Ryzen and Threadripper
Message boards :
Number crunching :
Ryzen and Threadripper
Message board moderation
Previous · 1 . . . 6 · 7 · 8 · 9 · 10 · 11 · 12 . . . 69 · Next
| Author | Message |
|---|---|
 Keith Myers   Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 
 |
I push my 2920X Threadripper right up the point where it is just below the 68°C. package temp limit. Just shy of throttling the clock speed due to temps. Still able to hold all cores north of 4000Mhz with some boosting to around 4100Mhz. I also have high end liquid cooling for the cpu. Seti@Home classic workunits:20,676 CPU time:74,226 hours   A proud member of the OFA (Old Farts Association) |
Wiggo  Send message Joined: 24 Jan 00 Posts: 34932 Credit: 261,360,520 RAC: 489 
|
But then again Keith the 2920X with only 24 threads isn't going to come into the memory contention problems that a 2990WX capable of 64 threads will face, but then Tom has already found that out. Cheers. |
|
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873
|
True. The double length path to memory for two of the dies is an issue with the 4 die Threadrippers. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
bloodrain  Send message Joined: 8 Dec 08 Posts: 231 Credit: 28,112,547 RAC: 1 
|
true and the way gen 1 and gen 1.5. did it are different that the 7nm version of it coming out 
|
|
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873
|
We still don't know the I/O architecture detail of Zen 2 with respect how it is going to be implemented on Threadripper. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
|
jsm Send message Joined: 1 Oct 16 Posts: 124 Credit: 51,135,572 RAC: 298 
|
and what do we do with 128 threads? jsm |
|
Wiggo Send message Joined: 24 Jan 00 Posts: 34932 Credit: 261,360,520 RAC: 489
|
Currently? 1: Other than save power and reduce heat by reducing the number of threads used until you get a happy medium on your CPU times, nothing (sorry). 2: Or wait until they can get better/more memory bandwidth and sharing architecture happening between cores. 3: But in the meantime you could sell it for something more appropriate for use here and maybe get a few $'s back from the deal. ;-) Cheers. |
|
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873
|
I think he was referring to Zen 2 Threadrippers. They have a complete change in cpu architecture from Zen1 and the earlier Threadrippers. Shouldn't have memory issues since the memory access is completely different from what I understand. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
|
Wiggo Send message Joined: 24 Jan 00 Posts: 34932 Credit: 261,360,520 RAC: 489
|
It can only be hoped that they got it right this time. ;-) Cheers. |
|
bloodrain Send message Joined: 8 Dec 08 Posts: 231 Credit: 28,112,547 RAC: 1
|
and what do we do with 128 threads? one thing finale.. happening on the consumer side. is multi core/thread support in software.
|
|
Tom M Send message Joined: 28 Nov 02 Posts: 5124 Credit: 276,046,078 RAC: 462 |
and what do we do with 128 threads? Run multiple copies of BOINC in parallel? :) Tom A proud member of the OFA (Old Farts Association). |
|
jsm Send message Joined: 1 Oct 16 Posts: 124 Credit: 51,135,572 RAC: 298
|
Oh I like that! Could that be done now? With WIN10 or Ubuntu? Perhaps two complete downloads and installation on separate disks so that preference files did not clash. jsm |
|
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873
|
Sure, you can do that now. Just start another client up. Each client has to be installed into its own unique directory. You could start with the wiki. And then follow the instructions for setting up multiple BOINC instances. https://boinc.berkeley.edu/wiki/Controlling_BOINC_remotely https://www.overclock.net/forum/18056-boinc-guides-tutorials/1628924-guide-setting-up-multiple-boinc-instances.html Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
|
bloodrain Send message Joined: 8 Dec 08 Posts: 231 Credit: 28,112,547 RAC: 1
|
lol true or have half go to 1 project and the other half go to another project.
|
|
jsm Send message Joined: 1 Oct 16 Posts: 124 Credit: 51,135,572 RAC: 298
|
At 55% ratio has dropped slightly to 1.16 so we may be past the optimum. Bearing in mind that the start of the test at45% had less than 1 I have dropped the pref to 50% for this next week. I might well have a go at two BOINCS with the second set at lowest possible priority (19?) to see if it then used the less optimum threads but in a way that did not reduce the work on the main threads 'first instance' more than that gained on the second. jsm |
|
Tom M Send message Joined: 28 Nov 02 Posts: 5124 Credit: 276,046,078 RAC: 462 |
At 55% ratio has dropped slightly to 1.16 so we may be past the optimum. Bearing in mind that the start of the test at45% had less than 1 I have dropped the pref to 50% for this next week. I took a look at your tasks and made some guesstimates and came out with as much as 10,000 more RAC than you are currently getting. So it has got me wondering what did I get wrong? :) So now all we need to do is graph it.... Tom A proud member of the OFA (Old Farts Association). |
|
ML1 Send message Joined: 25 Nov 01 Posts: 20372 Credit: 7,508,002 RAC: 20 
 |
I wonder what RAC this will give?! Beyond Rome: AMD's EPYC and Radeon to Power World's Fastest Exascale Supercomputer AMD announced today that it had been selected to power Frontier, which is set to be the world's fastest exascale-class supercomputer when it comes online in 2021. The new supercomputer, which will be built with Cray's Shasta supercomputer blades, is being developed by Cray under a $600 million contract for the U.S. Department of Energy (DOE) for the Oak Ridge National Laboratory. All told, the supercomputer is projected to be faster than the top 160 supercomputers in the world, combined... Can we persuade them to do a soak test with s@h? ;-) Happy fast crunchin'! Martin See new freedom: Mageia Linux Take a look for yourself: Linux Format The Future is what We all make IT (GPLv3) |
|
Tom M Send message Joined: 28 Nov 02 Posts: 5124 Credit: 276,046,078 RAC: 462 |
I wonder what RAC this will give?! I suspect it could absorb/process and return the entire output of the Seti servers and barely notice it.... Tom A proud member of the OFA (Old Farts Association). |
Mike   Send message Joined: 17 Feb 01 Posts: 34259 Credit: 79,922,639 RAC: 80 
 |
I wonder what RAC this will give?!  1.5 Exaflops https://www.planet3dnow.de/cms/46402-amd-epyc-cpus-amd-radeon-instinct-gpus-and-rocm-open-source-software-to-power-worlds-fastest-supercomputer-at-oak-ridge-national-laboratory/ With each crime and every kindness we birth our future. |
Jord  Send message Joined: 9 Jun 99 Posts: 15184 Credit: 4,362,181 RAC: 3 
|
The new AMD Ryzen Gen 3 look interesting enough that I plan to buy one for a system I plan on building later this year. I'll wait for some good motherboards with PCIe 4.0 and perhaps that AMD will be friendly enough to release a newer Radeon VII that can utilize that bus. The CPU I'm eyeing is the Ryzen 7 3700X. https://www.pcgamesn.com/amd/ryzen-3000-release-date-ryzen-3rd-gen-specs-performance-price https://www.tomshardware.com/news/amd-ryzen-3000-everything-we-know,38233.html |
©2024 University of California
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.