running GPU without CPU

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Message 2011566 - Posted: 11 Sep 2019, 10:19:29 UTC
Last modified: 11 Sep 2019, 10:19:52 UTC

I have some new PCs but there are really noisy when crunching data even with only one CPU task running.
Is there a way to run only GPU tasks with no CPU running ?
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Message 2011572 - Posted: 11 Sep 2019, 11:47:02 UTC

Bonjour, bien sûr il suffit de désactiver le CPU dans les préférences de Seti@home https://setiathome.berkeley.edu/prefs.php?subset=project

décocher " utiliser le CPU "

puis dans Boinc Manager cliquer dans l'onglet Projets sur Seti@home et faire une mise a jour ;)
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Message 2011577 - Posted: 11 Sep 2019, 13:19:02 UTC - in response to Message 2011572.  
Last modified: 11 Sep 2019, 13:42:24 UTC

Thanks but it doesn't work
I put this snew computer in another group 'Work' (different from others computers).
Then I have edited 'Separate preferences for work' to untick 'CPU'
Last, I have updated project in boincmgr....but still using CPU tasks

I suppose it should be related to global_prefs.xml and global_prefs_override.xml file.
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Message 2011592 - Posted: 11 Sep 2019, 15:12:31 UTC

en effet Boinc ne téléchargera plus d'unité CPU mais finira celles en cours ;)

dans ce cas vous pouvez les annuler si besoin .
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Message 2011595 - Posted: 11 Sep 2019, 15:33:08 UTC

You should be able to configure the preferences to not use the cpu for tasks. If that is impossible you can always brute force it and run anonymous platform and simply remove the cpu apps.
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Message 2011596 - Posted: 11 Sep 2019, 15:38:07 UTC
Last modified: 11 Sep 2019, 15:38:48 UTC

My Asteroids@home tasks use a 0.01 CPU plus a NVIDIA GTX 1050 Ti with cuda 55. I don't know what would happen if I blocked the CPU usage.
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Message 2011597 - Posted: 11 Sep 2019, 15:44:58 UTC - in response to Message 2011577.  

Thanks but it doesn't work
I put this snew computer in another group 'Work' (different from others computers).
Then I have edited 'Separate preferences for work' to untick 'CPU'
Last, I have updated project in boincmgr....but still using CPU tasks


It may finish any current tasks but should not get any new ones. I've done this on a few machines and it works...
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Message 2011600 - Posted: 11 Sep 2019, 17:34:39 UTC

Thanks.
To be more precise, I would like to process CPU tasks only the night and no CPU tasks during the day.
So if the server doesn't send any more CPU tasks, it will not work as I would like.
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Message 2011609 - Posted: 11 Sep 2019, 18:52:15 UTC - in response to Message 2011600.  

Thanks.
To be more precise, I would like to process CPU tasks only the night and no CPU tasks during the day.
So if the server doesn't send any more CPU tasks, it will not work as I would like.



Maybe you could use BoincTask to do this.
This manager have Rules that could be used to suspend boincapps by the applevel on walltime.
Backdraw for you - its a Windows program - but it should work under Wine

https://forum.efmer.com/index.php?board=29.0

or you could use a sheduled dymmy program and use
<exclusive_app>filename.exe</exclusive_app>
BOINC will suspend computing whenever the executable is running (e.g., a game). Case is ignored in filenames. Multiple applications can be specified: place each <exclusive_app>filename.exe</exclusive_app> on a separate line.
<exclusive_gpu_app>important.exe</exclusive_gpu_app>
BOINC will suspend use of GPUs whenever the executable is running.
I am not an *nix person (yet)
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Message 2011614 - Posted: 11 Sep 2019, 19:27:14 UTC

Moving the CPU apps is a good idea ! It may generate a lots of error in boinc but it can solve my problem to suspend
CPU tasks during the day (you can suspend GPU tasks, but not CPU).
Thanks for your help !
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Message 2011711 - Posted: 12 Sep 2019, 10:06:20 UTC - in response to Message 2011609.  

Hi Lazydude2

Maybe you could use BoincTask to do this.
This manager have Rules that could be used to suspend boincapps by the applevel on walltime.
Backdraw for you - its a Windows program - but it should work under Wine

BOINCTasks does indeed run in Wine on Linux. I'm running it on Linux Mint 19.2.

Here's a forum post explaining how to install BOINCTasks in Wine on Linux. This is what I followed. :)

Have a great day! :)

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Message 2011754 - Posted: 12 Sep 2019, 20:20:27 UTC - in response to Message 2011614.  

Moving the CPU apps is a good idea ! It may generate a lots of error in boinc but it can solve my problem to suspend
CPU tasks during the day (you can suspend GPU tasks, but not CPU).
Thanks for your help !


Hmmm...in fact, not a good idea. If I rename the CPU app, boinc discard all CPU tasks .
When I put back the CPU app, all CPU tasks have disappeared.

I can't use BOINCTasks as the CPU use should be triggered by a script (off the day/on the night).

Answers found :
1) disable CPU task from the web interface....but it means no CPU tasks at all
2) leave only one CPU running with setting the right value in max_ncpus_pct (global_prefs_override.xml)

It seems there is no way to enable/disable all CPU tasks as you can do with GPU.
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Message 2011756 - Posted: 12 Sep 2019, 20:35:32 UTC - in response to Message 2011754.  

Moving the CPU apps is a good idea ! It may generate a lots of error in boinc but it can solve my problem to suspend
CPU tasks during the day (you can suspend GPU tasks, but not CPU).
Thanks for your help !


Hmmm...in fact, not a good idea. If I rename the CPU app, boinc discard all CPU tasks .
When I put back the CPU app, all CPU tasks have disappeared.

I can't use BOINCTasks as the CPU use should be triggered by a script (off the day/on the night).

Answers found :
1) disable CPU task from the web interface....but it means no CPU tasks at all
2) leave only one CPU running with setting the right value in max_ncpus_pct (global_prefs_override.xml)

It seems there is no way to enable/disable all CPU tasks as you can do with GPU.

Add that to a Issue at Github for BOINC with the "Feature Request" tag and hope for one of the developers to pick up the issue and run with it. This is one I put in a long time ago.
https://github.com/BOINC/boinc/issues/2085
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Message 2011759 - Posted: 12 Sep 2019, 21:29:52 UTC - in response to Message 2011756.  

Add that to a Issue at Github for BOINC with the "Feature Request" tag and hope for one of the developers to pick up the issue and run with it. This is one I put in a long time ago.
https://github.com/BOINC/boinc/issues/2085
Better yet, add it to https://github.com/BOINC/boinc/issues/41 - the second-oldest unimplemented open feature request in the whole repository (12 years and counting). Many other people have re-invented that particular wheel over the decades, but we're trying to consolidate on the mother lode.
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Message 2011760 - Posted: 12 Sep 2019, 21:38:08 UTC - in response to Message 2011756.  


Add that to a Issue at Github for BOINC with the "Feature Request" tag and hope for one of the developers to pick up the issue and run with it. This is one I put in a long time ago.
https://github.com/BOINC/boinc/issues/2085


New feature added but I don't think it will be available before boinc 7.20 ;)
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Message 2011763 - Posted: 12 Sep 2019, 21:42:11 UTC - in response to Message 2011759.  

Add that to a Issue at Github for BOINC with the "Feature Request" tag and hope for one of the developers to pick up the issue and run with it. This is one I put in a long time ago.
https://github.com/BOINC/boinc/issues/2085
Better yet, add it to https://github.com/BOINC/boinc/issues/41 - the second-oldest unimplemented open feature request in the whole repository (12 years and counting). Many other people have re-invented that particular wheel over the decades, but we're trying to consolidate on the mother lode.


sorry, I've added the feature request before you write your post !
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Message 2011771 - Posted: 12 Sep 2019, 22:02:51 UTC - in response to Message 2011763.  

sorry, I've added the feature request before you write your post !
That's OK, I've added cross-references to #41 and #2993. I've also (I think) demolished David's knee-jerk reaction.
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Message 2011774 - Posted: 12 Sep 2019, 22:05:49 UTC - in response to Message 2011771.  

sorry, I've added the feature request before you write your post !
That's OK, I've added cross-references to #41 and #2993. I've also (I think) demolished David's knee-jerk reaction.


:)
Different CPU profiles is a good idea !
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Message 2011776 - Posted: 12 Sep 2019, 22:07:56 UTC
Last modified: 12 Sep 2019, 22:25:14 UTC

An idea:
Use two app_config.xml
with <project_max_concurrent>X</project_max_concurrent>

X=number GPU-tasks

ie
Appconfig DAY X=1
Appconfig Night X=24

and with script change what appconf you want to use.
AND do a restart of boinc or --read_cc_config with https://boinc.berkeley.edu/wiki/Boinccmd_tool
My appconfig loos like this:
<!-- SETI -->

<app_config>
<app>
<name>setiathome_v8</name>

<gpu_versions>
<gpu_usage>0.5</gpu_usage>
<cpu_usage>0.05</cpu_usage>

</gpu_versions>

</app>

<app>
<name>astropulse_v7</name>

<gpu_versions>
<gpu_usage>1.0</gpu_usage>
<cpu_usage>1.0</cpu_usage>



</gpu_versions>
</app>

<!-- <project_max_concurrent>12</project_max_concurrent> -->

</app_config>
<!-- <report_results_immediately/> <project_max_concurrent>8</project_max_concurrent> <fraction_done_exact/> -->

Then you dont trash any WU
Also take a look att https://boinc.berkeley.edu/wiki/Client_configuration
Just an idea

Lazy
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Message 2011929 - Posted: 14 Sep 2019, 10:40:42 UTC - in response to Message 2011776.  
Last modified: 14 Sep 2019, 10:42:04 UTC

An idea:
Use two app_config.xml
with <project_max_concurrent>X</project_max_concurrent>
Lazy


Works great with <project_max_concurrent> !!! :)

Set to 1 to get the GPU running without CPU
Set to 4 to get the GPU running and 3 CPU tasks

All I need is to reload the app_config.xml file using :
./boinccmd --read_cc_config

One question : when I set value to 1, how boinc know it should be the GPU tasks which should remains running ?

PS: I've tried adding <max_concurrent> and restart boinc but it doesn't seems to work.

<app>
<name>setiathome_v8</name>
</app>
<file_info>
<name>MBv8_8.05r3345_avx_linux64</name>
<executable/>
</file_info>
<app_version>
<app_name>setiathome_v8</app_name>
<version_num>805</version_num>
<platform>x86_64-pc-linux-gnu</platform>
<cmdline></cmdline>
<max_concurrent>1<max_concurrent>
<file_ref>
<file_name>MBv8_8.05r3345_avx_linux64</file_name>
<main_program/>
</file_ref>
</app_version>
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