How do I make sure only two APs or 2 two MBs execute simultanesously. Does it even matter if I end up with a mix running on a single GPU? I suppose that should have been my first question lol...

Thanks,

Chris

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Interestingly, I think I've read over the years that mixing the type of work being done on one resource tends to yield faster execution. The only real issue with GPUs is the amount of memory consumed by the tasks, especially when you allow multiple tasks to run simultaneously on one GPU.

A lot of people run 3 MBs but only 2 APs, and it gets kind of sketchy when they start mixing if you have the configuration set to pretty much the absolute maximum capacity instead of somewhat conservative to allow for some headroom.

I am by no means a GPU expert though, so the more seasoned veterans should chime in before long with a better/right answer.

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Linux laptop:
record uptime: 1511d 20h 19m (ended due to the power brick giving-up)

My machine runs 4 AP or 3 MB best. When mixed 2 AP 1 MB the MB runs slow. When 1 AP 2 MB all is okay. My AP is 0.25 and MB is 0.33.

I don't know how to limit to one type only.

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To overcome Heisenbergs:
"You can't always get what you want / but if you try sometimes you just might find / you get what you need." -- Rolling Stones

Maybe this could give you a path to follow: http://setiathome.berkeley.edu/forum_thread.php?id=74386&postid=1495559

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Thanks! Now a second question. Is there anyway to have different settings for for different GPUs in a single system. For example, in one machine I have 560 Ti and a 750 Ti. I'd like to run 2 AP's on the 750 a 1 on the 560. The same would apply to different command line settings for AP or even running CUDA 5.0 on the 750 ti vs CUDA 4.2 on the 560 ti?

Thanks,

Chris

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The only safe way i know to do that is by running 2 diferent instances of Boinc on the same host, since your 2 GPUs are from the same arquitecture (NVidias), something not easy to do and few realy knows how to do.

If you wish to try, there is a guide on Vypers site, but be aware, try only if you realy knows wath you are doing, it´s for (very) advanced users.

Here is the link: http://vyper.kafit.se/wp/index.php/2011/02/04/running-different-nvidia-architectures-most-optimal-at-setihome/

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