mersenneforum.org  

Go Back   mersenneforum.org > Search Forums

Showing results 1 to 25 of 186
Search took 0.03 seconds.
Search: Posts Made By: drkirkby
Forum: GPU Computing 2021-05-08, 23:42
Replies: 1
Views: 19
Posted By drkirkby
Help needed - needing a Nvidia Tesla K80 in a Dell 7920 tower workstation

I'm trying to get an Nvidia Tesla K80 GPU I bought used from eBay, working in a Dell 7920 tower workstation. (There is also a rackmount version of this workstation).

The Nvidia Tesla K80 has no...
Forum: Lounge 2021-05-08, 21:27
Replies: 11
Views: 7
Posted By drkirkby
Can you make enough money to actually pay for the...

Can you make enough money to actually pay for the graphics card? Or is it a case of you bought a graphics card for playing games, and it earns you a little money. Clearly if it earns you $25/month,...
Forum: Lounge 2021-05-08, 20:40
Replies: 212
Views: 35,143
Posted By drkirkby
I think rule 0 should be that all rules are...

I think rule 0 should be that all rules are printed in the same size text, so rules that disqualifies people are not in small text. See screenshot from my mobile phone.

Actually the Primenet...
Forum: Lounge 2021-05-08, 20:08
Replies: 11
Views: 7
Posted By drkirkby
I thought ASICs had essentially made GPUs...

I thought ASICs had essentially made GPUs uneconomic for mining, or am I mistaken?

I have a friend who has loads of solar panels and a wind turbine. I have suggested to him the possibility of...
Forum: Lounge 2021-05-08, 18:39
Replies: 212
Views: 35,143
Posted By drkirkby
One could argue that the graph is levelling off. ...

One could argue that the graph is levelling off.

Dave.
Forum: Software 2021-05-08, 17:05
Replies: 13
Views: 251
Posted By drkirkby
50 P-1 tests will take an awful long time, with...

50 P-1 tests will take an awful long time, with zero chance of finding a prime.

Is it possible to force a P-1 test on exponents one has a PRP test for? For example, I will start the category 0...
Forum: Lounge 2021-05-08, 12:07
Replies: 212
Views: 35,143
Posted By drkirkby
I am 100% confident that M100, with the exponent...

I am 100% confident that M100, with the exponent 252097800623 is a Mersenne Prime, and will be discovered on 1st April. So that does not count as a guess.

My guesses, with very little confidence,...
Forum: Software 2021-05-07, 21:33
Replies: 290
Views: 21,853
Posted By drkirkby
You might want to consider changing the first...

You might want to consider changing the first sentence of that thread

"Welcome to the GIMPS gpu computing reference blog site map / table of contents."

It implies it is all about GPUs, but...
Forum: Software 2021-05-07, 21:03
Replies: 290
Views: 21,853
Posted By drkirkby
Thank you

Thank you
Forum: Software 2021-05-07, 19:48
Replies: 290
Views: 21,853
Posted By drkirkby
Is there a document that defines precisely the...

Is there a document that defines precisely the format of the worktodo.txt file used by mprime/Prime95? On the assignments page
https://www.mersenne.org/workload/
there's a copy of the worktodo.txt...
Forum: Software 2021-05-07, 19:26
Replies: 290
Views: 21,853
Posted By drkirkby
If your results have not been submitted (i.e. you...

If your results have not been submitted (i.e. you have no CPU credit), then you can manually submit the results at

https://www.mersenne.org/manual_result/
I found once that was done, proof files...
Forum: Software 2021-05-07, 19:18
Replies: 13
Views: 251
Posted By drkirkby
No. One instance, two workers. Each worker has 26...

No. One instance, two workers. Each worker has 26 cores. From the benchmarks I have done, two workers seems optimal for maximum throughput. Running two instances works poorly - see more comments...
Forum: Software 2021-05-07, 10:57
Replies: 13
Views: 251
Posted By drkirkby
True, the title does not says mprime, but the...

True, the title does not says mprime, but the first sentence does. I thought the two programs were essentially identical. When I run mprime, and request the version, it actually says Prime95, not...
Forum: Hardware 2021-05-07, 10:49
Replies: 15
Views: 403
Posted By drkirkby
What is the power consumption of your computer...

What is the power consumption of your computer when it is idle? The clock speed of the CPU would probably fall to a value well below that you usefully use for anything. I do wonder if the amount of...
Forum: Software 2021-05-07, 08:54
Replies: 13
Views: 251
Posted By drkirkby
It's far from clear how to benchmark this - the...

It's far from clear how to benchmark this - the links did not help. There are several issues
1) The new version of mprime is supposed to be much better for P-1 factoring than older versions. That's...
Forum: Software 2021-05-06, 19:18
Replies: 13
Views: 251
Posted By drkirkby
How can one benchmark P-1 testing?

I understand the latest version of mprime can use quite a bit or RAM for P-1 testing. I have 384 GB, and wanted to know how much RAM to allocate on a dual CPU system. Each CPU has 192 GB local to it,...
Forum: PrimeNet 2021-05-06, 16:19
Replies: 15
Views: 371
Posted By drkirkby
thank you. I see that in the end. I have...

thank you. I see that in the end. I have installed it. Memory usage did go up to about 140 GB, which is what I set it to.



Dave
Forum: Software 2021-05-06, 12:42
Replies: 290
Views: 21,853
Posted By drkirkby
On dual-processor machines, would it be wise to...

On dual-processor machines, would it be wise to limit the RAM for P-1 to a bit under half the system memory? The reason I ask is that any particular DIMM will be close to one CPU where access is...
Forum: PrimeNet 2021-05-06, 07:08
Replies: 15
Views: 371
Posted By drkirkby
That's not on the main download page. Is it a...

That's not on the main download page. Is it a beta version? I see a note from Prime95 the other day about a version that had undergone some testing. I would need to find the post about it.

I...
Forum: Hardware 2021-05-06, 07:01
Replies: 15
Views: 403
Posted By drkirkby
I have heard it said that reducing the number of...

I have heard it said that reducing the number of cores mprime uses, will reduce power without a massive reduction in performance. I have dual CPUs with 26-cores, and someone suggested going down...
Forum: PrimeNet 2021-05-05, 19:55
Replies: 15
Views: 371
Posted By drkirkby
24 and it is pretty much running 24/7. I...

24 and it is pretty much running 24/7.

I think the issue might be I had some exponents on it that were allocated a month or more ago on slower machines, which I moved to this machine. I have now...
Forum: PrimeNet 2021-05-05, 19:39
Replies: 15
Views: 371
Posted By drkirkby
I thought had configured the website to give me...

I thought had configured the website to give me the smallest exponents, but I had not. I could have swore I did that before, but maybe I am going mad.

I adjusted the days of work to queue to be 3...
Forum: PrimeNet 2021-05-05, 19:21
Replies: 15
Views: 371
Posted By drkirkby
I downloaded the latest from ...

I downloaded the latest from
https://www.mersenne.org/download/
[dkirkby@jackdaw tmp]$ ./mprime -v
Mersenne Prime Test Program: Linux64,Prime95,v30.3,build 6
That's what I'm already running. ...
Forum: PrimeNet 2021-05-05, 14:55
Replies: 15
Views: 371
Posted By drkirkby
I got it assigned to me ...

I got it assigned to me
https://www.mersenne.org/report_exponent/?exp_lo=103747177&exp_hi=&full=1
as a category 1 assignment, despite the PRP test had probably finished 20 minutes earlier.

The...
Forum: PrimeNet 2021-05-05, 14:20
Replies: 1
Views: 53
Posted By drkirkby
Making sense of "P4 effective equivalent" / CPU rolling average

I joined here on 2021-01-09. (116 days ago) and earned 21898 GHz days in those 116 days. I've had a few computer on here on/off, but two have been on here all the time. The P4 equivalent speed of...
Showing results 1 to 25 of 186

 
All times are UTC. The time now is 01:24.

Sun May 9 01:24:20 UTC 2021 up 30 days, 20:05, 0 users, load averages: 1.98, 1.78, 1.72

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.