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Search: Posts Made By: jas
Forum: Marin's Mersenne-aries 2020-10-19, 06:38
Replies: 899
Views: 58,060
Posted By jas
I didn't -- the machine is configured for "GIMPS...

I didn't -- the machine is configured for "GIMPS - what makes sense". I received the (mismatched) LL DC work on 2020-10-13 and had been running mprime v30.3 since 2020-09-16 with several completed...
Forum: Marin's Mersenne-aries 2020-10-18, 11:05
Replies: 899
Views: 58,060
Posted By jas
Why did my mprime v30 client do a LL DC on...

Why did my mprime v30 client do a LL DC on M54604643? Shouldn't it have done a PRP-VDF instead? If my client had done a PRP-VDF, someone else could have verified the CERT, and the bogus LL result...
Forum: Marin's Mersenne-aries 2020-10-14, 13:39
Replies: 899
Views: 58,060
Posted By jas
It was in the subject -- M54604643. /Simon

It was in the subject -- M54604643.

/Simon
Forum: Marin's Mersenne-aries 2020-10-14, 13:29
Replies: 899
Views: 58,060
Posted By jas
Could someone check M54604643?

I got a LL-Mismatch failure on one of my machine, that has ECC memory and has been quite stable. Could someone double check it? Not sure why the machine is doing LL DC's at all, it is using mprime...
Forum: Marin's Mersenne-aries 2020-08-18, 10:03
Replies: 899
Views: 58,060
Posted By jas
Wow that was quick! Thank you.

Wow that was quick! Thank you.
Forum: Marin's Mersenne-aries 2020-08-16, 21:07
Replies: 899
Views: 58,060
Posted By jas
Double check request

Hi. I got a LL-Mismatch. Could someone please double check this one? So I can debug the machine if there is a problem with my computation.
...
Forum: Software 2020-04-16, 07:36
Replies: 6
Views: 2,071
Posted By jas
Best use of high-memory machines?

Hi. I have a couple of machines with larger amounts of memory that I would like to use for the best purpose for GIMPS (with a slight personal bias towards actually making history and find a new...
Forum: PrimeNet 2020-04-09, 11:11
Replies: 7
Views: 2,197
Posted By jas
Thank you -- my mistake. /Simon

Thank you -- my mistake.



/Simon
Forum: PrimeNet 2020-04-09, 09:31
Replies: 7
Views: 2,197
Posted By jas
How to request smallest >100M numbers for PRP?

I want to do PRP-testing of the smallest available first-time >100M numbers. I have enabled the "get the smallest exponents" setting. However, when I configure my client for SrvrPO1=153, I received...
Forum: Software 2020-03-23, 07:13
Replies: 14
Views: 3,762
Posted By jas
Thank you for double-testing! Phew. ...

Thank you for double-testing! Phew.



Btw, does anyone have experience running mprime with ES/QS CPU's? They are considerably cheaper than non-ES/QS on ebay, but I've been staying away from...
Forum: Software 2020-03-20, 13:42
Replies: 14
Views: 3,762
Posted By jas
The machine has completed 12 tests before -- 2...

The machine has completed 12 tests before -- 2 DC, 4 LL, 4 PRP -- since I started it on february 12th. It is a Dell R620 server (not overclocked) with 2xE5-2650v1, hosted at a co-location facility...
Forum: Software 2020-03-20, 13:32
Replies: 14
Views: 3,762
Posted By jas
Yay, thank you! The disk is non-RAID...

Yay, thank you!



The disk is non-RAID ext4 so disk corruption may happen, however the program was never halted during the test of that number so I'm not sure how relevant disk corruption could...
Forum: Software 2020-03-20, 07:18
Replies: 14
Views: 3,762
Posted By jas
My DC mismatched - how to doublecheck?

Hi!



I just completed a double check that mismatched:


https://www.mersenne.org/report_exponent/?exp_lo=50866657&full=1
Forum: Software 2020-02-19, 10:51
Replies: 46
Views: 9,470
Posted By jas
Thank you for the links! This seems to...

Thank you for the links!



This seems to confirm my findings (or do you disagree?):


- make sure all memory channels are populated (significant performance differences!)
Forum: Software 2020-02-13, 08:30
Replies: 46
Views: 9,470
Posted By jas
I received 8x8GB DDR4-2133 now, and re-ran 20480K...

I received 8x8GB DDR4-2133 now, and re-ran 20480K FFT benchmarks. The performance now scale by number of cores up to 24 cores properly. The number of workers 2-24 does not seem to care, having 24...
Forum: Software 2020-02-08, 09:56
Replies: 46
Views: 9,470
Posted By jas
Thank you -- this makes sense, and I have ordered...

Thank you -- this makes sense, and I have ordered more memory from ebay now. Will do more testing once I get it.


Btw, how much memory can mprime use? I ordered 8x16GB now but if 8x8GB or even...
Forum: Software 2020-02-05, 08:03
Replies: 46
Views: 9,470
Posted By jas
Yeah I realized this too after sending the...

Yeah I realized this too after sending the message.


Which FFT implementation is used by default? Saying Y to test all FFT implementations appear to do each FFT size multiple times, but the...
Forum: Software 2020-02-05, 07:56
Replies: 46
Views: 9,470
Posted By jas
Sorry post 11 was wrong -- this machine is indeed...

Sorry post 11 was wrong -- this machine is indeed v3. I have several machines with varying mix of v1, v2 and v3..


/Simon
Forum: Software 2020-02-04, 18:30
Replies: 46
Views: 9,470
Posted By jas
Yes, the 2673v2 has 12 cores per CPU. It seems...

Yes, the 2673v2 has 12 cores per CPU. It seems the same performance generalized to 20480K FFTs too, so I will use 2 workers with 24 cores for real usage on this machine. And I've learned how to...
Forum: Software 2020-02-04, 16:26
Replies: 46
Views: 9,470
Posted By jas
Thank you for hints! I will run much larger FFT...

Thank you for hints! I will run much larger FFT sizes. If anybody is interested, below is statistics for 2048k FFT on this machine with more core/worker combinations... Seems to peak at 22 core...
Forum: Software 2020-02-04, 11:36
Replies: 46
Views: 9,470
Posted By jas
Thank you -- I just found the Benchmarking option...

Thank you -- I just found the Benchmarking option of the mprime program, so I'm running it now and it generates interesting data. I'm not sure how to interpret it yet though.

What FFT size is...
Forum: Software 2020-02-02, 15:37
Replies: 46
Views: 9,470
Posted By jas
Best settings for 2xE5-2673 machine?

I'm struggling with how to configure mprime the best. I have a machine with two E5-2673v3 CPUs. They have 12 cores each, so 24 cores, and multithreaded so /proc/cpuinfo shows 48 cpus. How many...
Forum: Software 2020-01-31, 14:02
Replies: 5
Views: 2,290
Posted By jas
Yay, thank you!

Yay, thank you!
Forum: Software 2020-01-31, 08:47
Replies: 5
Views: 2,290
Posted By jas
Finish started assignments but don't get new?

Hi! I'm running mprime on linux on several machines, but there is one machine that I want to use for another purpose. I'm happy to let it finish compute the assignments I got, but I don't want it...
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