Questions and Answers : Preferences : I can't find parameters "Maximum tasks number" and "Maximum CPU Number" on "Universe@Home" project settings WWW page.
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Makina_01

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Message 5077 - Posted: 6 Feb 2022, 19:56:03 UTC

Hello Everyone

I neeed to control number of tasks and processors used by Universe@Home projct.
There are parameters "Maximum tasks number" and "Maximum CPU Number" on some projects parameters pages. For example LHC@home, on page https://lhcathome.cern.ch/lhcathome/prefs.php?subset=project.
On page for Universe@Home project https://universeathome.pl/universe/prefs.php?subset=project I can't fin such parameters.

So, I have two questions.
1. How to control maxumim number CPU and taska used by Universe@Home projct. ?
2. When I can find such parameters on https://universeathome.pl/universe/prefs.php?subset=project ?

Best Regards
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Profile Keith Myers
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Message 5119 - Posted: 17 Feb 2022, 21:22:10 UTC - in response to Message 5077.  

To control the number of cpu threads used, set that is the Manager >> Options >> Computing Preferences >> Computing and choose 50% to use half your threads for example. Or via the project website >> Computing Preferences >> Use at most xx% of the cpu's.

To control the amount of tasks you receive you need to change the amount of days of work received either via the Manager from the same page listed previously >> Store at least x amount of days of work

Or via the project website Computing Preferences >> Store at least x days of work.

I would recommend starting out with a small value like 0.2 days of work to see if your host can complete the work in time before bumping the value up to get more work stored in your cache.

A proud member of the OFA (Old Farts Association)
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Makina_01

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Message 5136 - Posted: 4 Mar 2022, 3:47:38 UTC

Thanks for your help, but I think there is a misunderstanding.
Your advice is good if you want to control the number of processors used by the entire BOINC, but the option I ask for allows you to control the number of processors used by the univers@home project running on boinc. I want to support some projects, among of them univeres@home, but not only universe@home. Now on my machine universe@home has priority 1, LHC@home has priority 9 999 999, and the processors on my machine are occupied by univers@home processes. Yes, I'm exaggerating, but there is something to it. I'm not sure but I think it's because lhc@home uses Oracle VM VirtualBox, univers@home doesn't.
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Corsair
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Message 5609 - Posted: 21 May 2022, 10:39:03 UTC
Last modified: 21 May 2022, 10:43:19 UTC

Hi,
I guess that you're asking about this:

create file: app_config.xml either create a file app_config.txt do all procedure below and when you'll finish rename as .xml

in folder:
X:\ProgramData\BOINC\projects\universeathome.pl_universe
where X is the drive where BOINC storage is placed

now with text editor (Notepad either Notepad++)
insert these lines

<app_config>
<app>
<name>BHspin2</name>
<max_concurrent>A</max_concurrent>
<gpu_gpu_usage>0.000000</gpu_gpu_usage>
<gpu_cpu_usage>0.000000</gpu_cpu_usage>
<fraction_done_exact>0</fraction_done_exact>
<report_results_immediately>0</report_results_immediately>
</app>
<project_max_concurrent>B</project_max_concurrent>
<report_results_immediately>0</report_results_immediately>
</app_config>

where A are the task for that app
and B are the total apps running for this project.
save & close the file.

Also in above section from:
<app>
..
</app>
you can repeat for another app in the same project.
one app for each section <app> .. </app>

and in BOINC click on something similar to "read app configuration file"
I'm saying something similar because long time that not using the BOINC Manger and instead I'm using BOINCTasks to control all my computers.

if you don't find similar option in BOINC just restart the Boinc Manager.

that's it
Corsair,

Roses don't bloom on the sailor's grave

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Questions and Answers : Preferences : I can't find parameters "Maximum tasks number" and "Maximum CPU Number" on "Universe@Home" project settings WWW page.




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