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Poem@Home Gpu support! - Page 31

post #301 of 396
Sorta what I figured. Thanks
     
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post #302 of 396
Quote:
Originally Posted by Bal3Wolf View Post

typicaly whats stable for boinc is not game stable they use differt parts of the gpu.
not in my case, my cards max is 1260/1815, and stable on every game i have so far. 1220/1810 1.27v on mw3, bf3, cry2 etc and is stable for me on boinc.
    
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post #303 of 396
i tested 4-7 work units and 6 came out to give the most points.
Quote:
4 wu 16mins 1053082
5 wu 20mins 1053082
6 wu 23mins 1098869
7 wu 28mins 1053082

Edited by Bal3Wolf - 11/8/12 at 1:52am
post #304 of 396
Quote:
Originally Posted by Bal3Wolf View Post

i tested 4-7 work units and 6 came out to give the most points.
That's also been the case with my 6870, with .5 CPUs per work unit.
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post #305 of 396
My test concluded the same. 6 WUs seems like the sweet spot in terms of ppd. I think my rig pulls about 1,050,000 ppd at 1075, if I am not super active on the computer. This is about the same as Doc_Gonzos 7850. I wonder how that card pulls the same ppd??? Less shaders, same ROPs. Compute shouldn't be ROP limited, right?
     
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post #306 of 396
I was talking to Doc, I know he runs 7WUs at a time, for what its worth

Finally got my 670s running POEM again.. sucks you cannot run both cards at the same time on POEM with nvidia... the 670s do pretty good.. at stock clocks doing 4 WU at a time they finish in about 20min
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post #307 of 396
I also talked with him and I did not see anything to really point out why a 7850 would perform the same in ppd as a 7970 or 7950. All good, I am just really curious.
     
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post #308 of 396
I'm equally curious as to why my 7850 pulls as many points as the higher end cards thinking.gif. Maybe it mated with my 3570K and produced some kind of freaky hybrid monster biggrin.gif
 
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post #309 of 396
Well now that I have everything sorted my WUs seem to complete in ~22m17s, which is pretty awesome (think about it for a second).

Turns out that running the GPU at PCIe 2.0 x8 is significantly slower than 2.0 x16 for POEM. I think it is because POEM passes a lot of data between the CPU and GPU compared to other projects. I will try running DiRT and see if things are any faster at x16 compared to x8, but as DiRT doesnt load the CPU I can't see it making a difference.

My times are still slightly slower than what other people are seeing which makes me think that the CPU speed also has an effect on the completion times. After the BGB I will play round with OCing my CPU and see what difference, if any, it makes.
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post #310 of 396
CPU speed definitely has a lot to do with POEM times. I know this because on my AMD rig (hardware in my sig), I ran my CPU @ 3Ghz to run cooler and noticed like 5min additional time compared to when I ran it at 3.5 or 3.8!

Now I am not sure if it is the computing speed POEM requires of the CPU, or if the slower AMD chip is bottle-necking the data feed to the GPUs...
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