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Message boards : Graphics cards (GPUs) : GPU Load only about 43%

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Message 16274 - Posted: 13 Apr 2010 | 11:16:09 UTC
Last modified: 13 Apr 2010 | 11:16:24 UTC

Hi!

Why is the GPU Load only about 43% when running ACEMD - GPU molecular dynamics 6.03 (cuda)?

http://img222.imageshack.us/i/cudatoimii17.png/

The GPU card is ASUS GTX 275 PCI Express 2.0 x16. My motherboard only has a PCI Express 1.x x16 slot. The CPU is a dual-core Pentium D 920. Is my PC a bottleneck or is it normal to not have a 100% GPU load when running ACEMD?
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Message 16275 - Posted: 13 Apr 2010 | 11:28:12 UTC - in response to Message 16274.

Go into nVidia control panel
3d settings global and set power management from adaptive to prefer maximum performance.


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Message 16281 - Posted: 13 Apr 2010 | 13:39:14 UTC - in response to Message 16274.

Why is the GPU Load only about 43% when running ACEMD - GPU molecular dynamics 6.03 (cuda)?


Don't put too much faith in "GPU Load" measurements of this sort for GPUGRID - the quantity measured is only a reliable estimate of GPU use by graphics, not by a CUDA program.

MJH

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Message boards : Graphics cards (GPUs) : GPU Load only about 43%

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