Is scheduler mixed up?

Message boards : Number crunching : Is scheduler mixed up?

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Mark Lybeck

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Message 1304800 - Posted: 11 Nov 2012, 7:36:06 UTC

Hello,

I found the recent WU
http://setiathome.berkeley.edu/result.php?resultid=2705685571

According to seti the WU is a vlar that is currently being calculated with one of my hosts. Now, currently there is no CPU vlar WU uncalculated in my Task que. So what is going on?
There are several CPU tasks according to SETI, but I don't currently have them uncalculated or even unreported on my computer for that matter either.
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rob smithProject Donor
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Message 1304803 - Posted: 11 Nov 2012, 7:40:35 UTC - in response to Message 1304800.  

That WU is commonly referred to as a Ghost - S@H thinks it sent it to you, but for whatever reason it never arrived. There are a lot of them around just now, and the only thing you can do is wait for it to expire when it will go onto another cruncher.
Bob Smith
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Somewhere in the (un)known Universe?
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Josef W. Segur
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Message 1305073 - Posted: 11 Nov 2012, 21:09:50 UTC - in response to Message 1304800.  

Hello,

I found the recent WU
http://setiathome.berkeley.edu/result.php?resultid=2705685571

According to seti the WU is a vlar that is currently being calculated with one of my hosts. Now, currently there is no CPU vlar WU uncalculated in my Task que. So what is going on?
There are several CPU tasks according to SETI, but I don't currently have them uncalculated or even unreported on my computer for that matter either.

As Rob said, it's a ghost, and I guess many of the 4117 "In progress" tasks listed for that host are in the same state where the scheduler reply didn't get to your computer.

Being a VLAR, since the host has a 680 and a 670 what will almost certainly happen when the Scheduler gets to that point in the "lost" tasks is it will be expired (marked as missing deadline) at that time. That's because the Scheduler normally tries to fulfill the GPU work request first. OTOH, you could get lucky and have the host only asking for CPU at the right time. Whatever happens, I'm confident it will happen before the December 26 deadline now shown for the task.
                                                                  Joe
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Message boards : Number crunching : Is scheduler mixed up?


 
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