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Milkyway@home N-Body Simulation, limit to just 1 thread and slow CPUs ?

Message boards : Number crunching : Milkyway@home N-Body Simulation, limit to just 1 thread and slow CPUs ?
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Profile Dirk Sadowski

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Message 69733 - Posted: 18 Apr 2020, 7:42:46 UTC
Last modified: 18 Apr 2020, 7:44:19 UTC

Hello :)

I have just a slow CPU :
Intel(R) Celeron(R) CPU J1900 @ 1.99GHz [Family 6 Model 55 Stepping 8]
(4 real Cores)

I would like to limit the N-Body Simulation app to just 1 CPU thread (with app_config.xml file).
I'm unsure if the WUs will finish during the 12 days deadline.

A Milkyway@home Separation WU lasts around 6 hours - for to compare.
Just crunching, no other things at the same time.

I work and play games during crunching, so the calculations time of the WUs increase...

Maybe you have also a slow CPU and you limit the N-Body Simulation app just to 1 thread?
I could limit the app to just 1 thread - what you think?

Thanks :)
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Profile mikey
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Message 69734 - Posted: 18 Apr 2020, 11:14:50 UTC - in response to Message 69733.  

Hello :)

I have just a slow CPU :
Intel(R) Celeron(R) CPU J1900 @ 1.99GHz [Family 6 Model 55 Stepping 8]
(4 real Cores)

I would like to limit the N-Body Simulation app to just 1 CPU thread (with app_config.xml file).
I'm unsure if the WUs will finish during the 12 days deadline.

A Milkyway@home Separation WU lasts around 6 hours - for to compare.
Just crunching, no other things at the same time.

I work and play games during crunching, so the calculations time of the WUs increase...

Maybe you have also a slow CPU and you limit the N-Body Simulation app just to 1 thread?
I could limit the app to just 1 thread - what you think?

Thanks :)


I don't run those at all but an app_config.xml file might fix it for you
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Profile Dirk Sadowski

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Posts: 101
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Message 69736 - Posted: 18 Apr 2020, 13:01:06 UTC
Last modified: 18 Apr 2020, 13:03:12 UTC

Yes, an app_config.xml file could do this... ;)

But I'm unsure if the/my slow CPU can finish N-Body Simulation WUs (they vary a lot) during the 12 days, just with 1 thread. ;)

I would like to know experiences from others which have similar slow CPUs - if it's possible to finish N-Body Simulation WUs before deadline with just 1 thread...

I wouldn't like to let it run just for test, it would be waste of CPU time if it won't finish before deadline... ;)

Thanks :)
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Message boards : Number crunching : Milkyway@home N-Body Simulation, limit to just 1 thread and slow CPUs ?

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