LHC@home

Hello,

i'm new at LHC@home, when i signed up, WU were downloaded and crunched, but no i get nothing anymore.

I refreshed and reset the project but it keeps saying:
20/09/2005 12:50:59|LHC@home|Requesting 0 seconds of work, returning 0 results

Can anyone help me ?

<blockquote>Hello,

i'm new at LHC@home, when i signed up, WU were downloaded and crunched, but no i get nothing anymore.

I refreshed and reset the project but it keeps saying:
20/09/2005 12:50:59|LHC@home|Requesting 0 seconds of work, returning 0 results

Can anyone help me ?</blockquote>

Can you post a larger section of your log file that might have more information?

Are you running other projects? If so, what is the resource share for each of them? What version of BOINC are you running?

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Gaspode the UnDressed
http://www.littlevale.co.uk

Ok, this is what is says:

20/09/2005 13:11:46|LHC@home|Sending scheduler request to http://lhcathome-sched1.cern.ch/scheduler/cgi
20/09/2005 13:11:46|LHC@home|Requesting 0 seconds of work, returning 0 results
20/09/2005 13:11:47|LHC@home|Scheduler request to http://lhcathome-sched1.cern.ch/scheduler/cgi succeeded
20/09/2005 13:22:06||request_reschedule_cpus: process exited

I'm using version 4.45
And i also have the seti project running, resource share is 100/100.

Got the same problem here.
I'm running Bonic 4.72. Cache size 3 days. LHC gets 80 %. Einstein 20 %.
I still have got 8 WU's for LHC and 4 for Einstein. Which should last me another 28 hours.

20-9-2005 12:49:28||Starting BOINC client version 4.72 for windows_intelx86
20-9-2005 12:49:28||Processor Inventory: 2 AuthenticAMD AMD Opteron(tm) Processor 244 Processor(s)
....
20-9-2005 12:49:28|LHC@home|Resuming computation for result wjun4A_v6s4hhpac_mqx__3__64.2544_59.2707__6_8__6__75_1_sixvf_boinc3028_4 using sixtrack version 4.67
20-9-2005 12:49:28|LHC@home|Resuming computation for result wjun4A_v6s4hhpac_mqx__2__64.2684_59.2847__6_8__6__85_1_sixvf_boinc2554_2 using sixtrack version 4.67
...
20-9-2005 12:54:39||request_reschedule_cpus: project op
20-9-2005 12:54:40|LHC@home|Sending scheduler request to http://lhcathome-sched1.cern.ch/scheduler/cgi
20-9-2005 12:54:40|LHC@home|Reason: Requested by user
20-9-2005 12:54:40|LHC@home|Requesting 0 seconds of work, returning 0 results
20-9-2005 12:54:41|LHC@home|Scheduler request to http://lhcathome-sched1.cern.ch/scheduler/cgi succeeded

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also there isn't any file anymore in the LHC project folder

First check that you allowed the project to get new works on task and have it enabled to access to network. Coz that's the only thing able to stop it from getting new work

To check: Bring up BONIV client click on the registered project and on the left side there "Task" and see if you have "Allow New Works".

Check wheather it connected to network: Right click on "B" icon on the taskbar. (Near the clock) Make sure "Disable BONIC Network Access" is not ticked.

@Storm
It's likely in your case that the calculation of work on hand (which is based on estimates provided by LHC) results in you being unable to complete any more WUs within the deadline, [b]as calculated by BOINC</B>. With BOINC 4.72 the estimates should adjust to more accurate values in time. In any case, you have 8 LHC WUs - why do you want more?

@spiritflyer
Check the Long Term Debt of each project. BOINCView (from http://boincview.amanheis.de ) displays it. If SETI has larger LTD than LHC then no LHC work will download until SETI has run for a while. BOINC can do odd things when you add a project, but it will sort itself out in time.

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Gaspode the UnDressed
http://www.littlevale.co.uk

tnx for the reply MikeW.

I didn't do anything, but LHC just downloaden 2 WU out of itself.
Don't know what was wrong, but it's working again.

You're right with it will sort itself out in time ;)

Grtz, Chris

@MikeW

Thanks for the reply
Indeed I switched to 4.72 not too long ago, BOINC calculation times already dropped 1 hour per WU. (it was even lower but some W5 units mess the calculation times up again). Even with the times as calculated by BOINC and my settings I should recieve some new WU's.
I keep my cache size at 3 days so I can keep crunching during the weekends.

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A request for 0 second of work means one of three things:

The computer has too much work on hand already to meet deadlines reliably.

The project has enough work on hand, and the computer is not desperate for work.

The project has used too much CPU time for its resource share recently and is blocked from requesting more for a while.

In all of these cases, the best thing to do is to leave it alone, and it will fetch more work when it is ready.
"JM7"

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<blockquote>The project has used too much CPU time for its resource share recently and is blocked from requesting more for a while.
"JM7"</blockquote>

Not sure I understand.
When I assign 80% to LCH, and 20% to Einstein, and suspend Einstein to keep crunching for LHC. The BOINC manager request 0 seconds of work for LHC because I don't meet the 20% mark for Einstein ?

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Still don't understand, but just got a fresh bunch of WU's.

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<blockquote>Not sure I understand.
When I assign 80% to LCH, and 20% to Einstein, and suspend Einstein to keep crunching for LHC. The BOINC manager request 0 seconds of work for LHC because I don't meet the 20% mark for Einstein ?</blockquote>

If you suspend E@H, BOINC should start DL'ing LHC workunits. It may take a minute or two.

One possible cause of requesting 0 seconds of work that Jim K missed is that you have 'No New Work' set.

Glad to hear things have sorted themselves out!

(j)
James

The Einstein result at 20% could block downloads from LHC at 80% under some circumstances. If the Einstein result is calculated as nearly unable to complete on time, then no new work will be downloaded from ANY project in order to allow the Einstein result to complete on time. The Einstein project will then give back the time by not downloading work for a while.

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BOINC WIKI

<blockquote>The Einstein result at 20% could block downloads from LHC at 80% under some circumstances. If the Einstein result is calculated as nearly unable to complete on time, then no new work will be downloaded from ANY project in order to allow the Einstein result to complete on time. The Einstein project will then give back the time by not downloading work for a while.</blockquote>

I think you misunderstood John. I read Storm's last post to be 80-20 as a resource share %, not an indication of any results' completion %. And if E@H is suspended, then BOINC should force a download from LHC.

Naturally, the best course of action is to wait till after you're out of work to get really antsy, but suspending one project should force a download from another...

<blockquote>The Einstein result at 20% could block downloads from LHC at 80% under some circumstances. If the Einstein result is calculated as nearly unable to complete on time, then no new work will be downloaded from ANY project in order to allow the Einstein result to complete on time. The Einstein project will then give back the time by not downloading work for a while.</blockquote>

Thanks, I'm cleaning out (crunching) those Einstein WU's.

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