Forum > GPU crunching
[Split] PowerSpectrum Unit Test
PatrickV2:
--- Quote from: Jason G on 20 Nov 2010, 07:52:23 am ---
--- Quote from: PatrickV2 on 20 Nov 2010, 07:27:55 am ---EDIT: I still have WinXP32 installed on another HD of this machine; are you interested in a run of your tool under that OS?
--- End quote ---
Yes please. The difference picked up earlier (Thanks Frizz) between XP32 & XP64 was interesting ( with stock, around 10% advantage to XP32, reduced to ~5% with Mod3 ) . I've little doubt XP32 has a similar advantage over Win7x64, due to the simpler driver model, but it'd be nice to confirm if the mods close that gap a bit too.
--- End quote ---
Sure, no problem. The results:
WinXP32-SP3/8GB/8800GTX/260.99 drivers:
Device: GeForce 8800 GTX, 1350 MHz clock, 768 MB memory.
Compute capability 1.0
Compiled with CUDA 3020.
PowerSpectrum Unit Test #4
Stock GetPowerSpectrum():
64 threads: 18.3 GFlops 7.3 GB/s 1183.3ulps
GetPowerSpectrum() mod 1: (made Fermi & Pre-Fermi match in accuracy.)
32 threads: 14.1 GFlops 5.6 GB/s 121.7ulps
64 threads: 18.2 GFlops 7.3 GB/s 121.7ulps
128 threads: 18.2 GFlops 7.3 GB/s 121.7ulps
256 threads: 17.9 GFlops 7.2 GB/s 121.7ulps
GetPowerSpectrum() mod 2 (fixed, but slow):
32 threads: 2.9 GFlops 1.2 GB/s 1183.3ulps
64 threads: 2.9 GFlops 1.2 GB/s 1183.3ulps
128 threads: 2.9 GFlops 1.2 GB/s 1183.3ulps
256 threads: 2.9 GFlops 1.2 GB/s 1183.3ulps
GetPowerSpectrum() mod 3: (As with mod1, +threads & split loads)
32 threads: 14.7 GFlops 5.9 GB/s 121.7ulps
64 threads: 18.3 GFlops 7.3 GB/s 121.7ulps
128 threads: 18.2 GFlops 7.3 GB/s 121.7ulps
256 threads: 18.0 GFlops 7.2 GB/s 121.7ulps
512 threads: 16.4 GFlops 6.6 GB/s 121.7ulps
1024 threads: N/A
Regards, Patrick.
SciManStev:
What I did was to copy the folder with the dll and executable into the root (C:) directory. Stop crunching. Go to the command line, and get yourself into the directory where the two files are. Run the PowerSpectrum4 file, and then hand type the results shown in the command window into notepad. From there they can be coppied and posted here. There is probally an easier way to do it, but you will get results. I think you need to be using at least the 260.89 GPU driver.
Steve
PatrickV2:
--- Quote from: SciManStev on 20 Nov 2010, 11:38:02 am ---What I did was to copy the folder with the dll and executable into the root (C:) directory. Stop crunching. Go to the command line, and get yourself into the directory where the two files are. Run the PowerSpectrum4 file, and then hand type the results shown in the command window into notepad. From there they can be coppied and posted here. There is probally an easier way to do it, but you will get results. I think you need to be using at least the 260.89 GPU driver.
Steve
--- End quote ---
Whoa, you can copy and paste from a CMD window. :o Right click in the title bar and you will be enlightened. Saves you a LOT of typing!
Regards,
Patrick.
Richard Haselgrove:
--- Quote from: SciManStev on 20 Nov 2010, 11:38:02 am ---What I did was to copy the folder with the dll and executable into the root (C:) directory. Stop crunching. Go to the command line, and get yourself into the directory where the two files are. Run the PowerSpectrum4 file, and then hand type the results shown in the command window into notepad. From there they can be coppied and posted here. There is probally an easier way to do it, but you will get results. I think you need to be using at least the 260.89 GPU driver.
Steve
--- End quote ---
Even easier: use a redirect.
PowerSpectrum4 > results.txt
Always avoid rekeying as much as you possibly can. Apart from the time wasted, it's a prolific source of errors.
SciManStev:
--- Quote from: PatrickV2 on 20 Nov 2010, 11:45:11 am ---
--- Quote from: SciManStev on 20 Nov 2010, 11:38:02 am ---What I did was to copy the folder with the dll and executable into the root (C:) directory. Stop crunching. Go to the command line, and get yourself into the directory where the two files are. Run the PowerSpectrum4 file, and then hand type the results shown in the command window into notepad. From there they can be coppied and posted here. There is probally an easier way to do it, but you will get results. I think you need to be using at least the 260.89 GPU driver.
Steve
--- End quote ---
Whoa, you can copy and paste from a CMD window. :o Right click in the title bar and you will be enlightened. Saves you a LOT of typing!
Regards,
Patrick.
--- End quote ---
Thank you! I was stumbling myself trying to figure out how to do it. I actually had to toss the cat out because he kept climbing on me while I was trying to type. My DOS is not as good as it once was. It was even trial and error just to get to the right directory.
Steve
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