Posts by DaiKiwi

1) Message boards : Number crunching : running multiple GPUs on one motherboard (Message 75073) Posted 21 Feb 2023 by DaiKiwi Post: You should be able to run the R9 280x and the 5600G together using the (Win10) Software Adrenalin 2020 Edition 21.5.2 drivers (not the legacy version). That is the last one that supports the GCN and RX and integrated Vega graphics all at the same time. The Firepro is a Hawaii card - same guts as a 290x - so it might(?) work under that driver even if not officially. Alternatively the 280x might(?) work with the Firepro's driver (and there is a Win 10 version as well as Win7). I think you MIGHT fluke it lucky, but otherwise it probably will be using any 2 of the 3 that you have. Good luck - hope you get a combination that works.
2) Message boards : Number crunching : New Benchmark Thread - times wanted for any hardware, CPU or GPU, old or new! (Message 75065) Posted 19 Feb 2023 by DaiKiwi Post: For max points you should be running 3 or 4 concurrent tasks on that 7970 if you haven't tried already. On the K6000 you will most likely get errors if you go for more than the 6 concurrent you're doing now. Thanks for the advice. I'll leave the Quadro as is. I've changed the 7970 to 3 workunits - it is running stable, but hot enough that I've placed a fan blowing directly on the back of the card. Probably time to pull it out, check dust, paste, etc, etc. <sigh> A question: I've just bought a 6GB version of the 7970, currently waiting for it to arrive. The extra RAM isn't going to make any difference in performance on Milky Way, but does anyone think there's any other projects it might make a difference for, versus the normal 3GB card? You will be able to run all of the current gpu tasks at Einstein as several require a minimum of 4gb onboard ram now, but I'm wondering if the extra ram will mean you can run even more tasks at the same time here? I'll see what Einstein does once the card arrives. Previously I've only run single E@H tasks. Ah well, it is good to play around, it can keep one entertained for hours and hours. vRam doesn't seem to be a significant issue with MW: The current 3GB 7970 is using less than 500 MB according to both task manager & GPU-Z while running 3 tasks & 95% GPU usage. The K6000 is using about 1.5 GB running 6 tasks & a web browser open with multiple tabs, so practically nothing of its 12GB capacity. (One machine is a FX 6300 w/ 24GB RAM, the other a Ryzen 1700 w/ 32GB) Hence my thought it wouldn't affect things.
3) Message boards : Number crunching : New Benchmark Thread - times wanted for any hardware, CPU or GPU, old or new! (Message 75063) Posted 18 Feb 2023 by DaiKiwi Post: For max points you should be running 3 or 4 concurrent tasks on that 7970 if you haven't tried already. On the K6000 you will most likely get errors if you go for more than the 6 concurrent you're doing now. Thanks for the advice. I'll leave the Quadro as is. I've changed the 7970 to 3 workunits - it is running stable, but hot enough that I've placed a fan blowing directly on the back of the card. Probably time to pull it out, check dust, paste, etc, etc. <sigh> A question: I've just bought a 6GB version of the 7970, currently waiting for it to arrive. The extra RAM isn't going to make any difference in performance on Milky Way, but does anyone think there's any other projects it might make a difference for, versus the normal 3GB card?
4) Message boards : Number crunching : New Benchmark Thread - times wanted for any hardware, CPU or GPU, old or new! (Message 75055) Posted 15 Feb 2023 by DaiKiwi Post: I've been running a RX 580 and a HD 7970 GHz edition. I recently bought a couple of second-hand GPUs to muck around with - a Quadro K6000 and a RX 5700XT. The 7970 is a star, it was doing a task every 45-48 secs, slightly overclocked at 1125MHz. The 580 does a unit in about 100 sec at stock. The 5700 XT was a disappointment, slower than both, and drawing 90%+ load, so I'm not going to try running multiple tasks. The Quadro - basically the same as a Titan Black, slightly down-clocked - takes 250 sec per task using about 15% GPU load. I've now got it happily running 6 tasks at a time, using 85-90% GPU in the same amount of time, so in the same league as the 7970. Alas, I thought it'd be better. I could probably get 7 units without a significant slowdown, but I'll stick with it as is. Unfortunately I can't increase the core speed, it seems locked at 900 MHz, though I can speed up the vram. I've changed the 7970 to processing 2 units, and it is now doing 2 in 70-ish seconds, instead of 1 in 48.
5) Message boards : News : New Poll Regarding GPU Application of N-Body (Message 71010) Posted 23 Jul 2021 by DaiKiwi Post: Well, it'd be a 'maybe' for me. AMD's older Cypress/Cayman/Tahiti/Hawaii cards have 2x-4x the raw FP64 performance of that 3070. Perhaps a test with a 'Tahiti' generation card of the same workunit would give us a bit more of an idea?