Multiple CPU / Optimized Client / Granted credit

Message boards : Number crunching : Multiple CPU / Optimized Client / Granted credit
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Profile IZ3ATV
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Message 222776 - Posted: 29 Dec 2005, 14:00:09 UTC

Have someone realized how bad are scoring most of new multiple-cpu hosts and the hosts running third-parts "optimized client"?
Their credit are only fraction of those claimed by single cpu hosts and/or hosts running the original client.
Maybe it's good for Science, but their ranks in users statistics are going back!
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chrisjohnston
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Message 222784 - Posted: 29 Dec 2005, 14:30:05 UTC - in response to Message 222776.  

Have someone realized how bad are scoring most of new multiple-cpu hosts and the hosts running third-parts "optimized client"?
Their credit are only fraction of those claimed by single cpu hosts and/or hosts running the original client.
Maybe it's good for Science, but their ranks in users statistics are going back!


That is why you download a core client as well.
- cJ

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Profile Graeme of Boinc UK

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Message 222785 - Posted: 29 Dec 2005, 14:30:37 UTC

I found just the opposite after four weeks.
Less cpu cycles but more throughput of work.

Regards,
Graeme.

www.setiuk.com


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Profile Landroval

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Message 222800 - Posted: 29 Dec 2005, 15:22:42 UTC - in response to Message 222776.  

Have someone realized how bad are scoring most of new multiple-cpu hosts and the hosts running third-parts "optimized client"?
Their credit are only fraction of those claimed by single cpu hosts and/or hosts running the original client.
Maybe it's good for Science, but their ranks in users statistics are going back!

One possibility is to download an "optimized" core client as well; however, this will inflate your claims on ALL projects, not just SETI, and many people consider this at least borderline cheating.

Another workaround is to run a longer work queue, so the work you return is less likely to be part of the validation quorum and the credit claims based on the other units. (This is what I do on my Linux box that runs an optimized science app, and has a typical claim of 4.5 - 5.5 per WU.)

Finally, the _enhanced application uses an actual operations count rather than relying on the flawed benchmarks, so the problem may largely go away once that's in place. The enhanced application is supposed to be released Real Soon Now (tm). So it may be a temporary problem anyway.

Cheers,
Brian
If you think education is expensive, try ignorance.
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W-K 666 Project Donor
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Message 222805 - Posted: 29 Dec 2005, 15:49:56 UTC

It doesn't have to be a multi-cpu computer to claim low credits, those single core cpu's with large L2 cache also suffer same problem.
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Message boards : Number crunching : Multiple CPU / Optimized Client / Granted credit


 
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