What the... - Shocked by Granted Credits...


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Profile [B^S] BOINC-SG
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Message 3292 - Posted 13 May 2007 10:40:44 UTC

After having finished my first dockings, I was shocked by the amount of Granted Credits. For a 4400 second wu, it claims appr. 20 credits (16 per hour), but grants 49.5 (40 per hour per core)...

Whats the reason for this?
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Profile Conan
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Message 3296 - Posted 13 May 2007 14:13:00 UTC - in response to Message ID 3292 .

After having finished my first dockings, I was shocked by the amount of Granted Credits. For a 4400 second wu, it claims appr. 20 credits (16 per hour), but grants 49.5 (40 per hour per core)...

Whats the reason for this?


One reason is that the Windows App has sped up (optimised) more (from 8500 sec to 5150 sec on my AMD 4800+) than when fixed credit was introduced (all WUs get 49.50 cobblestones no matter what you claim), it was originally close to what Einstein granted.

Some Linux and Mac versions of the App are having trouble and don't give the same Cr/h as Windows (my Opterons are down from 20+ to 6-10 now), so you have both extremes with the overall Project average much lower than you are getting.
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Message 3297 - Posted 13 May 2007 15:46:10 UTC

Thanx Conan for the info.

I'd like to see this fixed, though... I checked all my 30 projects and the average granted credit for my AMD X2 4800+ @ 2.85GHz is 16 credits per hour per core (700 per day per host).

Its a pity not all projects use the same credits system. Comparison of different projects is simply impossible :(
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Message 3299 - Posted 13 May 2007 19:43:48 UTC - in response to Message ID 3297 .

Conan is right. We were doing pretty well with fixed credit until our new app version was released which has seen an enormous (unexplained) speedup for windows machines. The linux and macs are way behind though so for them the 49.5 credits per wu is not too much. As soon as the boinc client benchmarks stabilize for all platforms we are probably going back to boinc-calculated credits again.

AK

Thanx Conan for the info.

I'd like to see this fixed, though... I checked all my 30 projects and the average granted credit for my AMD X2 4800+ @ 2.85GHz is 16 credits per hour per core (700 per day per host).

Its a pity not all projects use the same credits system. Comparison of different projects is simply impossible :(


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Message 3306 - Posted 14 May 2007 8:12:49 UTC

i think same credit for all WU when all Wu are the sam time is better. U need only optimize linux/mac app to get them time complete like windows.
Benchmarked calculated credit is not compare to real power of CPU.
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Message boards : Number crunching : What the... - Shocked by Granted Credits...

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