1) Message boards : Number crunching : We will NOT be crunching the results of the LHC collisions (Message 22825)
Posted 1 Aug 2011 by darkpella
Post:
From the LHC++@Home home page:

LHC++@Home is based at CERN and uses the CERN-developed CernVM and BoincVM systems to harness volunteer cloud computing power for the CERN Large Hadron Collider (LHC) physics experiments. We will host several sub-projects as we work with different physics groups.

Seems pretty clear to me.


-- Tony D.


As Tony D. pointed out Test4Theory@Home IS part of CERN/LHC Volunteer Distributed Computing effort, as being part of LHC++@Home, which shall broaden the use of VDC by the LHC science team beyond the goals of LHC@Home/sixtrack, thus meaning that further future BOINC-projects shuld be added to the LHC++@Home program beyond T4T@H.

By the way, until yesterday, July 31st 2011,, T4T@H was in alpha stage and account creation required an invitation code (I am among the alpha-testers).
Since today, August 1st 2011, T4T@H moved to open beta, so anyone can create an account there and start crunching, though you have to install ORACLE VM to actually crunch WUs form T4t@H.

Since I joined T4T@H I have never seen a No work available message form the BOINC-Client..

darkpella
2) Message boards : Number crunching : Veeery short WUs (Message 19999)
Posted 5 Sep 2008 by darkpella
Post:
Hi,

I noticed that many among the latest WUs my hosts processed lasted no more than 10 seconds (mostly much below that).

Is that normal?

Bye

darkpella
3) Message boards : LHC@home Science : Sixtrack and future LHC@H use (Message 17699)
Posted 3 Aug 2007 by darkpella
Post:
First the Herr thing confused me for a while too, but his surname is Herr.

Secondly it will still be sixtrack which will be used for the new study and the current jobs are a lead up to a more robust study.

Thirdly as regards other applications, I have said this dotted around the place, we are investigating them at the moment. Porting the software the LHC experiments(ATLAS, CMS, LHCb, LHCf, Totem and Alice) use is not easily done so we have people looking into that. Garfield we hope to be discussing in the nearer future it is closer than running actual science from the LHC but still in discussion stages.


Neasan,

thanks for the update.

Sorry for bothering you regarding other applications, and GARFIELD in particular, but I guess most of us crunchers had expectations about that since one of the last news we got before moving LHC@H to QMC mentoned that GARFIELD would have been put aside to SIXTRACK on LHC@H.

Thanks anyway.

darkpella
4) Message boards : LHC@home Science : Sixtrack and future LHC@H use (Message 17697)
Posted 3 Aug 2007 by darkpella
Post:
Hi,

I've just read Neasan and Alex's report of Werner Herr's statementa bout LHC@H past and future role in commissioning of the LHC (by the way, many thanks to Neasn and Alex for getting this and having it published on LHC@H newsfeed!).

In Mr. Herr's words (or is it Mr. Werner, Herr means Mr. in German..) LHC@H will be devoted to the study of the effects of focusing magnets on beam properties next.
Will Sixtrack be used for this study as well?

What about the porting of other applicatiosn used within the LHC project to the BOINC environemnt (I read about GARFIELD and ATLAS being ported to BOINC in the past)?

bye

darkpella
5) Message boards : Number crunching : One question for the people at Queen Mary University (Message 17246)
Posted 4 Jul 2007 by darkpella
Post:
Hi guys,

I guess everyone has his own answer to teh question i'm posing, but I would like the admins from QMU to reply, if they're reading...

And the question is: Is any batch scheduled to be loaded to LHC@Home for crunching and is porting of new applications to LHC@Home scheduled, as far as you know?

Don't take me wrong, I do enjoy the good work you did transfering the LHC@Home site and its services as well as redesigning the Website, but I guess we all would like to know whether this was done with some vision of what the LHC@Home cruncher base should be used for in the near future, or right now this website is only meant as a placeholder.

Thanks

darkpella
6) Message boards : Number crunching : A Miracle! (Message 15504)
Posted 18 Nov 2006 by darkpella
Post:
Yep, got some myself... well, I forced it to get 5 actually...
7) Message boards : Number crunching : Garfield is coming.... (Message 14900)
Posted 29 Sep 2006 by darkpella
Post:
Hey cool, that are very good news for LHC@home! :-)

Looks like they're not yet up'n'running, though..

Here's the last work request log my client mad to L@H some seconds ago

29/09/2006 16.23.53|lhcathome|Sending scheduler request to http://lhcathome.cern.ch/lhcathome_cgi/cgi
29/09/2006 16.23.53|lhcathome|Reason: Requested by user
29/09/2006 16.23.53|lhcathome|Requesting 1728 seconds of new work
29/09/2006 16.23.58|lhcathome|Scheduler request succeeded
29/09/2006 16.23.58|lhcathome|Message from server: Server can't open log file (../log_boincsrv02/cgi.log)
29/09/2006 16.23.58|lhcathome|Project is down
8) Message boards : Number crunching : Garfield is coming.... (Message 14897)
Posted 29 Sep 2006 by darkpella
Post:
Let's have some "BOINC Lasagna" ready for Garfield ;-)


Oops, looks like I missed the meaning....
9) Message boards : Number crunching : Garfield is coming.... (Message 14895)
Posted 29 Sep 2006 by darkpella
Post:
darkpella
if my memory is correct ben segal mentioned months ago that they were looking to port more programs to boinc. particular the garfield application. So a total surprice its not, but it is a nice gift. I almost feel like i'm having a birthday.


Your memory is right, watnou, but, IMHO, it looked pretty clear from Ben's psots that having garfield, and maybe GEANT4, up'n'running on L@H needed people at CERN to first make their mind up about whther they still wanted to devote interest and resources on mass distributed computing.

This is why I think that moving the project (partly) to QMC helped a lot. It's only my humble opinion, obviously.

bye

darkpella
10) Message boards : Number crunching : Garfield is coming.... (Message 14893)
Posted 29 Sep 2006 by darkpella
Post:
From L@H newsfeed:


September 29, 2006
LHC@home server support will be migrated progressively from CERN to Queen Mary College over the next few weeks, with the support of GridPP. When the migration is completed for the primary application (Sixtrack), a new CERN application (Garfield) will be introduced on the server, running side by side with Sixtrack. This should assure a more even provision of work units for the LHC@home community.
We will make every effort to keep you informed as this transfer proceeds.


I can bearly believe the people at CERN finally (almost) made it to move a new application to L@H, either they realized this thing works, or some mad cruncher found CREN's director phone number and home address ;)!

Guess moving the hardware and, likely, part of project administartion off from CERN to QM College will help a lot and is likely to have been decisive in convincing CERN to get back from the give-up strategy they were in the facts adopting for L@H, but hey, both us (the humble crunchers) and them (the eggheads at CERN) agreed that a higher engagement in project administration and communication was needed for L@H not to die on starvation, so, if the people at QMC will help with this, both them and CERN's decision are welcome, IMHO.

The very first step along this transition road seem difficult though, this the latest post on L@H newsfeed :(

29.9.2006 12:32 UTC
Project temporarily stopped, while a disk issue is being solved. A new batch of jobs are ready and will be loaded when the disks are fixed.

Will wait and hope...

Greetings folks!

darkpella
11) Message boards : LHC@home Science : Strength of glass on the moon (Message 14640)
Posted 14 Sep 2006 by darkpella
Post:

Well, actually you would if heat dispersion though fluid convection is an issue, as it is, for example, for household windows


Good point, but I bet it's not cost effective for domestic insulation.


One of TEFLON's first applications was Apollo spaceship thermal shield, and it was not cost effective either, now there's a TEFLON layer on every non-sticking pan...


How many domestic windows are there on the moon?


Not many, indeed, and even if they were, there's almost no atmosphere on the moon, hence heat dispersion through a convection/conduction scheme is not at all an issue....
12) Message boards : LHC@home Science : Strength of glass on the moon (Message 14630)
Posted 8 Sep 2006 by darkpella
Post:

Aerogel is a silicon based substance, and there the similarity to glass largely stops. Although it has a density approaching that of air, it is extremely porous. You wouldn't use it for windows unless you wanted all your air to leak through it.
You can get more details about Aerogel on the NASA web site.



Well, actually you would if heat dispersion though fluid convection is an issue, as it is, for example, for household windows
It would anyway be necessary to seal it between two layers of some kind of glass, to avoid air leakage thorugh the aerogle layer and, possibly, its damaging though environmental agents (dust, wind) but the heat conduction though this aerogel layer would be almost none. Put an aerogel layer on your roof as well and you'll get an almost adiabatic house, needing much less energy both for heating and for air conditioning. This, in turn, would also make much more feasible to heat or refrigerate a house though geothermal gauges possibly driven by solar energy, hence with no fossile fuel consumption for heating and air conditioning (and a fair long term saving on energy bills!)
13) Message boards : Number crunching : I think we should restrict work units (Message 14439)
Posted 25 Jul 2006 by darkpella
Post:
Oops, I just forgot something:
;)
14) Message boards : Number crunching : I think we should restrict work units (Message 14438)
Posted 25 Jul 2006 by darkpella
Post:
By the way, the LHC-alpha project has just some 141510 (!!!) WUs available for crunching... but account creation is disabled!
I hope not to be too much assertive, but it looks to me that having to do with the fundamenatals of the universe has somehow led the CERN-people to lose some common sense.. GIVE US GREEDY CRUNCHERS THOSE BLOODY ALPHA-WUs!!!!!
15) Message boards : Number crunching : I think we should restrict work units (Message 14435)
Posted 25 Jul 2006 by darkpella
Post:
Quote fron Rosetta@Home RSS-Newsfeed:
"Jul 15, 2006
A note from David Baker: We desperately need as much CPU power as possible for the next two weeks--there are more than 25 CASP targets due, including some that are our best shots at really high resolution models. Frustratingly, we won't be able to do anywhere near as much sampling as we had planned for these proteins as there are so many coming due near the same time, and thus can't really expect the accuracy we had hoped for. So if it is at all possible for you to increase your rosetta@home cpu time for the next two weeks please do--it will make a huge difference for our collective efforts!"

Well, it looks like there are people desperately needing your crunchin'.. mighte be developing DC-apps to better investigate the way your (and your relatives and friends') proteins fold and make you (and your relatives and frineds) either healthy or (badly) ill is not as worthwhile and attarctive as developing the right tuning for some superconductive electromagnets driving hadrons around to inevstigate what the universe is, but a volunteer cruncher should be a generous person by definition.. so why not giving David a chance for next the 4 days nad let the LHC-hungries try to feed thir caches up with the few hadron-WU the CERN-people are releasing these days?
16) Message boards : Number crunching : Are we dead in the water? (Message 13577)
Posted 12 May 2006 by darkpella
Post:
Fine to hear you again Chrulle, didn't know that the submission system was fully automated, although some automated system to post an advice to the project news, and consequently to the the RSS feed, would be greatly appreciated.. this no longer a problem of yours anyway ;).

Bye

darkpella
17) Message boards : Number crunching : Are we dead in the water? (Message 13559)
Posted 11 May 2006 by darkpella
Post:
The project news are posted as RSS feed as well, but they're not so up-to-date, so I guess the real problem is the people at CERN not caring enough about their poor loyal crunching sheeps!

darkpella



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