Forum > GPU crunching
Modified SETI MB CUDA + opt AP package for full GPU utilization
Raistmer:
--- Quote from: Maik on 14 Jan 2009, 10:11:50 am ---Everytime a task gets stuck and my script notice that it will do a copy ;)
I've a bunch of them now ^^
Omgh , could someone attach stock app 6.0.7 please.
Ive a full cache ...
--- End quote ---
Here:
http://setiathome.berkeley.edu/beta/forum_thread.php?id=1508&nowrap=true#36436
Richard Haselgrove:
--- Quote from: Haselgrove on 14 Jan 2009, 05:45:38 am ---
--- Quote from: Josef W. Segur on 13 Jan 2009, 06:21:25 pm ---From a comment somewhere in the BOINC sources, his board is a Quadro FX 3700.
Joe
--- End quote ---
That card has the same number of shaders (112) as my 9800GT (but costs six times as much - hehe).
I can't find a clock speed for it - but if I plug the shader clock for the 9800GT (1500 MHz) into the formula, I get 48 GFLOPS: seems like the right ballpark.
If they're going to set the limit 25% above a 9800GT, then GPU crunching is dead until the next generation of hardware.
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I've been discussing CUDA-Z performance measurement off-line with Maik. Here is my card's report - it seems to be (still - just re-tested) just fast enough to pass SETI Beta's - and hence David Anderson's - presumed speed test: I get Beta v6.07 allocated automatically.
[attachment deleted by admin]
Jason G:
I think you're looking at Integer arithmetic. Take a look at single precision, which is what we use for the majority of computation. (You've got a little headroom)
Raistmer:
I like device to device memory copy speed, really :)
Richard Haselgrove:
--- Quote from: Jason G on 14 Jan 2009, 10:59:36 am ---I think you're looking at Integer arithmetic. Take a look at single precision, which is what we use for the majority of computation. (You've got a little headroom)
--- End quote ---
Yet Raistmer's 9600GSO was too slow. I was hoping a few ective users could post comparisons (maybe just the floats, not the whole graphic), and whether they can get work from Beta, so we could work out where the cutoff came. People are already asking questions on the SETI Main board.
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