:16
Replies: 986
Views: 121,506
Posted By Prime95
Thanks everyone! You've given me several bugs to...

Thanks everyone! You've given me several bugs to hunt down. Please stop using 30.8 for now.

Edit: 30.8 removed from the server.
Forum: Data 2021-11-25, 23:33
Replies: 986
Views: 121,506
Posted By Prime95
This looks fine. Yes, time estimates will be...

This looks fine. Yes, time estimates will be wildly off the mark. Tidying up the incorrect 0.0% stage 2 messages and these time estimates have not been worked on -- part of why I call this an...
Forum: Lone Mersenne Hunters 2021-11-25, 23:14
Replies: 18
Views: 13,218
Posted By Prime95
Stop! Investigate v30.8. Wait for a future...

Stop! Investigate v30.8. Wait for a future version before trying P+1.
Forum: Data 2021-11-25, 22:31
Replies: 986
Views: 121,506
Posted By Prime95
I found a bug in P-1 stage 2 init that may or may...

I found a bug in P-1 stage 2 init that may or may not have affected my previous runs. I'm rerunning all my v30.8 stage 2 work. When using 30.8, I recommend saving your completed P-1 save files...
Forum: Data 2021-11-25, 15:37
Replies: 986
Views: 121,506
Posted By Prime95
The new stage 2 selects a D value (330330 in this...

The new stage 2 selects a D value (330330 in this case) and then does batches of D values with a single polynomial multiplication. The new code completes the full batch that is larger than the...
Forum: Data 2021-11-25, 06:31
Replies: 986
Views: 121,506
Posted By Prime95
Yes. That was just my complete-shot-in-the-dark...

Yes. That was just my complete-shot-in-the-dark guess as to ECM's equivalent TF.

I upped B1 to 250M, fixed the 999x cap. B2 = 4.45 trillion in an hour and a half.


[Work thread Nov 24 23:42]...
Forum: Data 2021-11-25, 04:16
Replies: 986
Views: 121,506
Posted By Prime95
For giggles, I tried P-1 on M80071, B1=200M It...

For giggles, I tried P-1 on M80071, B1=200M It appears that the code that caps B2 at 999*B1 needs to change.
B2 = 76 billion in under 2 minutes!


[Work thread Nov 24 22:56] M80071 stage 1...
Forum: Data 2021-11-24, 15:01
Replies: 986
Views: 121,506
Posted By Prime95
1) The algorithm requires "spare bits" in each...

1) The algorithm requires "spare bits" in each FFT word. Should you decide to run the pre-beta, turn on round-off checking to make sure I've not made a mistake in estimating the correct number of...
Forum: Data 2021-11-24, 12:21
Replies: 986
Views: 121,506
Posted By Prime95
On my quad core, 8GB machine: version 30.7: ...

On my quad core, 8GB machine:

version 30.7:

[Work thread Nov 23 11:19] P-1 on M26899799 with B1=1000000, B2=30000000
[Work thread Nov 23 11:19] Using FMA3 FFT length 1440K, Pass1=320,...
Forum: Data 2021-11-23, 06:08
Replies: 986
Views: 121,506
Posted By Prime95
Can you give me two similar exponents to P-1...

Can you give me two similar exponents to P-1 please. I'll run one on 30.7 and play with the other in 30.8.
Forum: Data 2021-11-23, 02:51
Replies: 986
Views: 121,506
Posted By Prime95
A recommendation for all users. Concentrate your...

A recommendation for all users. Concentrate your P-1 efforts on larger exponents. 30.8 has some exciting P-1 developments coming. The smaller the exponent, the more P-1 will benefit from the new...
Forum: Software 2021-11-19, 15:51
Replies: 22
Views: 604
Posted By Prime95
Keep the save file. Version 30.8 may be able to...

Keep the save file. Version 30.8 may be able to complete stage 2.
Forum: Software 2021-11-18, 23:37
Replies: 22
Views: 604
Posted By Prime95
Prime95 is the wrong tool for the job. Use...

Prime95 is the wrong tool for the job. Use GMP-ECM.
Forum: Software 2021-11-18, 20:16
Replies: 138
Sticky: Prime95 30.7
Views: 11,298
Posted By Prime95
Before embarking on huge P-1 bounds, consider...

Before embarking on huge P-1 bounds, consider using GMP-ECM or waiting for version 30.8.
Forum: Software 2021-11-15, 06:13
Replies: 138
Sticky: Prime95 30.7
Views: 11,298
Posted By Prime95
Build 9 available.

Build 9 available.
Forum: Software 2021-11-13, 23:49
Replies: 138
Sticky: Prime95 30.7
Views: 11,298
Posted By Prime95
Dobri's TF problem is already fixed. I'll upload...

Dobri's TF problem is already fixed. I'll upload a new build in a few days.
Forum: Software 2021-11-13, 05:13
Replies: 138
Sticky: Prime95 30.7
Views: 11,298
Posted By Prime95
I could not reproduce this. I get an "Illegal...

I could not reproduce this. I get an "Illegal line in worktodo.txt message".
Forum: Software 2021-11-12, 04:20
Replies: 138
Sticky: Prime95 30.7
Views: 11,298
Posted By Prime95
A little bit. Stage 2 per iteration time seems...

A little bit. Stage 2 per iteration time seems to be 30-70% slower. I could make it a prime.txt option, but I doubt many would bother with it. I'll just pick an average value and be done with it.
Forum: Software 2021-11-06, 01:36
Replies: 138
Sticky: Prime95 30.7
Views: 11,298
Posted By Prime95
build 8 now available

build 8 now available
Forum: PrimeNet 2021-11-05, 23:35
Replies: 35
Views: 967
Posted By Prime95
P-1 in the latest versions (30.4+, but use 30.7...

P-1 in the latest versions (30.4+, but use 30.7 instead) can auto-select the best B2 value given B1,how-much-TF-has-been-done,Mem-available.

Try Pminus1=N/A,1,2,29001487,-1,5000000,0,75

All...
Forum: Software 2021-11-05, 21:06
Replies: 15
Views: 617
Posted By Prime95
I've looked at the files and think either 1)...

I've looked at the files and think either

1) A corrupt save file caused the iteration counter to go off by one (switched to non-Gerbicz error checking)
2) The PRP test was continued from an...
Forum: PrimeNet 2021-11-05, 06:13
Replies: 35
Views: 967
Posted By Prime95
I cannot disagree. I only offer this as an...

I cannot disagree. I only offer this as an explanation as to why I've not been in any hurry to adjust the 2 downward.



It is not in the works. There are two reasons:
1) Prime95 would...
Forum: PrimeNet 2021-11-04, 18:19
Replies: 35
Views: 967
Posted By Prime95
I agree that setting tests_saved to 1 would be...

I agree that setting tests_saved to 1 would be optimal for GIMPS throughput.

However, is a factor worth more than a PRP proof? That's a purely subjective question. Mihai and I agree that a...
Forum: Software 2021-11-03, 03:32
Replies: 138
Sticky: Prime95 30.7
Views: 11,298
Posted By Prime95
I suspect just one will work

I suspect just one will work
Forum: Software 2021-10-31, 04:57
Replies: 15
Views: 617
Posted By Prime95
The official version is fine for running PRP...

The official version is fine for running PRP tests.
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