CERN Accelerating science

Feed aggregator

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

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.

Service disabled

Sixtrack news - Sat, 10/04/2014 - 10:42
I have managed to stem the flood and disable the service. Apologies and will inform as soon as we are started again.

Disk Limit increased

Sixtrack news - Sat, 10/04/2014 - 02:02
I am unable to stop submission. I have upped the limit on disk space to 500MB. I can't do anything about active WUs but I hope the new limit will suffice for new WUs. More news tomorrow.

Disk Limit exceeded w-b3

Sixtrack news - Sat, 10/04/2014 - 00:35
Drastic action being taken to delete the download WUs. This may crash the server.... Apologies for the wasted CPU.

ATLAS@Home maintenance on 23 Sep

Atlas news - Mon, 09/22/2014 - 15:59
ATLAS@Home will be under maintenance for a short period of time around midday European time tomorrow 23rd September, in order to move to a new disk server.
Categories: Atlas news

BOINCstats/BAM! seeks donations

News of BOINC - Mon, 09/22/2014 - 06:50
BOINCstats/BAM! needs donations for server and network costs. Please support these valuable resources for BOINC users.