FiND tasks ignore the CPU usage setting
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Questions and Answers : Preferences : FiND tasks ignore the CPU usage setting

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Keithse
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Message 1718 - Posted: 13 Jan 2015, 19:42:30 UTC

Hi,

I have many BOINC projects running and have been for years, all of these are set by the general BOINC computing preferences to "Use at most 33% of CPU time".

All other projects conform to this setting and you can see the 4-cores varying in use as it averages it out to 33% overall.

However FiND tasks always use 100% of CPU time, and when 4 tasks are running then all 4 cores are constantly at 100% and getting hot.

This does only seem to be an issue with FIND - other projects I run (Seti, World Community Grid, Poem, Lattice, Enigma, Cosmology, malriacontrol, climateprediction, rosetta, LHC, eon2, boinsimap and MindModelling) do not display this behaviour and limit their CPU use as instructed.

Can anyone help?

Thanks,

Keith (Win7 64bit, 4-core Q8200@2.33GHz, 8GB RAM)

Keithse
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Message 1720 - Posted: 13 Jan 2015, 22:30:36 UTC - in response to Message 1718.

In fact they don't even "suspend" when I tell BOINC to snooze!

I've just done that and the two FiND tasks I have running are still using their cores at maximum - the other two projects are at 0% on their cores.

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Message 1768 - Posted: 15 Jan 2015, 22:27:47 UTC - in response to Message 1720.

I just discovered the Q&A section -_-

I put that on the forum. It can answer to your question.

"Vina is a blackbox, I mean for me, but it's working very well.

Somebody can make a CUDA version, or I can put checkpoints or throttle the application, precisely compute credits. It will end up with a heavy modified version. But if we do that, we need to test the application, and we need to scientifically prove that the output is CORRECT. It could take month. And of course, we will need to publish the "version 2" in a journal.
That basically why we can't make some improvement. That and the fact that I'm not a software engineer XD"

That means, you can't juste "pause" Vina, because it's not implemented.

Keithse
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Message 1788 - Posted: 16 Jan 2015, 22:55:26 UTC - in response to Message 1768.

OK Ben, thanks for the info.

Shame that it works that way, but I understand.

Keith

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Message 1789 - Posted: 16 Jan 2015, 23:15:32 UTC - in response to Message 1788.

I would like to be able to create a new BOINC-oriented version of Vina but it's too much work.

Jacob Klein
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Message 1960 - Posted: 18 Feb 2015, 16:59:44 UTC - in response to Message 1768.

That means, you can't juste "pause" Vina, because it's not implemented.


This is a problem. If the user chooses to suspend BOINC, then all tasks must stop running, even if it means they will lose their progress or result in error.

Suspend means suspend.
Snooze means snooze.

Your application has a bug where it is not respecting that user setting.
The process needs to terminate itself, when told to suspend or snooze.
Please fix your application.

If you need assistance resolving the issue, please post to the BOINC Projects or BOINC Dev list, to get help.

Thanks,
Jacob Klein

Dmitry_Radaev
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Message 2155 - Posted: 24 Mar 2015, 17:21:58 UTC
Last modified: 24 Mar 2015, 17:23:36 UTC

Hello. I have the same problem. Win7 64bit, BOINC 7.4.36, iMac 12,1 2.7 Ghz (Core i5 2500S). I just hastily threw a task because the computer overheated. Other projects are working without problems.

Questions and Answers : Preferences : FiND tasks ignore the CPU usage setting


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