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Report on new optimized Astropulse apps for Windows
Richard Haselgrove:
--- Quote from: Haselgrove on 23 Nov 2008, 08:18:17 am ---I'm slightly surprised by the blanking report at the start of the result file analysis: <percent_blanked> -18.750000 for the 'jewel', and <percent_blanked> -21.785156 for the other.
--- End quote ---
--- Quote from: Raistmer on 23 Nov 2008, 08:37:51 am ---So, Joe's % estimate and Josh's differ... Interesting, how much % will be in our current totally-blanked run....
--- End quote ---
Probably not - since a negative percentage doesn't make much sense, I'm reading that as (100-18.750000) or 81.25%, which is perfectly in line with Joe's "roughly 81%".
But the equivalent calculation for the other WU suggests <percent_blanked> 78.214844 - which is odd, since there are far fewer blanking indices (787) in that file.
Jason G:
probably a misplaced division of integer components with the typecasts in the wrong place. That should definitely be in the range 0.0-->1.0 looking at the code (so proportion rather than percentage). The value is likely a fluke that it bears any apparent relationship IMO.
Leaps-from-Shadows:
First Astropulse work unit crunched with v5.00 optimized app completed on Main. Task details.
Credits (759.31) divided by CPU seconds (92202.00) = 0.008235288 credits per CPU second.
Compare to other work units:
Shorty Multibeam - AK_v8_win_SSE3 app - Credits (16.84) divided by CPU seconds (2264.34) = 0.007037046 credits per CPU second.
Average Multibeam - AK_v8_win_SSE3 app - Credits (44.12) divided by CPU seconds (5268.02) = 0.008375063 credits per CPU second.
This version finally seems to bring Astropulse and Multibeam units into equality as far as credits per CPU second - at least on AMD processors. Woohoo!
Jason G:
Good for the AMD chips then. Keep an eye on the wingman for that task though, looks like a machine that might be having some issues. If not fixed, best hope might be that they error out quickly for reissue to a new wingman, otherwise could be waiting awhile for validation.
Richard Haselgrove:
Attaching result files for my two blanking cases, as a courtesy to Joe's dialup.
Edit - it would be even more of a courtesy if I attached the zipped files!
[attachment deleted by admin]
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