- Nov 14, 2000
- 4,823
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although plenty of results came up in my thread search for multi-GPU crunching, i couldn't find definitive answers to my questions:
1) i've seen that folks can run their ATI/AMD cards in Crossfire and their nVidia cards in SLI, but is it possible to run multiple video cards and devote each to their own set of WU's (as opposed to using 2 cards in Xfire or SLI to crunch the same WU or set of WU's)? i figure since neither Xfire nor SLI scales perfectly (for instance, 2 cards in Xfire or SLI do not literally yield twice the performance as a single card), it seems logical that two identical (or very similar) cards, each dedicated to their own sets of WU's, would yield approx. twice the production as a single card, whereas those same 2 cards in Xfire or SLI would yield considerably less than twice the production of a single card.
2) It seems lots of folks have to deal with slow, choppy GUI's when their video cards are hard at work crunching. would it be possible to use my mobo's integrated graphics for display purposes, while using a discrete video card in one of the PCIe slots (though not even hooked up to a monitor) solely for crunching (in an attempt to stave off a slow GUI)?
3) is it possible to have an nVidia card in one PCIe slot (for say crunching E@H or S@H) and an ATI/AMD card in another PCIe slot (for say crunching MW@H)? or am i asking for all sorts of driver issues by attempting this? and for that matter, can i even use two different nVidia cards (for example, a GTX 460 and a GTX 560) or two different ATI/AMD cards (for example, an HD 5870 and an HD 6950)? i don't know if it'll affect the answer to this question, but again i would probably want to run integrated video for display purposes and devote the cards solely to crunching their own projects if possible...
those are all the questions i can think of for now...
TIA,
Eric
1) i've seen that folks can run their ATI/AMD cards in Crossfire and their nVidia cards in SLI, but is it possible to run multiple video cards and devote each to their own set of WU's (as opposed to using 2 cards in Xfire or SLI to crunch the same WU or set of WU's)? i figure since neither Xfire nor SLI scales perfectly (for instance, 2 cards in Xfire or SLI do not literally yield twice the performance as a single card), it seems logical that two identical (or very similar) cards, each dedicated to their own sets of WU's, would yield approx. twice the production as a single card, whereas those same 2 cards in Xfire or SLI would yield considerably less than twice the production of a single card.
2) It seems lots of folks have to deal with slow, choppy GUI's when their video cards are hard at work crunching. would it be possible to use my mobo's integrated graphics for display purposes, while using a discrete video card in one of the PCIe slots (though not even hooked up to a monitor) solely for crunching (in an attempt to stave off a slow GUI)?
3) is it possible to have an nVidia card in one PCIe slot (for say crunching E@H or S@H) and an ATI/AMD card in another PCIe slot (for say crunching MW@H)? or am i asking for all sorts of driver issues by attempting this? and for that matter, can i even use two different nVidia cards (for example, a GTX 460 and a GTX 560) or two different ATI/AMD cards (for example, an HD 5870 and an HD 6950)? i don't know if it'll affect the answer to this question, but again i would probably want to run integrated video for display purposes and devote the cards solely to crunching their own projects if possible...
those are all the questions i can think of for now...
TIA,
Eric