So I am newish to grid computing and even newer to GPUGrid. I have a machine dedicated 24/7 for this purpose. So my question is...when I first began GPUGrid my GTX470 ran at 100% GPU load (It's liquid cooled so temp isn't a factor) but recently it only runs at 25% to 65%. I tried setting my preferences to run only the Long Run projects but that didn't help either. What am I missing here?

Core i7 2600K
8Gigs 1333MHz Ram
EVGA GTX 470
Win 7x64

My sincerest apologies if this is posted in the wrong area.
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Do you hardly use your CPU parallel to gpugrid?
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DSKAG Austria Research Team: http://www.research.dskag.at

Funny...thing...I didn't change anything in my settings after I made my original post..but today, automagiically I got a task that utilizes the GPU at 100%.

I guess I was being selfish and was only thinking about my numbers...I am acutally quite pleased to be using my PC tinkering projects toward something useful. I expect to bring another two systems online in the next few weeks. Thank you for the replies.
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Hi,

I've kinda the same problem, and i don't know how i can to
Let me explain :


I have a 670GTX and my CPU is I7 920.

When i'm loooking to GPU load, i never see more than 80% of utilization when a cpu project working in the same time.
When i stop the spu project, the GPU load going around 87%

Can some one tell me why the GPU load is never at 100%

And how i dedicated more CPU power to the GPU ? (Instead of the 0.756 cpu y defautl)?

I see that app_config can be create but what should i write in it ?

<app_config>
<app>
<name>acemdlong</name>
<max_concurrent>1</max_concurrent>
<gpu_versions>
<gpu_usage>1</gpu_usage>
<cpu_usage>1</cpu_usage>
</gpu_versions>
</app>
</app_config>

Is that correct ?



Many thanks to the community :)

Thanks for ur answer, but i've already tried this tip, and if i let one core free with this option, this core won't be used by any BOINC application, and the GPU load will not changed at all.

I don't know why, but when i try to set one core free on project's preference, that don't work in the manager. Still 8 cores are used and then 80% of gpu load. :/

Can some one tell me why the GPU load is never at 100%

And how i dedicated more CPU power to the GPU ? (Instead of the 0.756 cpu y defautl)?

However, a simple way to get more CPU support is to turn off hyperthreading.

I advice against this: it's better to leave to HT on and restrict your BOINc to use 50% of all CPUs. This way Win will still scheduler all 4 BOINC tasks on the 4 physical cores. But if you want to use your PC for anything else while crunching you'll get better performance from the remaining 4 free (logical) cores. This is an oversimplification, but I think the idea is clear: you get better automatic load balancing.

MrS

Now the interesting question is: since the GPUGrid threads feeding the GPU need exclusive access to a logical core to service the GPU exactly when it needs support, but don't do any number crunching themselves, would they be slowed down by another BOINC thread running on the other logical core? Say you've got a Quad with HT and run 4 WCG + 2 GPUGrid instead of 2 WCG + 2 GPUGrid. Each WCG should be a bit slower in config 1, but overall throughput will almost double. And I suppose GPUGrid performance would hardly suffer.. but this would have to be measured properly.

MrS

GTX470 @ 700MHz, i7-2600K @ 4500MHz
I3R52-NATHAN_dhfr36_3-3-32-RND1460_1_9
0.19 CPU [acemd.2865P.exe]
0.04 ISR/DPC [dxgkrnl.sys + nvlddmkm.sys]

85% - this is normal?

85% - this is normal?

GTX470 @ 700MHz, i7-2600K @ 4500MHz