Work Unit processing time: drastic change

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Message boards : Cruncher's Corner : Work Unit processing time: drastic change

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Alex Vincent
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Message 44244 - Posted: 24 Jul 2006, 19:37:22 UTC

Up until about a week ago, it would usually take my build box about twenty-four hours to do a work unit (two units concurrently). Very recently that has changed to four hours, and the credit numbers per unit have plummeted.

What's going on?

Also, I'm running BOINC 4.19, which is apparently very far behind. Are there any special concerns I should have about upgrading and keeping my current account?
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Message 44246 - Posted: 24 Jul 2006, 19:46:18 UTC

4.19 needs to be uninstalled before the new version installed. Use the windows control panel, add/remove programs, and remove. DO NOT delete the folder. Install the new version over it.

As for the different sized units, there are 2 different sized units in Einstein, if the number after the 2 letters <=0400 it's a large unit, if >400 it is a small unit. You have no choice to which ones you receive. The server side does this, depending on several factors.

Hope this helps.

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Lt. Cmdr. Daze
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Message 44256 - Posted: 24 Jul 2006, 20:53:28 UTC - in response to Message 44246.


As for the different sized units, there are 2 different sized units in Einstein, if the number after the 2 letters <=0400 it's a large unit, if >400 it is a small unit. You have no choice to which ones you receive.

Actually, it's the other way around: large>400
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Message 44264 - Posted: 24 Jul 2006, 23:04:44 UTC - in response to Message 44256.
Last modified: 24 Jul 2006, 23:06:32 UTC

Actually, it's the other way around: large>400

Quoted from Dr. Allen:
There are two types of workunits: short and long. The short workunits have XXXX.X less than or equal to 0400.0.

There are also two types of data files: short and long. The short data files (l1_XXXX.X) are from the LIGO Livingston Observatory, and are about 4.5MB in size. The long data files (h1_XXXX.X) are from LIGO Hanford and are about 16MB in size. Note: once your computer downloads one of these data files, it should be able to do many workunits for that same file.


So I was partially wrong. Large > 400, small <= 400. I put the = in the wrong place.

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Message boards : Cruncher's Corner : Work Unit processing time: drastic change


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This material is based upon work supported by the National Science Foundation (NSF) under Grants PHY-1104902, PHY-1104617 and PHY-1105572 and by the Max Planck Gesellschaft (MPG). Any opinions, findings, and conclusions or recommendations expressed in this material are those of the investigators and do not necessarily reflect the views of the NSF or the MPG.

Copyright © 2016 Bruce Allen