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ATLAS vbox and native 3.01

1 month ago
https://lhcathome.cern.ch/lhcathome/result.php?resultid=406919512
[2024-02-25 11:16:18] 2024-02-25 10:16:04,707 | WARNING | format EVNTtoHITS has no such key: dbData
[2024-02-25 11:16:18] 2024-02-25 10:16:04,707 | WARNING | format EVNTtoHITS has no such key: dbTime
[2024-02-25 11:16:18] 2024-02-25 10:16:04,707 | WARNING | wrong length of table data, x=[1708855815.0, 1708855876.0], y=[1909.0, 253620.0] (must be same and length>=4)
[2024-02-25 11:16:18] 2024-02-25 10:16:04,708 | INFO | ..............................

Latest errors on tasks

1 month ago
In your tasks:
Command: VBoxManage -q closemedium "/var/lib/boinc/projects/lhcathome.cern.ch_lhcathome/Theory_2023_12_13.vdi" Output: VBoxManage: error: Cannot close medium '/var/lib/boinc/projects/lhcathome.cern.ch_lhcathome/Theory_2023_12_13.vdi' because it has 2 child mediaWhen it cannot close the medium, it will also not open it. The problem is not with BOINC, but VirtualBox.
You have to use VirtualBox Manager to solve your problem. See https://lhcathome.cern.ch/lhcathome/forum_thread.php?id=6112&postid=49574,

but instead of the CMS-vdi, remove Theory_2023_12_13.vdi, but don't delete the file itself.
That seems to have done it. When I looked in Tools/Media I found there were 2 orphaned Theory tasks listed under the .vdi file -- I assume those were the 2 child media the log referred to.
The Theory .vdi couldn't be removed from the VB manager until those were gone.
Thanks for the detailed reply. I would never have found this without it.

PYTHIA Warning in Pythia::check: not quite matched particle energy/momentum/mass

1 month 1 week ago
After >5 hours 100% CPU and running.log last lines:
0 events processed PYTHIA Warning in DireSpace::branch_IF: used up beam momentum; discard splitting. PYTHIA Info in DireTimes::pT2nextQCD_FF: Found large acceptance weight for Dire_fsr_qed_11->11&22_notPartial PYTHIA Info in DireTimes::pT2nextQCD_FF: Found large acceptance weight for Dire_fsr_qcd_21->1&1a PYTHIA Warning in DireTimes::branch_FI: used up beam momentum; discard splitting. PYTHIA Warning in Pythia::check: not quite matched particle energy/momentum/mass I aborted this job. Desciption: pp wy 13000 - - pythia8 8.303 dire-default
This was the second resend and the initial wingman let it run the entire 10 days without succes.
Workunit: https://lhcathome.cern.ch/lhcathome/workunit.php?wuid=219321083

VM Usage question

1 month 1 week ago
Theory task running complete, but the outputfile is not generated.
Don't know what the reason can be.

Could not get X509 credentials

1 month 2 weeks ago
Can this problem with getting a proxy credential from LHC be avoided by installing a local proxy server?
If so, how would one go about this in Linux?
In this case, the two meanings of the word "proxy" are quite different. The proxy credential is an authorisation to connect to the service; the (squid) proxy server is a caching server that saves requested files so that they don't need to be transported again if re-requested.

BOINC in schools

1 month 2 weeks ago
Registration is open for The Computation Moonshot, a competition for high schools which encourages students to learn about scientific computing.

jobs stats page

1 month 2 weeks ago
Thanks.

So, the link on the project website also needs to be changed back from mcplots.cern.ch to mcplots-dev.cern.ch

Menu: Jobs -> Theory Jobs

Website showing list with "bad" sherpa tasks

1 month 2 weeks ago
Although the task in question indeed might got stuck the "failed" list is not helpful to decide whether any task should be killed or not.

That's because 1 important fact has not been mentioned:
"Therefore no task of them was successful so far..."

Especially when a new mcplots revision starts there are always a couple of runspecs that fail or get lost before they report their first success.
To get removed from the "failed" list a runspec needs to report at least 1 successful result.

No monitoring with ALT-F2

1 month 2 weeks ago
Still not fixed.
I'll remind Laurence of this -- my current job does show output for all other Alt-Fn (n=1-6).. Also the running.log isn't being refreshed in the "show graphics" web page.

XBoinc

1 month 3 weeks ago
Never mind. Found: https://lhcathomedev.cern.ch/lhcathome-dev/forum_thread.php?id=4&postid=11#11

Virtualbox tasks failing on Linux

1 month 3 weeks ago
Seem to have sorted it, adding an override file didn't seem to work but after some searching here editing this file /etc/systemd/system/multi-user.target.wants/boinc-client.service and changing ProtectSystem=strict to full seems to have fixed it, ill keep an eye on outputs.

Tasks have started to fail on Windows again

1 month 3 weeks ago
I have reset the project and cleared out any old entry on Vbox and the units still instantly fail, honastatly with CMS and Theory failing on Linux for me and now this I am tempted to give up on the project :(

Example task https://lhcathome.cern.ch/lhcathome/result.php?resultid=405102137

Looks like the key points are :

VBoxManage.exe: error: Cannot close medium 'E:\Boinc\data\projects\lhcathome.cern.ch_lhcathome\CMS_2022_09_07_prod.vdi' because it has 1 child media VBoxManage.exe: error: Details: code VBOX_E_OBJECT_IN_USE (0x80bb000c), component MediumWrap, interface IMedium, callee IUnknown VBoxManage.exe: error: Context: "Close()" at line 1875 of file VBoxManageDisk.cpp 2024-02-03 13:35:46 (22644): Could not create VM 2024-02-03 13:35:46 (22644): ERROR: VM failed to start 2024-02-03 13:35:46 (22644): Powering off VM. 2024-02-03 13:35:46 (22644): Deregistering VM. (boinc_4b854b63c685b678, slot#67) 2024-02-03 13:35:46 (22644): Removing network bandwidth throttle group from VM. 2024-02-03 13:35:46 (22644): Removing VM from VirtualBox.[code] Checking the Vbox Gui shows nothing, not tasks there at all.[/quote]