LHC@home

Hey,

Well pending the black hole about to be .. kidding.

I thought i would help out a bit but i get no workload? Yet there seem to be about 260 pending projects on the server?

One thing i was specifically wondering about, if two photons one a bit bigger then the other traveling at LHC speeds were to smash head on into each other, what might happen, im visualizing a big black hole in my head :Þ

Cheers

Hey,

Well pending the black hole about to be .. kidding.

I thought i would help out a bit but i get no workload? Yet there seem to be about 260 pending projects on the server?

The workunits are actually in progress, meaning that they have been sent to a computer, but have not yet been returned. To see if work is available to be sent to your PC, you need to check the top line, which currently states Out of work.

Michael

Ah ok, thanks.

This isn't uncommon on LHC. WUs come in groups and are not always available. However there is indication that WUs will be available in a day or so, so just stay attached.

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Never mind, the majority of "work" that I have seen consists of < 2 Minute runtime, difficulties uploading and finally getting flagged "aborted by Project" all over.

The Project is still running on its last leg, behaves like a crippled Alpha Pre-Release and by now looks rather BOINC-Experimental to me.

If the admins would like to continue using it (giving the timelines I've seen so far) I would recommend closing the doors for 5 years, fixing the da*m code for once and not re-open before it's at least behaving somewhat functional.

If the Large Hadron Collider itself was behaving like this Project, it would never pass any QA and safety protocols.

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Scientific Network : 45000 MHz - 77824 MB - 1970 GB

Now i get that AHA feeling, just read Rivers post too. Anyway, congratulations on the beam, i really wanted to watch this on the tv, but the stupid bbc went to sports and commercials as the exciting stuff happened, that is they were with it the first time but missed the other 12 atleast ;\\ And sadly the web stream was swamped, and no tv cable network here in norway was smart enough to broadcast from the live satellite streams... Oh well considering what mainstream media thought this event would be... thats not really surprising. Somehow they had all missed the fact that the first proton smack wouldnt happen for a month, if everything went as planned today.

Oh well, Congratulations! I hope you have plenty of champaign and cigars over there in CERN!

Never mind, the majority of \"work\" that I have seen consists of < 2 Minute runtime

That\'s not a problem, it indicates the parameters used for the simulation caused the beam to hit the accelerator wall, it lets CERN know not to set LHC up that way.

difficulties uploading and finally getting flagged \\\"aborted by Project\\\" all over.

LHC@H runs with IR>Q to get WU results back quickly. I believe that is why you are seeing \"aborted by project\" - Q has laready been reached by the time crunching starts for your WU.
This set-up has been debated on these boards but the scientists have apparently asked the admins to run things this way (rather than set IR=Q and short WU deadlines). Since LHC@H is over-subscribed with crunchers, the project isn\'t suffering (though the wider BOINC community might be).

The admins have estimated they need about £60k to do all the upgrades and enhancements they would like to, but they don\'t have the funding. (Given the cost of the LHC itself, that seems rather short-sighted of CERN, but that is the current situation.)

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Hm, and I thought a 0.5 days Cache on a fully Long Term Debt-starved project should be more than quick enough, being run on fairly high performance Systems - running 24/7 with permanent Internet connection (?!)

If that's the true reason behind the Aborted by Project results (on my side mostly helped by taking hours to simply upload onto the crippled server), LHC@Home is going to see alot of not so happy folks, since turnaround times will hardly get any better than this. Some of the cancelled WorkUnits had a turnaround time of as little as 90 Minutes, apparently all of them significantly less than the 0.5 days - if even that's too slow I really can't help it...

(naturally, I'm not going to set a 0.1 days or even realtime cache for a single project that most of the time doesn't have work anyway)

-- edit --

Odd enough, the Results table flawlessly accepted alot of the Results that I saw with the "Aborted by Project" Flag on the Clients.
So all in all, looks buggy to me... or some hidden Flags or Quick&Dirty server-sided workarounds bending BOINC around itself.

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Scientific Network : 45000 MHz - 77824 MB - 1970 GB

I get this one now.
Thu 11 Sep 2008 12:24:01 AM CEST|lhcathome|Message from server: Server error: can\'t attach shared memory

TBH, i hope this lhc@home thingie will be used to calculate data from the collider. As far as the bogus, gee i hope not, would be nice to know how our computers have been contributing and what has been learned by it, if and how its been implemented and so on. Btw some project GFX would be nice too.

If nothing else, this project could use the data gathered from the lhc to simulate bigger accelerators. And how our results compare to the real test later next month.

Why the heck does the bbc still going around trying to reassure people? Like fiering a proton around at high speeds ( just like what happens in our upper atmosphere all the friggin time ) would spawn a black hole? The stupidity of main stream media really shows its rather ugly face here now.