Message boards : ATLAS application : Can not get any LHC@home tasks
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Bogdan

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Message 32948 - Posted: 31 Oct 2017, 11:30:55 UTC
Last modified: 31 Oct 2017, 11:50:13 UTC

Hello,

I've been doing LHC@home tasks for the past 2 years.
Recently though I have been getting no tasks from the scheduler ( for any LHC projects.)

I'm currently running Rosetta tasks and seti tasks without problems.

I've tried to reset project and updated preference and settings but to no avail.(No project data was re-downloaded after project reset.

Could someone look into why am I not receiving tasks since there are 2000+ ready to send?

-Edit1-
Passed trough Yeti's checklist.
Checked all stuff except docker, which is disabled and Hyper-V is off.

Thank you!
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Harri Liljeroos
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Message 32949 - Posted: 31 Oct 2017, 13:12:22 UTC - in response to Message 32948.  

Your Windows machine has just finished two sixtrack tasks. They finished very fast (in about 6 seconds) but so did you wing mate who did those tasks too. So the tasks were just very short in nature and not a problem in your computer.

If you look at the server status page (link on left side of the page) you can see that there aren't any new sixtrack tasks available currently and even when there are any, they will be gone in a heartbeat, especially because some of the tasks are so short.
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Bogdan

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Message 32950 - Posted: 31 Oct 2017, 13:47:37 UTC

Yes, I saw that but still there are 1778 ATLAS Tasks ready to send and I am getting none.

I am subscribed to all task types.
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Jim1348

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Message 32951 - Posted: 31 Oct 2017, 14:42:12 UTC - in response to Message 32948.  

I've been doing LHC@home tasks for the past 2 years.
Recently though I have been getting no tasks from the scheduler ( for any LHC projects.)

I'm currently running Rosetta tasks and seti tasks without problems.

Did you just recently add Rosetta and SETI? In that case, the BOINC scheduler will prefer them until you reach the percentage specified in the "resource share" for each project. It can take several weeks to stabilize.

To speed that up to a day or two, I place the following cc_config.xml file in the BOINC Data folder:

<cc_config>
<options>
<rec_half_life_days>1.000000</rec_half_life_days>
</options>
</cc_config>

You can just create it as a text file in Notepad for example, but then use "save as" to save it as an ".xml" file (not as a text file).
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gyllic

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Message 32953 - Posted: 31 Oct 2017, 19:58:24 UTC - in response to Message 32948.  

if jim's advice doesnt change anything, please post your boinc logs here, maybe its easier to help then.

btw: your boinc client is connected to the new lhc@home site "https://lhcathome.cern.ch/lhcathome/" isnt it?
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Bogdan

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Message 32978 - Posted: 4 Nov 2017, 13:17:58 UTC - in response to Message 32948.  
Last modified: 4 Nov 2017, 13:24:11 UTC

04-Nov-17 3:15:46 PM | LHC@home | update requested by user
04-Nov-17 3:15:47 PM | LHC@home | Sending scheduler request: Requested by user.
04-Nov-17 3:15:47 PM | LHC@home | Requesting new tasks for CPU
04-Nov-17 3:15:48 PM | LHC@home | Scheduler request completed: got 0 new tasks
04-Nov-17 3:15:48 PM | LHC@home | No tasks sent
04-Nov-17 3:15:48 PM | LHC@home | No tasks are available for SixTrack
04-Nov-17 3:15:48 PM | LHC@home | No tasks are available for CMS Simulation
04-Nov-17 3:15:48 PM | LHC@home | No tasks are available for LHCb Simulation
04-Nov-17 3:15:48 PM | LHC@home | No tasks are available for Theory Simulation
04-Nov-17 3:15:48 PM | LHC@home | No tasks are available for ATLAS Simulation
04-Nov-17 3:15:48 PM | LHC@home | No tasks are available for ALICE Simulation
04-Nov-17 3:15:48 PM | LHC@home | No tasks are available for Benchmark Application
04-Nov-17 3:15:48 PM | LHC@home | Tasks for AMD/ATI GPU are available, but your preferences are set to not accept them
04-Nov-17 3:15:58 PM | LHC@home | Sending scheduler request: To fetch work.
04-Nov-17 3:15:58 PM | LHC@home | Requesting new tasks for CPU
04-Nov-17 3:16:00 PM | LHC@home | Scheduler request completed: got 0 new tasks
04-Nov-17 3:16:00 PM | LHC@home | No tasks sent
04-Nov-17 3:16:00 PM | LHC@home | No tasks are available for SixTrack
04-Nov-17 3:16:00 PM | LHC@home | No tasks are available for CMS Simulation
04-Nov-17 3:16:00 PM | LHC@home | No tasks are available for LHCb Simulation
04-Nov-17 3:16:00 PM | LHC@home | No tasks are available for Theory Simulation
04-Nov-17 3:16:00 PM | LHC@home | No tasks are available for ATLAS Simulation
04-Nov-17 3:16:00 PM | LHC@home | No tasks are available for ALICE Simulation
04-Nov-17 3:16:00 PM | LHC@home | No tasks are available for Benchmark Application
04-Nov-17 3:16:00 PM | LHC@home | Tasks for AMD/ATI GPU are available, but your preferences are set to not accept them

Log when I hit update.

Yes gyllic it connects to that URL.

Yes Jim I added those xml lines to the new file.

So far no improvements, and apparently only LHC tasks are affected by this.
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Bogdan

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Message 32982 - Posted: 4 Nov 2017, 14:43:06 UTC

Update

I was able to get tasks working on my linux laptop with the same boinc settings so I hope it will work good enough to get me to 50.000 credits.

It's weird what my windows machine does but it will get solved sometime too.
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maeax

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Message 32984 - Posted: 4 Nov 2017, 17:23:13 UTC

Bogdan,

take a look in Yeti's Checklist in the Atlas message folder.
This is very useful for the beginning with Atlas.
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Bogdan

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Message 32985 - Posted: 4 Nov 2017, 20:45:28 UTC - in response to Message 32984.  

God damn it works.

Did you try to crunch Projects using VMs in the past while VT-X / AMD-V / VIA-VT was not enabled? Could be that BOINC has kept this in mind!

To check and fix this, first exit BOINC and make sure, all BOINC-Tasks have really finished.

In your BOINC_Data-Directory you will find a client_state.xml. Open this with a simple editor and search for:

<p_vm_extensions_disabled>1</p_vm_extensions_disabled>

If this is absent or the number is 0 / zero than all is fine. Otherwise change it to 0 / zero <p_vm_extensions_disabled>0</p_vm_extensions_disabled> and safe the file. Be carefull to save it as a real ascii-file

Be carefull that you closed your BOINC-Client successfully before you change anything in client_state.xml. Otherwise BOINC will overwrite your changes.

But thing is this could have happened in the BIOS reset I did.
Interesting thing.

Thank you all for the ideas.
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Message boards : ATLAS application : Can not get any LHC@home tasks


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