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Francois La Haye

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Message 1776848 - Posted: 7 Apr 2016, 14:21:43 UTC

Dear Seti people,

Is there a way to setup BOINC in order to have only a specific number of task running at any point in time???

I would like to run only 4 tasks and when one is over a new one would start.

THanks

Francois
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Message 1776850 - Posted: 7 Apr 2016, 14:31:55 UTC - in response to Message 1776848.  

What is your CPU? How many cores? If it can, do you run it with HyperThreading ON or OFF?
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Message 1776854 - Posted: 7 Apr 2016, 14:43:11 UTC - in response to Message 1776848.  
Last modified: 7 Apr 2016, 14:45:22 UTC

Dear Seti people,

Is there a way to setup BOINC in order to have only a specific number of task running at any point in time???

I would like to run only 4 tasks and when one is over a new one would start.

THanks

Francois

There are a few different ways.
First you can use the BOINC GUI and change the allowed CPUs that BOINC can use. So for your 32 CPU system 4/32=12.5%


Another option is to make a cc_config.xml and set <ncpus> to 4.

If you wanted to limit a specific project you could use an app_config.xml and set the value for <project_max_concurrent> to 4.
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Francois La Haye

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Message 1776863 - Posted: 7 Apr 2016, 15:14:59 UTC - in response to Message 1776854.  

ok, thanks guys, did not catch that 1 task = 1 proc.

In short, one task will never be able to be distributed on multiple-proc.



Francois
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Message 1776868 - Posted: 7 Apr 2016, 15:24:35 UTC - in response to Message 1776863.  

ok, thanks guys, did not catch that 1 task = 1 proc.

In short, one task will never be able to be distributed on multiple-proc.



Francois

Yes SETI@home does not currently have multithreaded applications. I believe it has been stated that the processing that SETI@home performs would not greatly benefit from being multithreaded.
However there are some BOINC projects that do offer multithreaded applications.
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Message boards : Number crunching : Number of tasks processing.


 
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