Running dual graphics cards


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Questions and Answers : GPU applications : Running dual graphics cards

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Jesse
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Message 1325977 - Posted: 9 Jan 2013, 7:12:46 UTC

maybe this is a silly question but im new to this and had to ask. im running dual nvidia graphics cards that are SLI'd. when i look at my tasks it says its only using one nvidia gpu and under my account info its only listing the one 1gb card when im running 2 1gb cards. my actual question is it actually using both and not reporting it or if it isn't there a way i can make it use both so i can crunch faster?

Profile BilBg
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Message 1325981 - Posted: 9 Jan 2013, 7:22:35 UTC - in response to Message 1325977.
Last modified: 9 Jan 2013, 7:29:46 UTC

my actual question is it actually using both ...

Check the GPU load and temperature for both GPUs with some tool

http://rh-software.com/
http://www.techpowerup.com/gpuz/
http://www.ozone3d.net/gpu_caps_viewer/

http://event.msi.com/vga/afterburner/download.htm
http://www.almico.com/speedfan.php


The app itself is detecting both:
http://setiathome.berkeley.edu/result.php?resultid=2786484181

setiathome_CUDA: Found 2 CUDA device(s): Device 1 : GeForce GTX 560 Ti totalGlobalMem = 1073414144 sharedMemPerBlock = 49152 regsPerBlock = 32768 warpSize = 32 memPitch = 2147483647 maxThreadsPerBlock = 1024 clockRate = 1800000 totalConstMem = 65536 major = 2 minor = 1 textureAlignment = 512 deviceOverlap = 1 multiProcessorCount = 8 Device 2 : GeForce GTX 560 Ti totalGlobalMem = 1073545216 sharedMemPerBlock = 49152 regsPerBlock = 32768 warpSize = 32 memPitch = 2147483647 maxThreadsPerBlock = 1024 clockRate = 1800000 totalConstMem = 65536 major = 2 minor = 1 textureAlignment = 512 deviceOverlap = 1 multiProcessorCount = 8 setiathome_CUDA: CUDA Device 1 specified, checking... Device 1: GeForce GTX 560 Ti is okay SETI@home using CUDA accelerated device GeForce GTX 560 Ti


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Jesse
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Message 1325984 - Posted: 9 Jan 2013, 7:31:36 UTC - in response to Message 1325981.

i installed techpowerup gpuz and while i was crunching its saying only one of my cards has a load on it. is there a way to make them share or do i just not have my cards running right?

Jesse
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Message 1325986 - Posted: 9 Jan 2013, 7:38:28 UTC - in response to Message 1325984.

after looking at the gpuz a little closer i noticed that i appearently was tired when finishing the setup on my desktop cause i nver enabled SLI on the graphics cards lol.

Jesse
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Message 1325987 - Posted: 9 Jan 2013, 7:39:13 UTC - in response to Message 1325981.

thanks for the quick response and info. greatly appreciate it.

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Message 1325989 - Posted: 9 Jan 2013, 7:46:19 UTC - in response to Message 1325987.


Try also SIV (the first link) - it shows much more info


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Questions and Answers : GPU applications : Running dual graphics cards

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