mersenneforum.org  

Go Back   mersenneforum.org > Search Forums

Showing results 1 to 19 of 19
Search took 0.01 seconds.
Search: Posts Made By: Xyzzy
Forum: Msieve 2021-08-02, 15:20
Replies: 46
Views: 24,628
Posted By Xyzzy
GPU = Quadro RTX 8000 LA = 3331s Now...

GPU = Quadro RTX 8000
LA = 3331s

Now that we can run msieve on a GPU we have no reason to ever run it on a CPU again. This result is 3.8× faster (!) than the best CPU time we ever recorded!...
Forum: Msieve 2021-05-09, 19:12
Replies: 46
Views: 24,628
Posted By Xyzzy
3h32m38s is a new record, for us! But look...

3h32m38s is a new record, for us!

But look at this weird message:

Msieve v. 1.54 (SVN 1030)
...
commencing linear algebra
...
commencing Lanczos iteration (32 threads)
...
Forum: Msieve 2021-05-09, 19:09
Replies: 46
Views: 24,628
Posted By Xyzzy
CPU = 10980XE (999W) RAM = 8×32GB DDR4-3200 ...

CPU = 10980XE (999W)
RAM = 8×32GB DDR4-3200
CMD = ./msieve -v -nc -t 36
LA = 12758s

:mike:
Forum: Msieve 2021-04-13, 22:36
Replies: 46
Views: 24,628
Posted By Xyzzy
CPU = 10980XE (165W) RAM = 8×32GB DDR4-3200 ...

CPU = 10980XE (165W)
RAM = 8×32GB DDR4-3200
CMD = ./msieve -v -nc -t 18
LA = 16343s

CPU = 10980XE (165W)
RAM = 8×32GB DDR4-3200
CMD = ./msieve -v -nc -t 36
LA = 14709s
Forum: Msieve 2020-11-17, 17:13
Replies: 46
Views: 24,628
Posted By Xyzzy
They were single rank...

They were single rank (https://www.mersenneforum.org/showpost.php?p=553372&postcount=30) sticks.

We don't have the 3950X anymore so we can't retest it.

:sad:
Forum: Msieve 2020-11-17, 14:56
Replies: 46
Views: 24,628
Posted By Xyzzy
CPU = 1920X RAM = 4×16GB DDR4-2666 CMD =...

CPU = 1920X
RAM = 4×16GB DDR4-2666
CMD = ./msieve -v -nc -t 24
LA = 7h 58m 53s

CPU = 3950X
RAM = 2×8GB DDR4-3666
CMD = ./msieve -v -nc -t 16
LA = 7h 33m 00s
Forum: Msieve 2020-11-17, 14:47
Replies: 46
Views: 24,628
Posted By Xyzzy
CPU = 5600X RAM = 2×16GB DDR4-3200 CMD =...

CPU = 5600X
RAM = 2×16GB DDR4-3200
CMD = ./msieve -v -nc -t 12
LA = 14805s

:mike:
Forum: Msieve 2020-10-30, 11:08
Replies: 46
Views: 24,628
Posted By Xyzzy
Given that the 1920X and 3950X are pretty serious...

Given that the 1920X and 3950X are pretty serious CPUs, does the result for the i5 seem abnormally fast?

CPU = 1920X
RAM = 4×16GB DDR4-2666
CMD = ./msieve -v -nc -t 24
LA = 7h 58m 53s

CPU =...
Forum: Msieve 2020-10-30, 10:53
Replies: 46
Views: 24,628
Posted By Xyzzy
CPU = i5-10600K RAM = 2×8GB DDR4-3200 CMD =...

CPU = i5-10600K
RAM = 2×8GB DDR4-3200
CMD = ./msieve -v -nc -t 6
LA = 21988s

:mike:
Forum: Msieve 2020-08-30, 09:03
Replies: 46
Views: 24,628
Posted By Xyzzy
Here are binaries for 64-bit Linux with various...

Here are binaries for 64-bit Linux with various "VBITS" flags set.

:mike:
Forum: Msieve 2020-08-12, 17:59
Replies: 46
Views: 24,628
Posted By Xyzzy
CPU = 3950X RAM = 2×8GB DDR4-3666 CMD =...

CPU = 3950X
RAM = 2×8GB DDR4-3666
CMD = ./msieve -v -nc -t 16
LA = 27180s

:mike:
Forum: Msieve 2020-08-08, 17:00
Replies: 46
Views: 24,628
Posted By Xyzzy
CPU = i7-8565U RAM = 2×16GB DDR4-2400 CMD =...

CPU = i7-8565U
RAM = 2×16GB DDR4-2400
CMD = ./msieve -v -nc -t 4
LA = 51662s

:mike:
Forum: Msieve 2020-08-07, 16:31
Replies: 46
Views: 24,628
Posted By Xyzzy
CPU = i7-8565U RAM = 2×16GB DDR4-2400 CMD =...

CPU = i7-8565U
RAM = 2×16GB DDR4-2400
CMD = ./msieve -v -nc -t 8
LA = 47884s

:mike:
Forum: Msieve 2020-04-27, 22:12
Replies: 46
Views: 24,628
Posted By Xyzzy
The 20 thread run somehow ended up slower than...

The 20 thread run somehow ended up slower than the 12 thread run.

12 = 8h04m50s
20 = 8h32m31s
24 = 7h59m33s

:mike:
Forum: Msieve 2020-04-27, 12:16
Replies: 46
Views: 24,628
Posted By Xyzzy
We ran a 24 thread test last night. It was 1.09%...

We ran a 24 thread test last night. It was 1.09% faster than the 12 thread job. During the run, the CPU reported roughly 1700% utilization, so there must be a lot of overhead and/or bottlenecks. We...
Forum: Msieve 2020-03-10, 12:45
Replies: 46
Views: 24,628
Posted By Xyzzy
Here are benchmarks for 1 through 12 cores on our...

Here are benchmarks for 1 through 12 cores on our 1920X and a pretty chart.

The blue line in the chart represents perfect additional core utilization. For example, two cores would be twice as fast...
Forum: Msieve 2020-02-18, 12:53
Replies: 46
Views: 24,628
Posted By Xyzzy
Since there is no mention of threads or target...

Since there is no mention of threads or target density in the log files, these runs must have been done with the default target density and one thread.

linux.log.gz is an AMD 1920X CPU with...
Forum: Msieve 2020-02-18, 03:28
Replies: 46
Views: 24,628
Posted By Xyzzy
Is there any way to tell how many cores and what...

Is there any way to tell how many cores and what target density was used by viewing the log file?

Maybe we are looking in the wrong place? Or maybe we can patch the source to include this info?
...
Forum: Msieve 2020-02-03, 22:39
Replies: 46
Views: 24,628
Posted By Xyzzy
Msieve benchmarking

We have uploaded a data file to use for msieve benchmarking.

https://www.dropbox.com/s/si1kyxq7yerahcw/benchmark.tar.gz

$ md5sum benchmark.tar.gz
ba398f2ff3c2aff9a6c6f8cbb6a96a93 ...
Showing results 1 to 19 of 19

 
All times are UTC. The time now is 17:55.


Tue Dec 7 17:55:42 UTC 2021 up 137 days, 12:24, 2 users, load averages: 1.62, 1.51, 1.41

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.