Message boards : Cafe LHC : LHC cooling problems!
Message board moderation

To post messages, you must log in.

AuthorMessage
ayarka

Send message
Joined: 11 Sep 08
Posts: 2
Credit: 881
RAC: 0
Message 20325 - Posted: 13 Sep 2008, 19:41:30 UTC

Greetings to all from a new member of LHC@home.

I have been happily crunching numbers for LHC@home on my machines since 2 days, but this morning, I noticed that BOINC did not receive any data blocks for few hours, I checked the LHC operation page and discovered that 2 major sections (78 and 81) of the LHC were shut down due to loss of cooling (cryo problem), later they went into \"access mode\" allowing people to enter inside the LHC (apparently to fix it), but shortly thereafter, a 3rd section got the same problem, they tried to start the beam only from sections 1 to 6 but without luck, now it seems that there is a vacuum/cooling problem in at least 3 sections according to the info on this page: http://ab-dep-op.web.cern.ch/ab-dep-op/vistar.php?usr=LHC
And this page shows a grphical overview of the cooling status of the whole LHC by sections: http://hcc.web.cern.ch/hcc/cryo_main/cryo_maintain.php

My question: is any of you still receiving data? My Boinc was idle the whole day!
ID: 20325 · Report as offensive     Reply Quote
PovAddict
Avatar

Send message
Joined: 14 Jul 05
Posts: 275
Credit: 49,291
RAC: 0
Message 20353 - Posted: 14 Sep 2008, 16:34:19 UTC - in response to Message 20325.  

LHC@Home never has work. Except when it does :) Seriously, it usually doesn\'t have work. We recently had a somewhat-big batch to process, first in a few months, but it\'s all processed by now (I think).

And availability of work is unlikely to have anything to do with cooling of the collider...

ID: 20353 · Report as offensive     Reply Quote
ayarka

Send message
Joined: 11 Sep 08
Posts: 2
Credit: 881
RAC: 0
Message 20357 - Posted: 14 Sep 2008, 21:26:25 UTC - in response to Message 20356.  

Many thanks for the replies.

I have been doing distributed computing for many years,
be it for Seti@home, the Cliamte prediction project,
or stardust@home, and only very recently I started
with LHC@home, that\'s why my knowledge about it is rather
limited, so thank you again for the info.

Physics was always my passion, and I am more than happy
to contribute to one of the greatest scientific experiments
of our time, whether it is a simulation or real data,
and even if it is only needed once every 6 months! ;-)





ID: 20357 · Report as offensive     Reply Quote
tullio

Send message
Joined: 19 Feb 08
Posts: 708
Credit: 4,336,250
RAC: 0
Message 20456 - Posted: 21 Sep 2008, 2:50:49 UTC - in response to Message 20357.  


Physics was always my passion, and I am more than happy
to contribute to one of the greatest scientific experiments
of our time, whether it is a simulation or real data,
and even if it is only needed once every 6 months! ;-)

You could try also Einstein@home, which looks for gravitational waves, or QMC@home which makes computer chemistry calculations via the MonteCarlo method.
Tullio
ID: 20456 · Report as offensive     Reply Quote
Professor Ray

Send message
Joined: 26 Nov 05
Posts: 39
Credit: 435,286
RAC: 5
Message 20472 - Posted: 22 Sep 2008, 0:08:02 UTC - in response to Message 20456.  
Last modified: 22 Sep 2008, 0:10:44 UTC


Physics was always my passion, and I am more than happy
to contribute to one of the greatest scientific experiments
of our time, whether it is a simulation or real data,
and even if it is only needed once every 6 months! ;-)


You could try also Einstein@home, which looks for gravitational waves, or QMC@home which makes computer chemistry calculations via the MonteCarlo method.
Tullio



Eh, physics is alright. Don't talk to an engineer 'bout that though. LOL.

Physics IS cool. I have an equation that models a set of graviton particles in 3D space. I could NEVER get over how cool it was that ONLY physics was at work.

Don't mention any of that to a mathematician though. I believe it was Einstein who said that it was the mathematicians who screwed physics up ("Not even I can understand it any more").

Admittedly those are fascinating studies, there can be nothing more fascinating than the exegetical stuyd of scrpture.
ID: 20472 · Report as offensive     Reply Quote
Professor Ray

Send message
Joined: 26 Nov 05
Posts: 39
Credit: 435,286
RAC: 5
Message 20474 - Posted: 22 Sep 2008, 0:19:48 UTC

It is my prayer that CERN can finger out just what the problem is and resolve it.

Lord knows the world doesn\'t need Europa to go into a SECOND dark age.

LOL.

Get well soon CERN.
ID: 20474 · Report as offensive     Reply Quote

Message boards : Cafe LHC : LHC cooling problems!


©2024 CERN