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Optimized Seti@Home apps / Windows / Re: GPU crunching question
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on: 28 May 2007, 04:39:40 am
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2xOpteron 265s, 4GB RAM, Nvidia 7800GS AGP 512 MB RAM.
Ran for about 5 minutes, CPU usage: client about 75% of one core, csrss.exe about 20% of another core
I belive the csrss.exe is working at updating the CLI window output?!
Arnulf |
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Optimized Seti@Home apps / Windows / Re: New version of the KWSN Test & Benchmark Tool with Auto-Installer released
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on: 22 Nov 2006, 11:18:04 am
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Hi KarVi!
This is clipped from one of my results, and one thing that springs to mind is that I'm running the 5.5.0 app while you are running the .tx36 calibrating app - I don't know if that may be the cause?
As you can see below, the app. chooses various approaches for the different parts of the analysis.
I patched the Intel versions and the renamed them to replace the generic versions,
then I compared the different runs in the "KWSN - CPU Test & Benchmark Tool V2"
The generic SSE2 were the fastest on my system, in all of the three versions of the test.
But I will re-run the tests just to be sure an report back to you! 
Update!
Having re-run the tests with potentially changed clients I have to agree with you, the Intel is the fastest.
And I'm changing to the fastest one now. .... 
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Starting tests. This will take a few minutes, please be patient!
Testing setiathome-kwsn-ssse3-c2-v141.exe...does not work on your system!
Testing SaH_5.15_KWSN_SSE3_Ben-Joe_2.0_B.exe...ran for 624 seconds
Testing SaH_5.15_KWSN_SSE2-Intel_Ben-Joe_2.0_B.exe...ran for 606 seconds
Testing SaH_5.15_KWSN_SSE2-PM_Ben-Joe_2.0_B.exe...ran for 628 seconds
Testing SaH_5.15_KWSN_SSE2_generic_Ben-Joe_2.0_B.exe...ran for 630 seconds
Skipping other apps - SSE2 is quicker than SSE if supported.
Finished with test run!
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Arnulf
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<core_client_version>5.5.0</core_client_version>
<stderr_txt>
ChirpData--[ak's_sse3_chirp]: 10199721 (chosen)
GetPeak--[hand_opt]: 11601 (chosen)
f_sum--[hand_sse]: 37522 (chosen)
GetChiSq--[hoisted+abs(]: 40813 (chosen)
IPP FFT SSE2(64K)[original]: 4788086 (chosen)
Bench Time: 0.42 seconds
work_len=1048576
Optimized Windows SETI@Home Enhanced application
Optimizers: Ben Herndon, Josef Segur, Alex Kan, Simon Zadra
Version: Windows SSE2 32-bit based on seti V5.15 'Chicken Good!'
Rev: (R-2.0|QxB|FFT:IPP_SSE2|Ben-Joe|)
CPUID: 'AMD K8 Opteron DC 2 (Italy)'
cpus: 2 cores: 2 threads: 1 cache: L1=64K L2=1024K L3=0K
features: mmx 3Dnow 3Dnow+ sse sse2 sse3
speed: 1799 MHz -- read megs/sec: L1=9868, L2=4944, RAM=2325
Work Unit Info
True angle range: 0.624283
Spikes Pulses Triplets Gaussians Flops
1 1 2 0 12471831233146
</stderr_txt> |
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Optimized Seti@Home apps / Windows / Re: New version of the KWSN Test & Benchmark Tool with Auto-Installer released
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on: 21 Nov 2006, 01:52:09 am
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If someone were very enterprising...and curious about such things...
They could observe the 2.0 crunchers in action and note that the code checks for the specific presence of an Intel processor four times in each of the intel specific .exe files. The first 4 occurences of 'Genu' 'ineI' 'ntel' in the source code are solely to limit code to Intel only. Any following occurences are for my CPUID code when identifying CPU. Just for curiosity sake.
You might also notice that Simon neglected to compute an overall checksum over the entire EXE allowing naughty end users to potentially change the code and still have it run. Naughty Simon!
And if someone should try to run the potentially changed code on an Opteron 265 they would notice that the generic SSE2 client is faster than the potentially changed one. 
A. |
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