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KWSN Orbiting Fortress
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JumpinJohnny
Prince
Joined: 28 Mar 2013
Posts: 1247
Location: Western New Hamster
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 Posted: Thu Aug 22, 2013 4:52 pm Post subject: |
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| branjo wrote: |
Yes, I improved my daily output by app. 2 - 2.5K credits. But now I am not 100% sure if it is thanks to adding this line to those text files, or because I freed one CPU core for GPU tasks 
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It seems that you MUST have a CPU core free to shrub 2 GPU tasks at once or increase GPU % ... ???
I see this tidbit in the Lunatics read.me
| Quote: | Tuning cmd line parameters:
For AP: If you get lags or worse driver restarts, decrease unroll. If you run
stable you can try to increase it. ffa_block should be a multiple of ffa_block_fetch.
Start low e.g. -ffa_block 4096 -ffa_block_fetch 2048 and try increasing if it runs
fine. Sticking to the power of 2 line at first can help.
There will be a system specific best combination - too low slows you down, too high
slows you down as well.
Remember AP runtimes depend on blanking % so only compare runtimes on similar
blanking %.
For MB: other way round - if you experience lag or driver restarts increase
-period_iterations_num |
I don't have these 2 files>>?? ap_cmdline_6.06_windows_intelx86__opencl_ati.txt
mb_cmdline-7.03-opencl_ati_sah5.txt
The other two I DO have.
Here is further info on AP parameters I found.
| Quote: | High end cards (more than 12 compute units)
-unroll 12 -ffa_block 8192 -ffa_block_fetch 4096
Mid range cards (less than 12 compute units)
-unroll 10 -ffa_block 6144 -ffa_block_fetch 1536
entry level GPU (less than 6 compute units)
-unroll 4 -ffa_block 2048 -ffa_block_fetch 1024
Your mileage might vary. |
I still am not convinced I should try this with my crappy lil' 4870.
Since my numbers could not get much worse than today, I'm going to try to free up a CPU core to see what happens.
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Blurf
Prince
Joined: 03 Jan 2011
Posts: 1090
Location: Upstate NY
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| Posted: Wed Aug 28, 2013 12:51 am Post subject: |
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Correlizer has work again
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