What is 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.

Please note that some of the applications on LHC@home requre Virtual Box to be installed. Please visit the LHC@home information site for more information. If you have any problems or questions please visit the Message Boards, Questions and Answers and FAQ.

Join LHC@home

User of the Day

User profile Profile Ricardo Wagemaker
Head of Backup in a large bank, technical SME and love programming, tinkering, developing for fun. I wish I had studied quantum physics and quantum...


BOINC Pentathlon - Sixtrack sprint
We are very grateful to have been chosen for the BOINC Pentathlon of SETI Germany over the next days. For this, the Sixtrack team has submitted a huge backlog of jobs, and our servers will primarily distribute Sixtrack tasks over the next days. There will only be drip-feed of other applications for now until our backlog is reduced. For fans of other applications, stay tuned or run Sixtrack for a few days.
15 May 2019, 14:30:26 UTC · Discuss

CMS -- Please set "no new tasks"
Hi to all CMS-ers. We need to drain the job queue so that a new version of the WMAgent can be installed.
Can you please set No New Tasks so that your current tasks can run out and no new jobs start? If you have any tasks waiting to run, please suspend or abort them.
Thanks, I'll let you know as soon as the change is done.
14 May 2019, 14:40:22 UTC · Discuss

Database problems
We are having database problems and have to schedule an intervention at 3:30pm UTC. The LHC@home servers are back again. We may have some irregular dispatching of some applications over the next hours.
13 May 2019, 13:01:57 UTC · Discuss

Native Theory Application (TheoryN) Released
The Native Theory Application for Linux has moved out of Beta status and is now generally available. It is similar to the Native ATLAS application in that it requires CVMFS to be installed locally but does not require Singulariy as it uses Linux Containers (runc). To setup your machine for this application please follow the instructions.. Even if the Native ATLAS tasks are running successfully, follow the instructions to ensure that CVMFS is configured correctly for both and that Linux Containers are enabled. This is a new application (TheoryN) rather than an alternative version of the Theory application as they have different resources requirement. If there are any issues, please post them to the Theory messages board.
13 May 2019, 8:07:13 UTC · Discuss

new SixTrack version 5.02.05 released on BOINC for production
Dear volunteers,

after a long period of development and testing, we are pleased to announce that we have on BOINC a new major release of SixTrack. The development team made an impressive job to re-factorise the code, porting arrays to dynamic memory allocation, splitting the source code (gathered in few, huge source files) into fortran90 modules, making maintenance easier and deleting a lot of duplicated code and massive arrays - without mentioning countless bug fixes, documentation updates, re-written input parsing, improved build system and test suite.

We have also implemented plenty of new features. Most of them are still available only on the batch system as CERN (e.g. linking to Geant4 or Pythia, running coupled to FLUKA or other external codes, support for ROOT and HDF5), but many of them can be already deployed by BOINC jobs, like on-line aperture checking, electron lenses, generalised RF-multipoles, quadrupole fringe fields, and hashing of files for checks. All these new features will allow us to study new machine configurations and refine results, and we count on your help!

Thanks again for your support, and keep up the good work!

Alessio, for the SixTrack Team
3 May 2019, 16:01:25 UTC · Discuss

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