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Search: Posts Made By: Prime95
Forum: Software 2022-07-03, 00:25
Replies: 9
Views: 355
Posted By Prime95
30.9 build 1 If you aren't doing ECM, do not...

30.9 build 1

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

Save files during ECM stage 2 are broken (probably a crash)
Stage 2 time estimates and optimal B2 bounds could be off...
Forum: Software 2022-07-01, 02:42
Replies: 9
Views: 355
Posted By Prime95
P+1 is not improved. I'll see if I can...

P+1 is not improved.

I'll see if I can make a build sometime soon.
Forum: Information & Answers 2022-06-30, 03:28
Replies: 26
Views: 795
Posted By Prime95
and what happens now if you run mprime with 14...

and what happens now if you run mprime with 14 workers?
Forum: Software 2022-06-29, 21:09
Replies: 9
Views: 355
Posted By Prime95
ECM users - version 30.9?

I've been very slow at writing new code lately -- summertime I guess.

Is there interest in a pre-beta version of 30.9 that uses a GMP-ECM-like stage 2? It's been working and pretty stagnant for...
Forum: Information & Answers 2022-06-29, 20:51
Replies: 26
Views: 795
Posted By Prime95
Keep an eye out for version 30.9 (won't address...

Keep an eye out for version 30.9 (won't address your problem, but will run ECM better)
Forum: Information & Answers 2022-06-29, 20:47
Replies: 26
Views: 795
Posted By Prime95
A bug is certainly possible. Version 30.8 will...

A bug is certainly possible. Version 30.8 will not behave any differently.

For the throughput benchmark data to be used in FFT selection, the throughput benchmark inputs (#workers,#cores) must...
Forum: Software 2022-06-29, 16:58
Replies: 4
Views: 114
Posted By Prime95
Prime95 does not handle changing the directory...

Prime95 does not handle changing the directory containing the residues files midway through a test very well. In all likelihood the 4 PRP tests will now complete without generating a proof. Oh...
Forum: Software 2022-06-28, 21:34
Replies: 76
Views: 5,898
Posted By Prime95
The current ECM stage 2 code cannot put tons of...

The current ECM stage 2 code cannot put tons of memory to good use.

Strongly suggest using GMP-ECM for stage 2 on exponents below 50,000.
Forum: Tales From the Crypt(o) 2022-06-28, 05:06
Replies: 9
Views: 314
Posted By Prime95
They are on my only-option list. Hey, they...

They are on my only-option list.

Hey, they rebranded as Spectrum so all that ugliness must be behind them, right?
Forum: Tales From the Crypt(o) 2022-06-28, 04:24
Replies: 9
Views: 314
Posted By Prime95
AmazonPrime detects the VPN and will not work...

AmazonPrime detects the VPN and will not work properly, I wonder what other services restrict VPN access?
This eliminates the idea of a central router encrypting all VPN traffic.
Forum: GPU Computing 2022-06-28, 03:05
Replies: 375
Views: 98,075
Posted By Prime95
For those with an interest in Radeon VII compute,...

For those with an interest in Radeon VII compute, eBay prices have dropped below $700 thanks to the crypto crash.
Forum: Tales From the Crypt(o) 2022-06-28, 02:55
Replies: 9
Views: 314
Posted By Prime95
Proton vs. my ISP paranoia

Feedback please. TLDR at bottom :)

My wife and I frequently complain of slow internet. She might be on facebook or watching videos, I'm randomly surfing. Charter Spectrum is our Internet...
Forum: Information & Answers 2022-06-16, 20:45
Replies: 2
Views: 171
Posted By Prime95
Did you run a benchmark several days ago? ...

Did you run a benchmark several days ago?

You may need to delete prime.spl and take the contents of results.json.txt and submit them manually through the Manual Results web page --- but first lets...
Forum: Factoring 2022-06-14, 00:41
Replies: 61
Views: 4,374
Posted By Prime95
Means there is a bug in prime95. Look for...

Means there is a bug in prime95.

Look for instructions on the forum as to how to run stage1 in prime95, stage 2 in GMP-ECM. You'll be glad you did (~3x more throughput).
Forum: Marin's Mersenne-aries 2022-06-11, 02:05
Replies: 856
Views: 139,630
Posted By Prime95
These oversized CERTs are due to a partial proof...

These oversized CERTs are due to a partial proof file upload. This was likely a standard proof power 8 or 9, but only 20% or so of the proof file made it to the server before the client was never...
Forum: PrimeNet 2022-06-09, 05:15
Replies: 10
Views: 555
Posted By Prime95
Comparing GHz-days across different work types is...

Comparing GHz-days across different work types is problematic. The CPU credit formula was developed in 2008. Back then GPUs couldn't do TF. Nowadays, GPUs are blazingly fast at TF and give tons of...
Forum: mersenne.ca 2022-06-07, 02:25
Replies: 928
Sticky: mersenne.ca
Views: 124,707
Posted By Prime95
Note there are updated curve counts on the GIMPS...

Note there are updated curve counts on the GIMPS ECM page as of last week (yes I should have done this years ago). These come from GMP-ECM -- these guys know more about ECM than I ever will.

...
Forum: Software 2022-06-03, 15:55
Replies: 6
Views: 719
Posted By Prime95
timeit.asm is not used at all

timeit.asm is not used at all
Forum: And now for something completely different 2022-06-01, 19:20
Replies: 184
Views: 11,384
Posted By Prime95
IANAL. Yes, GPL and gwnum licencses are...

IANAL. Yes, GPL and gwnum licencses are incompatible.

That said, I believe there is no issue with publishing source code that allows a user to create an executable linked with gwnum for their own...
Forum: And now for something completely different 2022-05-31, 22:49
Replies: 184
Views: 11,384
Posted By Prime95
gwsmallmul is not particularly cheap. Try...

gwsmallmul is not particularly cheap. Try GWMUL_MULBYCONST instead.
Forum: Information & Answers 2022-05-27, 09:16
Replies: 2
Views: 984
Posted By Prime95
It is odd that the MD5 of every proof file is the...

It is odd that the MD5 of every proof file is the same.

What are the sizes of these files? Are the first few lines readable?

A random sampling of these exponents show that they are...
Forum: Software 2022-05-22, 00:30
Replies: 615
Views: 50,571
Posted By Prime95
I cannot reproduce this problem. Has anyone else...

I cannot reproduce this problem. Has anyone else seen benchmarking issues with build 15? Does the hwloc output in results.bench.txt look reasonable?



This is indeed new behavior. I haven't...
Forum: Software 2022-05-21, 00:24
Replies: 615
Views: 50,571
Posted By Prime95
I can add this (probably will) but it is a...

I can add this (probably will) but it is a semi-worthless feature.

Say you ask Pfactor to find profitable bounds where a factor saves 50 LL tests for exponents around 100K and 10M.
Well a 100K LL...
Forum: Software 2022-05-19, 20:45
Replies: 615
Views: 50,571
Posted By Prime95
Yes, first and last files. Do you have...

Yes, first and last files.

Do you have access to dropbox or equivalent that can handle a 7GB file?
Forum: Software 2022-05-19, 17:17
Replies: 615
Views: 50,571
Posted By Prime95
Yes. I think gpuowl automatically tries...

Yes.

I think gpuowl automatically tries smaller proof powers. I've added that feature to my prime95 to-do list.
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