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Graphics cards (GPUs) :
How to run two CUDA WUs with single GTX295
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Send message Joined: 24 Feb 09 Posts: 14 Credit: 107,808,533 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]()
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I've one GTX295 card running with QX6700 and the best I can crunch is 3 CPU + 1 CUDA WUs simultaneously. I've set the config for BOINC to run max of 6 tasks but it doesn't work. Is there anyway I can utilise all of my cores (4 CPUs and 2 CUDAs) simultaneously? I'm using BOINC v6.4.7 with 181.71 driver on W7 X64 Build 7057. Thanks in advance |
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Send message Joined: 1 Sep 08 Posts: 37 Credit: 5,864,088 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]()
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It's easy. Install the newest driver 182.08, reboot, go the Nvidia control and disable the simultan GPU mode, restart BOINC Kind regards |
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Send message Joined: 24 Feb 09 Posts: 14 Credit: 107,808,533 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]()
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It's easy. Install the newest driver 182.08, reboot, go the Nvidia control and disable the simultan GPU mode, restart BOINC I think 181.71 is the newest driver for W7 but I found driver version 182.08 intended for Vista x64, is this the one you recommend, right? Will it be compatible with W7? |
KWSN - Sir Brian - err sorry -...Send message Joined: 3 Jul 07 Posts: 14 Credit: 10,010,045 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]()
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also try boinc 6.6.17... taht allows you to run normal boinc apps on all your CPU cores.... |
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Send message Joined: 24 Feb 09 Posts: 14 Credit: 107,808,533 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]()
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also try boinc 6.6.17... Updated BOINC to v6.6.17 and use NVIDIA driver 182.08. Now I can compute 4 CPU WUs +1 CUDA WUs. Still no lick. I did try to disable multi-GPUs and also PhysX GPU acceleration but when BOINC start computing CUDA task, it gave me blue screen error right away or computation error within 3 seconds. This is a possible driver issue or it was my GTX295's fault? |
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Send message Joined: 29 Jan 09 Posts: 17 Credit: 7,767,932 RAC: 0 Level ![]() Scientific publications ![]() ![]()
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also try boinc 6.6.17... things to try. make sure sli is disabled extend you desktop onto the second gpu core. dont use remote desktop. |
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Send message Joined: 24 Feb 09 Posts: 14 Credit: 107,808,533 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]()
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also try boinc 6.6.17... Ahh I'm not sure now I can do that, in the NVIDIA control panel doesn't have any option to disable SLi. I only one monitor and how can I extend the desktop to the second GPU? If you don't mind tellin me. Soryy for this bunch of question but I'm rather new to NVIDIA, been ATI's guy for several years ;-). |
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Send message Joined: 1 Sep 08 Posts: 37 Credit: 5,864,088 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]()
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Ahh I'm not sure now I can do that, in the NVIDIA control panel doesn't have any option to disable SLi. I only one monitor and how can I extend the desktop to the second GPU? If you don't mind tellin me. I use Vista 64Bit with 182.08. With older driver I had a BSOD in the single GPU mode. I turn PhysX on - and activate the not-multi-GPU-mode. SLI is the Multi-GPU-Mode <- this must be disabled! Perhaps its a problem between Win7 and the driver... Kind regards Joe |
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Send message Joined: 27 Jul 08 Posts: 1 Credit: 5,009,518 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]()
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"Ahh I'm not sure now I can do that, in the NVIDIA control panel doesn't have any option to disable SLi. I only one monitor and how can I extend the desktop to the second GPU? If you don't mind tellin me." Normally you can disable SLI in BIOS settings when you reboot. |
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Send message Joined: 24 Feb 09 Posts: 14 Credit: 107,808,533 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]()
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"Ahh I'm not sure now I can do that, in the NVIDIA control panel doesn't have any option to disable SLi. I only one monitor and how can I extend the desktop to the second GPU? If you don't mind tellin me." I did try to look in the BIOS but couldn't find anything. My motherboard use Intel X38 chipset not the NVIDIA one, don't think I can set anything in relation to the NVIDIA GPU in the BIOS. Tried to work around but end up in either the blue screen errors or computation errors. I actually add another card to my computer, 8600GTS which is not the good one but at least it's CUDA enabled. Still no luck, can run only one WU at a time instead of three and is extremely unstable. Can easily get computation error with two cards enabled. Or maybe my settings were improper. |
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Send message Joined: 17 Aug 08 Posts: 2705 Credit: 1,311,122,549 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
The SLI controls have to be in the driver and may be in the BIOS. The NV driver offers so few options, I'd imagine it's hard not to find the option there? MrS Scanning for our furry friends since Jan 2002 |
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Send message Joined: 24 Feb 09 Posts: 14 Credit: 107,808,533 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]()
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The SLI controls have to be in the driver and may be in the BIOS. The NV driver offers so few options, I'd imagine it's hard not to find the option there? If it's the same as disable multi-GPU mode? I tried that option but always end up in the blue screen error and/or computation error result on BOINC. |
Paul D. BuckSend message Joined: 9 Jun 08 Posts: 1050 Credit: 37,321,185 RAC: 0 Level ![]() Scientific publications ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
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On my GTX 295 cards I get blue screen when I use the Nvidia control panel. When I installed the drivers on the two cards it took four cycles to install all the drivers ... but, I cannot use the control panel. Check to see if the cards have the drivers installed by only using the windows right click menu. If one card does not have the driver installed for the second core, it will not be seen. |
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