1) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 49977)
Posted 8 hours ago by Toby Broom
Post:
I belive you, my observation was different at the time, could be a transient from start to steady state.
2) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 49972)
Posted 21 hours ago by Toby Broom
Post:
@CP yes, I'm not sure why mine had 6 processes. 8 at 100% seems like it would need 8 cores? which is what I set to initally, Ivan seemed to say that 4 was good.

I additionally see that each WU allocates 30 GB of working set so I have to think about how to get the sceduler to be OK.
3) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 49970)
Posted 1 day ago by Toby Broom
Post:
OK, I lock it down to 4 cores and 4.5 GB of memory
4) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 49968)
Posted 1 day ago by Toby Broom
Post:
I see that one WU allocates 32 cores and then inside there is 6 processes cmsExternalGene using 1 core each.

What is the expected max number inside, as CP say seems like maybe 8?
5) Questions and Answers : Unix/Linux : theory simulation gets error at 14-minute mark (Message 49918)
Posted 10 days ago by Toby Broom
Post:
I built BOINC from source, these instructions are working, I made some comments that were updated in the documentation.

https://github.com/BOINC/boinc/wiki/BuildSystem

I could not build a release version with static linking however, I didn't see any issues with 7.24.1

If you want to go bleeding edge, you can get the 8.0.1 alpha, I'm using on 23.10, I also didn't see any issues but ymmv
6) Message boards : CMS Application : Updated VirtualBox from 5.X to 7.X, CMS tasks keep failing. (Message 49905)
Posted 12 days ago by Toby Broom
Post:
I have nvme SSDs, nothing specical just what came in the Lenovo from the factory, its like the OEM version of the 980 PRO. It could be, however, after startup they don't normally all finish/start at the same time?

7) Message boards : CMS Application : Updated VirtualBox from 5.X to 7.X, CMS tasks keep failing. (Message 49900)
Posted 13 days ago by Toby Broom
Post:
I don't seem to have too many issues, one of my computer has 125 VMs running at the same time at the moment. Gradually ramping up the WUs would probally be a BOINC feature, I'm not sure LHC could manage that.

The only trigger i can see is rebooting, this often seems to cause Theroy but not CMS to have a problem.

In regards to a messed up config of virtualbox I can not see what cause it but when its broke the the hanging disk images then it breaks all the work for that project.

I made my own clean up scripts for Linux, I could put them on Github and port to windows if they are helpful for other.

I made my own scripts since, for the LHC project I think the failure rate is acceptable to them, looking at my BOINC stats I have 0.98 % error rate at the moment from 14035 WUs. I can imagine that the error rate on the CERN side is less since the work inside the VM might have worked.

If I was to make the upgrade from 5.x to 7.x I would let all the work drain out then check the settings to make sure there was nothing hanging around then make the upgrade and restart the work. For a .x release I just install over the top after stopping the work.
8) Message boards : CMS Application : no new WUs available (Message 49601)
Posted 19 Feb 2024 by Toby Broom
Post:
❤️ CMS error rate dropped below 10 %, sadly Theory still over 50 %
9) Message boards : Theory Application : cranky: [ERROR] No output found - SOLVED (Message 49596)
Posted 17 Feb 2024 by Toby Broom
Post:
CERN doesn't work at the weekend so there is no one to stop it, the creation of tasks it automated so I think it's not too bothersome to CERN.
10) Message boards : CMS Application : CMS@Home difficulties in attempts to prepare for multi-core jobs (Message 49575)
Posted 16 Feb 2024 by Toby Broom
Post:
I had one my one of my PCs
11) Message boards : CMS Application : Could not get X509 credentials (Message 49512)
Posted 10 Feb 2024 by Toby Broom
Post:
I set to NNT, no point to hammer the server for no work. Maybe it will be back on Monday
12) Message boards : CMS Application : Could not get X509 credentials (Message 49505)
Posted 10 Feb 2024 by Toby Broom
Post:
I imagine there is some CERN maintaince over the weekend as all the other tasks dried up as well.
13) Message boards : CMS Application : Could not get X509 credentials (Message 49498)
Posted 10 Feb 2024 by Toby Broom
Post:
Back today
14) Message boards : CMS Application : Virtualbox tasks failing on Linux (Message 49366)
Posted 2 Feb 2024 by Toby Broom
Post:
Could be you need to grant permission to boinc it can use the video out:

sudo xhost si:localuser:boinc
15) Questions and Answers : Unix/Linux : code erreur 1 (Message 49341)
Posted 1 Feb 2024 by Toby Broom
Post:
sudo add-apt-repository ppa:costamagnagianfranco/boinc
sudo apt update

sudo apt install virtualbox
sudo apt install virtualbox-ext-pack
sudo VBoxManage extpack uninstall VNC

sudo apt install boinc-client
sudo apt install boinc-manager

I think I used the the 7.18 version as it was the default in the Ubuntu repo, I only switched to 7.24.1 to test a bug that I found with remote desktop
16) Message boards : Sixtrack Application : Tasks available / tasks not available (Message 49340)
Posted 1 Feb 2024 by Toby Broom
Post:
Its how Sixtrack works, they have tons of work then nothing for a while. The other projects have normal stream of work, ATLAS,....
17) Questions and Answers : Unix/Linux : code erreur 1 (Message 49295)
Posted 29 Jan 2024 by Toby Broom
Post:
I don't see an error here, what I have noticed on an upgrade of OS is that the permission of the files is reset or the service goes back to strict protections.

ls -l /etc/boinc-client/ & /var/lib/boinc-client/

All files should belong to BOINC user

When looking at the file with sudo systemctl edit boinc-client.service
You can see the line

ProtectSystem=full (without the #)

e,g,
### Editing /etc/systemd/system/boinc-client.service.d/override.conf
### Anything between here and the comment below will become the contents of the drop-in file

[Service]
ProtectSystem=full

### Edits below this comment will be discarded

### /lib/systemd/system/boinc-client.service
# [Unit]
# Description=Berkeley Open Infrastructure Network Computing Client
# Documentation=man:boinc(1)
# Wants=vboxdrv.service
# After=vboxdrv.service network-online.target
#
# [Service]
# Type=simple
# ProtectHome=true
# ProtectSystem=strict
# ProtectControlGroups=true
# ReadWritePaths=-/var/lib/boinc -/etc/boinc-client
# Nice=10
# User=boinc
# WorkingDirectory=/var/lib/boinc
# ExecStart=/usr/bin/boinc
# ExecStop=/usr/bin/boinccmd --quit
18) Message boards : Number crunching : VirtualBox ``--.. 7.0.14 ..--`` (released January 16 2024) (Message 49279)
Posted 26 Jan 2024 by Toby Broom
Post:
I always upgrade to the latest version of software, it rare there is an issue, the only one I saw was this https://github.com/BOINC/boinc/issues/5214 ,it was fixed though by the BOINC team
19) Questions and Answers : Unix/Linux : code erreur 1 (Message 49261)
Posted 24 Jan 2024 by Toby Broom
Post:
If you want to give it a go again, you can try to setup boinc in virtualbox so you can try things out
20) Message boards : CMS Application : Virtualbox tasks failing on Linux (Message 49260)
Posted 24 Jan 2024 by Toby Broom
Post:
Part of the same issue that VirtualBox isn't working I think

You can run Virtualbox as the boinc user to see if there is some stale disks or it even loads

sudo -u boinc VirtualBox


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