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This is a project that utilizes the CERN-developed CernVM virtual machine and the BOINC virtualization layer to harness volunteer cloud computing power for full-fledged LHC event physics simulation on volunteer computers.
This is just a BOINC server. Please visit the LHC@home information for more information. If you have any problems or questions please visit the Message Boards, Questions and Answers and FAQ.

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User of the day


Multicore Shutdown
A new feature has been implemented to shutdown multicore VMs at the end of their life when the idle time > busy time. This means that if we are wasting more time with empty cores than we would loose by kill the remaining jobs, those jobs are killed. This should avoid the situation where a looping Theory job keeps the VM alive while wasting idle cores. If this works the following message should be seen in the task output.

Multicore Shutdown: Idle > Busy ( 1439s > 1382s )

Let me know how it goes. 12 Sep 2017, 13:07:26 UTC · Comment

Server upgrade
We will migrate the lhcathome-dev project to a Centos7 server and upgrade the BOINC server components.

The lhcathome-dev project server will be unreachable for a while later today during the upgrade.
11 Aug 2017, 8:22:39 UTC · Comment

CMS application job queue is being run down.
We want to update the WMAgent job controller, so I've stopped the next batch (I hope). We should run out of jobs in 10-12 hours, so set any machine running CMS tasks to No New Tasks as soon as practicable. Should be up again tomorrow. 26 Jun 2017, 16:00:39 UTC · Comment

CGI testing
We are trying to improve the job limiter that is currently active, so you might experience some instabilities for the rest of the day.

Thank you for your understanding.
23 Jun 2017, 8:53:53 UTC · Comment

Dev server downtime Tue 6 June
We need to rebuild the dev VM as it runs out of memory. Thus the LHC@home-dev project server will be unreachable for part of the day today, 6 Jun 2017, 7:29:39 UTC · Comment

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