LHC@home

This a research project that uses Internet-connected computers to advance Particle and Accelerator Physics. Participate by downloading and running a free program on your computer. By default, you can run the classic LHC@home application Sixtrack, for simulations of accelerator physics, and help researchers at CERN to improve the LHC.

Other LHC@home simulations that utilizes virtualization to run applications for Theory and experiment simulations for ATLAS, CMS and LHCb are also available. In order to run these, you need to install VirtualBox and enable the additional applications in your LHC@home project preferences.

Please visit the LHC@home web site for more documentation, data and instructions. If you have any problem, question or doubt please visit the Message Boards, Questions and Answers and FAQ sections of the project.

Join LHC@home

Read our rules and policies
This project uses BOINC. If you're already running BOINC, select Add Project. If not, download BOINC.
When prompted, select LHC@home from the list of projects, or enter the URL:
https://lhcathome.cern.ch/lhcathome/
If you're running a command-line version of BOINC, create an account first.
If you have any problems, get help here.

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News

New ATLAS app version released for Linux hosts
We released a new version of the ATLAS app today, 2.41 for the x86_64-pc-linux-gnu platform.
The new features of this version include:
1. It requires the host OS to be either Scentific Linux 6 or Cent OS 7.
2. It require CVMFS and Singularity instead of Virtualbox to run the ATLAS jobs.
3. It is more efficient, as the avoidance of using Virtualbox.
Currently, this version is set to beta version.

For people who want to try it out,we provide a script to install everything including CVMFS, singularity here,

Try it if you are interested! 10 Aug 2017, 11:04:25 UTC · Comment

CMS Weekend problem
Warning: The WMAgent which controls CMS jobs appears to have a failed component very recently. Queue seems to be exhausted. Please set No New Tasks or change to a backup app while I try to raise someone at CERN to fix it. This could be a problem given that this is expected to be the heaviest weekend of the year for holiday travel in Europe... 5 Aug 2017, 4:31:20 UTC · Comment

Optimising distribution of SixTrack tasks
Dear Volunteers,

we are trying to improve the distribution of SixTrack tasks. If your host could process more tasks but during the project update you don't receive any, can you let us know and send us your client logging report? Please continue the thread "SixTrack Tasks NOT being distributed" opened by Eric here:
http://lhcathome.cern.ch/sixtrack/forum_thread.php?id=4324
so that we can collect all the issues in only one place. In this way, we could try to better tune parameters controlling the distribution of tasks on the server side.

At the same time, we apologize for the loss of credits following the accidental deletion of lines in the main DB - please see message:
http://lhcathome.cern.ch/sixtrack/forum_thread.php?id=4362&postid=31563#31563
As you can see, task distribution is progressing regularly since the beginning of the week

Thanks in advance for your precious cooperation,
Alessio and Riccardo, for the SixTrack team 27 Jul 2017, 12:44:17 UTC · Comment

Aborted Work Units
After deleting many really old results from 2013 until March 2017 (was meant to
be December 2016) it seems many Tasks have been aborted. A full analysis
and report will be posted. No action required by volunteers. Eric. 24 Jul 2017, 12:26:54 UTC · Comment

CMS Jobs working again
It's been a few hours now since the Data Bridge appears to have been fixed and jobs are staging out normally. You can resume running CMS tasks at your will. 18 Jul 2017, 17:16:35 UTC · Comment

... more

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