More than two WUs in the same time

Questions and Answers : Preferences : More than two WUs in the same time
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Viktor

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Message 38894 - Posted: 21 Oct 2004, 20:44:04 UTC

How I can force BOINC to process all downloaded WUs in the same time, not only two of them?
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Pascal, K G
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Message 38941 - Posted: 21 Oct 2004, 23:00:30 UTC

You can not.
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So long Paul, it has been a hell of a ride.

Park your ego's, fire up the computers, Science YES, Credits No.
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Profile joe
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Message 39175 - Posted: 22 Oct 2004, 15:38:01 UTC

Add more CPUs ;-)

It actually would not make sense to process more than one BOINC client tasks on one CPU (or one virtual CPU on HT systems), they would be slower than handling them one by one.
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jphelan
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Message 53391 - Posted: 13 Dec 2004, 4:15:11 UTC - in response to Message 38941.  

> You can not.
>
Well, you can, sort of; but it's a bad/very wasteful idea. What you do is that you take your "URL Project" and put it into, "Attach to Project" along with your account project ID#. Here's why it's a bad ideal. You will see to WU in BOINC crunching away...., but never at the same time. While BOINC is working on one WU, the other WU is "Paused" for a certain amount of time, then it takes time to stop work on the one WU and resume the other WU that was paused. If you look at the finished time it took to complete each work unit, the time indicated that it to complete is NOT real, because it does not take into account time-paused, time-stop-to-swith back and forth between WU. The end result may be that it actually, on average, take longer to complete WUs and return for new ones.
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keputnam
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Message 53612 - Posted: 13 Dec 2004, 19:39:25 UTC - in response to Message 53391.  
Last modified: 13 Dec 2004, 19:39:43 UTC

> > You can not.
> >
> Well, you can, sort of; but it's a bad/very wasteful idea. What you do is
> that you take your "URL Project" and put it into, "Attach to Project" along
> with your account project ID#. Here's why it's a bad ideal. You will see to
> WU in BOINC crunching away...., but never at the same time. While BOINC is
> working on one WU, the other WU is "Paused" for a certain amount of time, then
> it takes time to stop work on the one WU and resume the other WU that was
> paused. If you look at the finished time it took to complete each work unit,
> the time indicated that it to complete is NOT real, because it does not take
> into account time-paused, time-stop-to-swith back and forth between WU. The
> end result may be that it actually, on average, take longer to complete WUs
> and return for new ones.
>

This (the CPU counter keeps going when swapped out) is only true for Win9x based machines

NT/W2k/Xp all time slice quite nicely, and DO report actual amount of CPU time used.

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Questions and Answers : Preferences : More than two WUs in the same time


 
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