Low credit from PSH_ wokrunits...

Message boards : Number crunching : Low credit from PSH_ wokrunits...

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Mats Petersson

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Joined: 29 Sep 05
Posts: 225
Credit: 951,788
RAC: 0
Message 31899 - Posted: 1 Dec 2006, 13:46:28 UTC

I've received lower-than-usual credit for several work-units named PSH_nnnn... (where nnnn is a number, such as 0080 or 0121).

PSH workunits:
https://boinc.bakerlab.org/rosetta/workunit.php?wuid=43868507
https://boinc.bakerlab.org/rosetta/workunit.php?wuid=43793087


Non PSH work units on the same machine:
https://boinc.bakerlab.org/rosetta/workunit.php?wuid=43712893
https://boinc.bakerlab.org/rosetta/workunit.php?wuid=43639909

Another machine PSH work units:
https://boinc.bakerlab.org/rosetta/workunit.php?wuid=43981878
https://boinc.bakerlab.org/rosetta/workunit.php?wuid=43932643

Non PSH work units on this machine:
https://boinc.bakerlab.org/rosetta/workunit.php?wuid=43826140
https://boinc.bakerlab.org/rosetta/workunit.php?wuid=43700796

There's a factor 1.5 or so between the PSH and non-PSH work units in credit.

Is there a particular reason for this?

--
Mats

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tng*

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Posts: 14
Credit: 5,389,798
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Message 31935 - Posted: 2 Dec 2006, 11:50:34 UTC

This is being carried to the point of being absurd on one of my machines.This workunit was granted only 4 credits for a claimed 120 (31k CPU secs on an X2 4800+; this machine is usually granted slightly more than it claims).

This PSH workunit run on a Xeon 5150 doesn't get such an absurdly low credit, although it is lower than other workunits run on that machine.

Any ideas what is going on?
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Profile dcdc

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Posts: 1831
Credit: 119,627,225
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Message 31936 - Posted: 2 Dec 2006, 12:49:44 UTC

is this not the same as previously which appeared to be due to an abnormally high number of failed WUs, which I believe are still included in the averaging, and therefore drag the average down toward 0?
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Nothing But Idle Time

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Posts: 209
Credit: 139,545
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Message 31937 - Posted: 2 Dec 2006, 13:05:34 UTC - in response to Message 31935.  
Last modified: 2 Dec 2006, 13:13:24 UTC

..This workunit was granted only 4 credits for a claimed 120...
What is the relationship of granted credit to the number of decoys produced? This workunit produced 7 decoys for which you should get more than 4 credits but not 120(?) edit: One of my PSH tasks produced 92 decoys after running 28k seconds and was granted 53 points. The ratio of 92/53 is roughly the same as 7/4. But how this ratio compares to non-PSH tasks I didn't check.
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Message boards : Number crunching : Low credit from PSH_ wokrunits...



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