1) Message boards : LHC@home Science : LHC@Home 2 (Message 22848)
Posted 13 Aug 2011 by Profile Kibble
It is great that you want to volunteer, John. However I hope you realize that this is a beta test of "simulated" data. It has not been promised that we will be able to actually crunch the real thing.

(Sorry if that sounds a bit stilted, but I hate all the slashes that show up when one uses apostrophes.)
2) Message boards : Number crunching : LHC@home 2.0 is up and running (Message 22847)
Posted 13 Aug 2011 by Profile Kibble
Yes. Very interesting as it is a progressive step forward in using distributed computing resources rather than a closed grid.

I just became aware of this through an article: http://www.theregister.co.uk/2011/08/12/boson_hunt/

3) Message boards : Number crunching : Computation error (Message 22323)
Posted 17 May 2010 by Profile Kibble
Hmm. Seems to me that in a couple of fairly old posts that originally the LHC staff didn't want to use volunteer machines at all. With the savings made by not using an in-house super computer funds could be put to other uses. Now with the economy of so many countries in the dumps we may be seeing a resurgence of the in-house is better ideation. Dunno why, but the thought of sabotaged work units comes to mind. This is the first time I've heard of BOINC screen savers crashing things. Perhaps a look at the source coding for extraneous bits would shed light on the subject. And maybe interviewing the creator(s) of the work units by upper management would not be amiss also.

I'm running BOINC on two duo core laptops and don't use ANY screen savers, myself, and have no plans to do so. Got some nice wallpaper, however. LOL! So far the single work unit I have is processing nicely after a bunch of errored tries by others. Hope the errors are simply due to the screen saver issue!

Happy crunching!
4) Message boards : Cafe LHC : Whatever happened to LHC@home....apologies and thanks. (Message 21893)
Posted 26 Feb 2010 by Profile Kibble
WHOO! Got two! Suspension of other work to complete the LHC@home units was for less than a minute. LOL! At least the project proved it was able to communicate with the clients.
5) Message boards : LHC@home Science : Earth leakage (Message 21482)
Posted 28 Aug 2009 by Profile Kibble
is this the new supposed reasoning for the over heating?

They can't blame the LHC for that yet, but just wait until it's fully operational. LOL!
6) Message boards : LHC@home Science : LHC Will Begin Running at Half Energy (Message 21462)
Posted 7 Aug 2009 by Profile Kibble
LHC News Aug. 6th 2009

Different values and explanations with different journalists writing about this event: http://www.theregister.co.uk/2009/08/07/lhc_back_but_redlined_at_50_percent/

It's interesting that it takes journalists to create the articles instead of the scientific staff. Who's paying them to sit on their hands during the repair work?

Hopefully everything will go well even at half speed. Possible WU's maybe?
7) Message boards : LHC@home Science : Can\'t connect!!! (Message 21262)
Posted 26 Feb 2009 by Profile Kibble

I am NOT able to connect to LHC@home!!

I'm getting always: Account manager error:file not found

I'm trying now for several weeks to connect to the Program!!! But nothing! It still let me NOT connect!

So please help me I don't knew whats wrong???????


Hmmm. An interesting problem, Arne. You have not listed any steps you may have taken to fix the problem, yourself. Perhaps detaching from this project then reattaching will do the trick. Let us know if this works. (Fingers crossed.)
8) Message boards : Number crunching : Changes to Quorum and Replication ! (Message 21261)
Posted 26 Feb 2009 by Profile Kibble
I have just noticed that my latest tasks are showing quorum and replication of 2 and 2.

However there also seems to be a problem with some of these new tasks, ...

Due to popular demand etc etc. No more waste: back on board. To the mods: why not post this change in policy on the front page?

The current crop may well be a test series. My best guess is the system is being worked on and test series being dropped on us. I don't recall ever having seen any update by the primary researchers. Our administrators may not have been kept in the loop here either. Time will tell, maybe...
9) Message boards : Number crunching : Thank you for the work (Message 20947)
Posted 11 Jan 2009 by Profile Kibble
It's only worth doing that if you care about how many credits you have.
There's no point in doing that cause you'd only be wasting CPU cycles on WUs that already have a valid results. You'd be better off letting other projects use those CPU cycles.

Then a purist would follow each work unit and when the quorum was reached, manually abort the work unit in progress. Kind of begs the question of why point credit is even given then. And why there are complaints about old pending credits even.

I'm only running three projects on 2 computers at present. The computers are running 24/7. I check the BOINC manager on both on a daily basis and whether I've reached a quorum on an irregular basis; and only at this site. Hopefully progress has been made in each project. I devoted the 'puters to work on projects that I feel passionate about, and maintaining a credit position in a group is for fun. Also, perhaps, a measure of my devotion to the furtherance of the science in each project. Others probably feel the same.

I'm not Dagorath so won't go on ad infinitum on the subject. Suffice to say that others probably feel the same as I.
10) Message boards : Number crunching : Thank you for the work (Message 20902)
Posted 3 Jan 2009 by Profile Kibble
Doesn't sound anything wrong with that.

The quorum is 3.
Once that's met credits are granted. Any tasks for the WU that have already started to be crunched by PCs will still be credited otherwise they'll be cancelled.

In the case of the one with 4 WUs receiving credit, obviously the one with the error won't get any but as the other 4 completed then they do.

The WUs are only cancelled by the server if they haven't started crunching on the PC

Ahhhh! Then a workaround would be to manually stop each work unit in a batch after a few seconds of work to ensure that it is considered as being crunched? Maybe hard for those with large numbers of puters spread about here and there, but fairly easy if one has only a few machines in a central location- and time to devote to their labor of love. LOL!
11) Message boards : Number crunching : Thank you for the work (Message 20896)
Posted 30 Dec 2008 by Profile Kibble
After all the discussions and arguments about this specific topic I still don't understand why this very interesting project still uses that very wasteful initial replication of 5.

I also appreciate the work over the holiday period. The eight I finished were all credited. However something has changed here. I noticed that out of the eight for which I received credit, 6 of'em gave credit to all 5 iterations of the work units, 1 gave credit to four of the iterations due to client error, and one work unit is still being processed by the last computer in the group.

If anyone noticed differently, please speak up. One example is http://lhcathome.cern.ch/lhcathome/workunit.php?wuid=3300541

I would suggest that someone is either sending out practice units or there has been a change to the protocol.

Just my two pence.
12) Message boards : Number crunching : Bandwidth problems (Message 20768)
Posted 15 Nov 2008 by Profile Kibble
Kinda surprising finding work units available, but unable to make a download.

11/14/2008 5:08:59 PM||Access to reference site succeeded - project servers may be temporarily down.
11/14/2008 5:21:15 PM||Access to reference site failed - check network connection or proxy configuration.
11/14/2008 5:21:18 PM|lhcathome|Scheduler request failed: Couldn't connect to server

And although I have a dialup connection, the load time for the front page timed out prior to receiving the message from BOINC. I guess that the project suffers from more than lack of funding. Perhaps the IS dept. should be notified.

To be fair, however, I did get 2 WU's out of the last 39 or so.
13) Message boards : LHC@home Science : A hacker security breech at Cern (Message 20359)
Posted 14 Sep 2008 by Profile Kibble
Checking out the Wired news site, and found a very interesting article concerning a security breech: http://blog.wired.com/wiredscience/2008/09/hackers-infiltr.html

Hope the firewall gets an update.
14) Message boards : Number crunching : Actual LHC data to crunch? (Message 20316)
Posted 13 Sep 2008 by Profile Kibble
Yeah, it would be nice if the max amount of WUs we get queued up at any time was less than it is now. I get the feeling there's a lot of slow computers out there chugging away at more WUs than they should have received. Not that their help isn't appreciated, but it would be more efficient with shorter queues as the faster PCs would be able to pick them up after finishing their first sets.[/quote]

There are tricks to getting more work units. For one, you can suspend the work on other projects, thus concentrating your slow or fast computer on the LHC variety. (There are limits of course, due to perhaps getting work units that take hours to complete. The short ones usually go quickly enough to get a second helping.)

The LHC web site apparently went down a few times during the run on the available work units. If anyone noticed they could simply manually tell BOINC to try to get in touch during the day. (I admit that I micro-manage occasionally when I find LHC work units available!)

Such is life.
15) Message boards : Number crunching : BOINC 5.10.x?? (Message 20239)
Posted 12 Sep 2008 by Profile Kibble
Well, regardless of how good BOINC version 6 is, after dropping back to 5.10.45 problems with SETI@home work units cleared up. Now that we have work from LHC, I see that earlier problems there seem to have cleared up also. (Out of the 12 I got, created on the 11th, only one was cancelled by the server.)

The work keeps coming. Wonder how long it will last?
16) Message boards : Number crunching : BOINC 5.10.x?? (Message 20035)
Posted 8 Sep 2008 by Profile Kibble
So where could I get the old version from ? With the last upgrade the directories for all my other BOINC projects were shifted. Is there any de-installation routine which will shift them back to where BOINC 5.10 will expect them ?

My last WUs were:
'Redundant result - Cancelled by server'.
Is that the sign of using the wrong BOINC ?
Who is able to correct this towabohu ?
thanks for help

I recently stepped back to the earlier BOINC version, dr mabuse. You can go to http://boinc.berkeley.edu/download_all.php to download the appropriate version. In my case, I simply closed the running BOINC manager program, and executed the downloaded installer for version 5.10.45. This didn't wipe out any of the work units I had. I suppose that any finished work units should be reported first, but both the pending and the running WU's continued smoothly and without problems on a Vista and XP machine here.

I hope this helps.

17) Message boards : Number crunching : bug in cpu usage with boinc 6.2.x (Message 20019)
Posted 7 Sep 2008 by Profile Kibble
[quote]Front page news....

05.09.2008 10:40 BST -

Alex has been doing some tweaking in the background this week so some issues have been resolved. We are looking into the others and fixing them as we find solutions. Also the SixTrack application and the newest version of the BOINC client (6.2.X) don't seem to like each other. The developers are looking into this problem and it will be fixed as soon as possible.
Later days,

The suggested switch back to 5.10.45 has possibly helped solve some SETI problems I've had with a Vista machine. I've since switched my XP puter back; now awaiting some LHC work units to test the cure since I only run LHC and the AI System work units on the XP computer. (BTW, there are always work units available from the Intelligence Realm site: http://www.intelligencerealm.com/aisystem/system.php if anyone is interested.)

Thank you for the suggestion, AF>France.
18) Message boards : Number crunching : Round and round (Message 20013)
Posted 6 Sep 2008 by Profile Kibble
In a previous thread, http://lhcathome.cern.ch/lhcathome/forum_thread.php?id=2833 there were complaints of work units being cancelled by the server as redundant. Now that Alex has fixed the work unit status db it is plain that some of the returned work units were mistakenly classed. An example would be http://lhcathome.cern.ch/lhcathome/workunit.php?wuid=2747167 although there are others. To be fair, some of the work units I had in that group were declared redundant as the last one to be returned, but only after no work being done on them and still within the completion time frame.

I don't expect to receive any score for those "redundant" work units, but this does indicate an underlying problem which will need to be addressed.

Thanks go to the staff for their successes in repairing the site. Unfortunately this seems to be a multiple alarm fire.
19) Message boards : Number crunching : bug in cpu usage with boinc 6.2.x (Message 20012)
Posted 6 Sep 2008 by Profile Kibble
Front page news....

05.09.2008 10:40 BST -

Alex has been doing some tweaking in the background this week so some issues have been resolved. We are looking into the others and fixing them as we find solutions. Also the SixTrack application and the newest version of the BOINC client (6.2.X) don\\\'t seem to like each other. The developers are looking into this problem and it will be fixed as soon as possible.
Later days,

I suspect that due to the holiday schedules that updates to BOINC notifications were overlooked by staff. However, Alex has been busy as we can plainly see: the replies in the window do not go beyond the edge any more. :-)

Whenever there is time, a request for clarification to the BOINC development team might be in order. The only other problem I have personally experienced are with the SETI@home work units starting over and over which could be due to BOINC also.
20) Message boards : Number crunching : Task was reported too late to validate (Message 19967)
Posted 1 Sep 2008 by Profile Kibble
Finally servers accepting results. But credit don't granted because of "Task was reported too late to validate". :(
All tasks was finished more than week ago.
Why report deadline wasn't increased?

Although I haven't got that particular problem, a possible explanation is that the site isn't fully functional yet. After a holiday there are a lot of fires to be quenched, and the staff responsible for the running of this site are only working part time on it. At least the boards are up. Other issues like the text in this message running out of sight and work unit status not being available will be dealt with in a priortized order: paid work still comes first!

Be patient and keep crunching for other distributed projects in the meantime.


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