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CERN Computing Challenge successfully completed

vLHCathome news - Sat, 12/20/2014 - 11:14
The CERN 60th anniversary 12 day "Public Computing Challenge" has just successfully finished. Please see for all the details, and many thanks to all of you who contributed.

As you know, completed Challenge jobs help to fill a database to support a new interactive "game" project we are developing, whose users will be able to tune the Monte Carlo QCD models at the heart of Test4Theory.
Even though the official 12-day Challenge is now over, you can still continue to contribute to this database by running WebAPI jobs logged in with Facebook, Google or Twitter accounts, or even anonymously.

Note that if you are logged in to WebAPI with your BOINC-T4T account, you will run jobs from the BOINC vLHCathome job stream, and receive MCPlots statistics for them.

We send holiday and New Year greetings to all our T4T volunteers and look forward to sharing some exciting developments with you next year.

The T4T and Challenge teams
Categories: vLHCathome news

New tasks have been released

Atlas news - Thu, 12/18/2014 - 09:31
Dear all,

The migration of ATLAS production system is almost complete, for a week now test tasks have been submitted with success.

We are currently resuming normal production rate with task of almost equal duration length.

We have noticed an increase of ~20% of the activity on the ATLAS@home project and would like to warmly thank all the volunteers for their contribution.

After Xmas we shall release a new version of software that includes a new version of vboxwrapper.

Best regards
Categories: Atlas news

Invitation to join CERN Public Computing Challenge

vLHCathome news - Tue, 12/09/2014 - 19:13
As part of the CERN 60th anniversary celebrations and the 10th anniversary of LHC@home, we just began a 12 day "Public Computing Challenge". See

We invite you and your friends to support the Challenge. Go to "JOIN NOW" and "START COMPUTING" on the Challenge website and follow the steps. You keep track of your jobs by logging in to an account on Facebook, Twitter, or Google. The Challenge runs a stream of T4T-style simulation jobs via the new Web_API system (which some T4T volunteers have been successfully alpha and beta testing for us). The Challenge results fill a database to support an exciting new project we are developing: an interactive version of Test4Theory whose users will help to tune the Monte Carlo QCD models at the heart of the system.

Note that if you login with your BOINC-T4T account, you will run jobs from the BOINC vLHCathome job stream, and receive MCPlots statistics, but do not participate in the Challenge.

Thanks to everyone for supporting T4T and looking forward to your help and interest for our future developments.

The T4T and Challenge teams
Categories: vLHCathome news

T4T_WebAPI pre-Challenge test jobs

vLHCathome news - Fri, 12/05/2014 - 19:29
To all T4T_WebAPI testers:
Over this weekend, we will be injecting some short test jobs before the Challenge starts next week.

If you run logged-out (i.e. without a BOINC ID), you will get these short jobs when they are ready, either very short dummy ones (1 minute) or real simulations with 10,000 events instead of 100,000. They will not give you any MCPlots credit of course, but we would like as many testers as possible to try it out. Log back in to BOINC to resume MCPlots work.
Categories: vLHCathome news

Request to beta test T4T_WebAPI

vLHCathome news - Mon, 12/01/2014 - 09:06
As part of the CERN 60th anniversary celebrations (and the 10th anniversary of LHC@home), we're planning to run a two-week "Public Computing Challenge" during December, and at that time we will be asking all of you, our T4T volunteers, to contribute CPU power to this Challenge via BOINC.

But starting today we have a different request. The Challenge will run a special series of Test4Theory simulation jobs, whose outputs will build up a database to support an exciting new project: an interactive version of Test4Theory where users help to tune the Monte Carlo QCD models at the heart of the system. The main developer of this project is Ioannis Charalampidis who works at CERN for the Citizen Cyberlab collaboration.

One component of this interactive system is a web-browser interface to CernVM called CernVM_WebAPI. After alpha-testing this for some time, we think it's ready for wider testing. So we created a special version called T4T_WebAPI, configured to run Test4Theory jobs from web browsers. This way, members of the T4T community can easily become our first beta testers.

From today we are asking all interested T4T volunteers to help to test T4T_WebAPI.

Further information and a series of hints for beta testers is at:

Please give any testing feedback on this forum thread as far as possible.

All the best from:

Ben, Ioannis, and the T4T team
Categories: vLHCathome news

Validation close to finished, new WU next week

Atlas news - Fri, 11/28/2014 - 19:16
Thank you all for your efforts over the last few weeks. The urgent validation WU are very close to being completed and we will run out of new WU in the next few hours. There should be more coming next week.
Categories: Atlas news

database down last night

Atlas news - Mon, 11/17/2014 - 10:21
Due to a technical problem the database behind the ATLAS@home boinc server was unavailable from around 14:30 UTC on Sunday until 9:00 UTC this morning. It is back up and running ok now. Apologies for the inconvenience.
Categories: Atlas news

Request for more crunching in next week or two

Atlas news - Sat, 11/15/2014 - 15:38
The current set of ATLAS@Home work units are quite important to the experiment and would like to get them finished as quickly as possible. Therefore if you have more CPU to donate to ATLAS@Home over the next couple of weeks to crunch through these WU it would be very much appreciated! There are currently around 7000 WU left to crunch in this set and we will provide regular updates of how many are left to go.

Many of the server-side scalability issues have been addressed and we are confident that we can handle more concurrent WU at this time. However the vboxwrapper is still having issues in some cases, so if you notice that you have WUs that are stalled or WUs that consume very small amount of cpu for more than 30 minutes, please abort them since they will most likely not succeed. The expected cputime usage of the WUs varies from 6 to 36 hour, so please ignore the WU progress as reported by the client.

Thank you in advance for your help!
Categories: Atlas news

ATLAS 1.29 is released

Atlas news - Mon, 11/03/2014 - 11:15
ATLAS 1.29 is released, it has a minor change to increase the virtual machine memory from 1.5GB to 2GB as we notice some job failures due to memory limits.
Categories: Atlas news

Heavy I/O on Windows WUs

Sixtrack news - Fri, 10/31/2014 - 20:58
It sems WUs with names beginning w-.... are creating a bit much I/O for Windows. Under investigation, but the results are good and are required. Thanks. Eric.

v1.28 and validation sample

Atlas news - Tue, 10/28/2014 - 21:06
A new sample of tasks was launched, and there is a mixture of short and long jobs. The purpose of those tasks is to do a validation of samples that run through Boinc against the standard ATLAS sample to verify that physics results do not differ. So far ~2k jobs (out of 3.6k) have terminated successfully.

Monitoring of ATLAS simulation jobs on BOINC against WLCG is available on our test server :

Also, the logic of launching the jobs was changed drastically to minimize the downloads of input files. Please, report if you notice something non-optimal with v1.28.

A new thread is being created for this purpose.
Categories: Atlas news

Server replaced

Atlas news - Thu, 10/23/2014 - 18:56
The main server broke and needed to be replaced by a new one. The outage was few hours long, but everything should be back to normal now.
Categories: Atlas news

Server migration completed

Atlas news - Wed, 10/15/2014 - 14:17
The migration to the new Boinc server was completed successfully. We hope you like the new look, those of you familiar with LHC@home should already know it. Please let us know if you see any problems with your work units.
Categories: Atlas news

17:00 CET, 15th October, Service back to "normal".

Sixtrack news - Tue, 10/14/2014 - 17:47
I believe we have finally resolved various issues as of about 16:00 today. Apologies for the downtime. Eric.

ATLAS@home server migration on Oct 15

Atlas news - Tue, 10/14/2014 - 12:03
In the morning (European time) of 15th October we will move ATLAS@home to a new Boinc server. This means there will be a short maintenance period of around one hour. All existing users, results, credits etc will be moved to the new server and so no client changes are required. The DNS alias will change to point to the new server and this could take a few hours to propagate through the system. In case of any problems try removing and re-attaching the project.

This move is part of integrating ATLAS@home into CERN's existing infrastructure for LHC@home apps, and so the appearance of ATLAS@home webpages will change to match the LHC@home style. All the content in the old site (message boards etc) will still be available but the look and feel will be different.
Categories: Atlas news

CERN AFS problems

Sixtrack news - Fri, 10/10/2014 - 17:54
We seem to be having intermittent? problems with our local file system. Server running but.....will fix soonest.

ATLAS@home discussions at the 10th BOINC workshop

Atlas news - Wed, 10/08/2014 - 14:48
The 10th BOINC workshop was hosted in Budapest this early Oct, ATLAS@home has a few issues discussed with the BOINC developers and other projects.

1) With help from the BOINC side, ATLAS will provide a quick button on the website which can detect the OS of the volunteer host, and choose the right BOINC client and VitulBox bundled package for the volunteer host to install.
2) We will work on merging the current ATLAS@home BOINC website and the outreach website

Tech issues:
1) addressed the stale virtualbox issue in which the vmwrapper lose communication with the virtualbox. The BOINC developer will consider implementing the vmwrapper with the Virtualbox native API which could possibly avoid this situation.
2) discussed the issue of the file system inside virtual machine becoming readonly. It might have something to do with not enabling the cache of the physical machine, but so far no clear conclusion for it yet.
3) ATLAS@home will release a new image which adds more debug information and requires less software downloading during the job running.
4) vmwrapper will impose a minimum checkpoint interval (5 minutes) to prevent user from setting up too frequent checkpoint interval (such as 1 minute) which crashes the virtual machine eventually.
Categories: Atlas news

Multiple tasks enabled

vLHCathome news - Tue, 10/07/2014 - 14:04
After many volunteer requests over the years, we have decided it is time to send out multiple T4T tasks to users who enable more than 1 CPU in their BOINC preferences. To begin with we have enabled 2 tasks maximum.

Volunteer feedback about this change is welcome - please use this News thread.

The Team
Categories: vLHCathome news

Service back; 5th October

Sixtrack news - Sun, 10/05/2014 - 15:01
I think we are back in business. Lots of work coming, I hope, once we sort out the disk space issue. Sorry for all the hassle and thank you for your continued support.

Re-enabled daemons

Sixtrack news - Sat, 10/04/2014 - 19:58
I have painfully cancelled all w-b3 WUs. According to doc they stay in the database but are marked as "not needed". I have also disabled further WUs of this type until we sort it out. Hope to have saved some 65,000 valid WUs. We shall see tomorrow. Please post to this thread if further problems (I have restarted as root...). It will probably take some time to get back to normal. Report will follow in due course.