several diff questions
2 Aug 2015 14:50:55 UTC
Topic 198167
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hi, I have been reading lots of info on the threads,but cant find or more than likely don't understand. but how can I get better use out of my gpu's for e@h?..not sure if it shows what my system is so I will put it here, temps are not a prob as I have great cooling in my sys. mb.990fx sabertooth r2.0 amd 9590 8 core cpu..16gb gskill 1866 cL9 mem..2tb raid 0 hd's ..2 zotac NVidia 1gb 560,s in sli...also I have 2 older dell 970 workstations each with duel zenon 2.8 cpu's with xp pro just sitting here unused.they have old quadro 1400's for pcie cards (not cuda ) I think,but could put cuda cards in them.could I use them for E@H ? that's all that would be run on them.i am worried about having them connected to my network. so could work be downloaded then blocked from my network until work is done then unlocked to upload and download? I hope this is the right place to ask these questions.thank you very much for any help answering my questions,ps I know the 560 are old but will be upgrading soon they are what I had on hand when I built this sys
several diff questions
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Easiest way to get better performance out of your GPUs would be to go to your Einstein@home prefs and change the BRP utilization factor to run multiple tasks on the GPUS, use either 0.5 to run 2 tasks at a time or 0.33 to run 3 tasks at a time. As to which will work best you would have to experiment with both settings, I'm running x2 on my 660Ti.
This setting will take effect after Boinc has asked for and downloaded new GPU work.
I would also recommend you install a GPU monitoring program so you can keep an eye on both performance and temps while you experiment. GPU-Z from TechPowerUp works well for me.
If the Quadro cards are not CUDA capable you won't be able to use them to run tasks although the CPUs in those machines would be useful if you feel you can afford the power cost to run them.
If you don't feel like having them connected all the time then there's no need, just create a separate venue for them in your prefs and set the cache ("Computer is connected to..." and "Maintain enough work...") to a few days, let Boinc finish downloading tasks and then disconnect until almost all tasks are done, connect them again and let Boinc both upload the results and download new tasks then disconnect again. Rinse and repeat.
To add to Holmis's
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To add to Holmis's suggestions, once you see good stability, you may find setting the "Run beta/test application versions?" tickbox also improves performance picking up the newer E@H applications.
Some later model nvidia are seeing a good performance increase with the newer applications,though i did not see much improvement on my old i3-530 + 2xGTX460. Despite it's age, it still RACs around 90-100K / day mostly on the BRP6 application (at 0.5). I would expect your 2xGTX560 should be close to that or better if they can run 7x24.
The Quadro cards are as you say not cuda supported, but you might want to move the GTX560s into the Dells, after you upgrade.
hi, thanks for the answers.i
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hi, thanks for the answers.i have monitoring software, and do keep an eye on the temps while I play with the settings....I am planning to move the 560's to the dell's when I upgrade.i figure running them 24/7 in the basement during the winter, I will be able to shut the heat off in the basement and still keep it at a cool temp (how I like it)and balance out my energy costs. thanks again