12/29/2023 0 Comments Best boinc config fileThe problem with multiple GPU's is that you have to specify to BOINC that you have 2 GPU's and that you want them to be used. The difference between PCI 3 and 2 would be noticeable on other GPU projects, but on GPUGRID the difference is very minimal, however, I wouldn't understand why you would want to put the more powerful GPU in a less powerful PCI slot, unless you ran into conflicts or something.Īlso there is the question do I need to do anything special to keep one of the GPU's from shutting off every time a task finishes? Yes, you would want to do this in situations not crunching related. I can answer your first and last questions.Īlright then my follow up question would be I assume I would want the 680 in the PCI 3.0 so it has the best transfer speeds, and to move the 640 to the PCI 2.0? You really don't want like cards in SLI mode as it can slow the work down considerably. If I'm around, I like to have the 680 finish the jobs the 560 has been working on (as soon as it finishes it's own wu) makes things go much faster. Yes you can, I have a GTX680 in the same box as a GTX560 and it is reported as 2 680's in my account. Sorry to say, but I have forgotten what this text is, and am hoping someone else may help you here.Īs for drivers, I'm pretty sure that the driver for the 640 works with the 680, as they are in the same series, however, this is coming from my experience with Windows and not with Ubuntu, as I only have Windows systems.Ĭheck out this thread for more information: Using two different GPUs.Īlso, maybe this thread may help you: HOW TO - Install NVIDIA drivers on Linux 64 bit (generic) On Windows, it wasn't present already, so I had to make one, and then add the line of text. To tell BOINC to use more than one GPU, you have to add a line of text to a certain BOINC config file. For example, I have two GTX 670's that aren't in SLI mode, but both still run tasks for GPUGRID. I don't know about Ubuntu, but on Windows multiple GPU's can be used. I am not looking to make the purchase immediately, rigth now I am just trying to scope out to see if it is possible. I am just wondering if there are weird driver considerations, and I run Ubuntu 12.04 and I do not know if that also has the issues where the computer will automatically disable any GPU that does not appear to be in use. While I do have two systems I already learned that the passively cooled GPU does not fit into my older system, which has the lowest power GPU, and its fairly new so I do not want to not use it. I am wondering if it would be possible to add a GTX 680 into my system. I currently have a Passively cooled GT 640 GPU in there that is running nice. Asus P8B75-V Mother board has 1 PCI 3.0 x16 and one PCI 2.0 x16 (not quite sure what the last bit means unless it is just specifying its location in the tower). Intel i5 ivy bridge GPU ( No hyperthreading so only 4 cores for crunching), But I am wondering if it is possible to run multiple GPU's on BOINC in one system.
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