Project News - LHC@Home

[chooka03]

Thx mate.
Hey do those wu's ever get stuck??
I've got an ATLAS wu that's been at 100% for ages. Current run time is 1 day 7hrs.
I have a feeling it's stuffed.

Edit - I aborted it. The CPU usgae was stuck at 0.21% and not moving. That was a waste of 2 days :(

[tazzduke]

Hi Chooka03

Sorry I don't know, as I don't run the VM version of ATLAS workunits.

You may get the occasional hangup, this is either due to the Host OS, the VM or a bad workunit, so many variables are at play when there is a VM involved lol.

There is heaps of reading of the forums over at LHC though lol.

Hope you are having a good day.

Regards

[chooka03]

Well that sucks!

https://www.swissinfo.ch/eng/cern-drafts-plans-to-idle-accelerators-due-to-europe-s-energy-crunch/47875950

High energy prices also hitting CERN as well as us crunchers :(

[Dingo]

[LHC@home] Seasons greetings
Many thanks to all our volunteers for your contributions to LHC@home over the last year!

Some highlights from CERN during 2023 can be seen in this video.

The LHC@home team wishes you a Merry Christmas, restful holidays and all the best for 2024!

View article · Fri, 22 Dec 2023 07:18:09 +0000

[Dingo]

[LHC@home] 20th BOINC Workshop May 29-31
The registration is now open for the 2024 BOINC Workshop -- this year in person, at CERN.

https://indico.cern.ch/event/1379525/overview

Please register if you plan to attend.

View article · Mon, 22 Apr 2024 09:21:39 +0000

[Dingo]

[LHC@home] Downtime 1 October
LHC@home BOINC servers will be down for a while later today due to a database intervention.

View article · Tue, 1 Oct 2024 08:02:24 +0000

[Dingo]

[LHC@home] Downtime 1 October
LHC@home BOINC servers will be down for a while later today due to a database intervention.

View article · Tue, 1 Oct 2024 08:02:24 +0000

[Dingo]

[LHC@home] Seasons greetings
Merry Christmas and a peaceful end of the year from the LHC@home team!

Many thanks to all our volunteers for your crunching and contributions!

Here are some highlights from 2024 at CERN.

Greetings and best wishes for 2025!

View article · Fri, 20 Dec 2024 12:18:57 +0000

[Dingo]

[LHC@home] Maintenance downtime
Our BOINC services will be unavailable for a while this morning between 8 and 9AM CET for a database upgrade.


View article · Tue, 11 Mar 2025 06:16:13 +0000

[chooka03]

Hey Dark Angel, are there any tips for running CMS work?
They look like very long work units?
I just downloaded 5 to try them out and reduced my core count to 50% so that I'm only using the cores not threads otherwise it bogs down Einstein@Home.

TIA
 

[Dark Angel]

Hey Dark Angel, are there any tips for running CMS work?
They look like very long work units?
I just downloaded 5 to try them out and reduced my core count to 50% so that I'm only using the cores not threads otherwise it bogs down Einstein@Home.

TIA
 

Yep, turn SMT off and make sure your VirtualBox installation is working and that the Boinc user is a member of the VBox user group (if you're using Linux).  They're long units and they use a LOT of data, so if you're going to run them on more than one machine consider using a squid proxy to cache data.

[chooka03]

Thank you.
Maybe I should stick with ATLAS lol 

[Dark Angel]

VBox or native?  Atlas benefits from a local proxy as well in either form but native has additional things to do when getting setup and only runs on Linux.  If you're running in on Windows they're all VBox units.

[chooka03]

Urm... I think it's just using a Vbox.
I did install Linux on my VM but it's been ages since I've tried using it. I'm pretty sure I just use Windows and the Vbox.

[Dark Angel]

If you only run it on one machine and one unit at a time there's no benefit to running a network proxy just for LHC.  If you run multiple units and multiple machines, even if they're all VBox units, then the saving in network traffic, and the amount of time saved from not having to download common files over and over again, is significant.