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1)
Message boards :
Number crunching :
Initial Replication
(Message 17646)
Posted 31 Jul 2007 by John McLeod VII Post: Einstein can afford this kind of thing occasionally, LHC can't. LHC has people waiting on the results to get physical work done (aligning the magnets). Einstein does not. Since LHC has real world deadlines, LHC has a problem with maximum turn around time for the WUs, therefore a higher initial replication is required. Einstein and S@H on the other hand are trying to get through a huge pile of work, and that leads to an initial replication to match the minimum quorum. This is documented in earlier threads if you care to go looking (try a couple of years ago). |
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2)
Message boards :
Number crunching :
Please make me the Founder
(Message 17316)
Posted 9 Jul 2007 by John McLeod VII Post: A function to allow automatic team transfer has been added to the latest version of the BOINC source. |
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3)
Message boards :
Number crunching :
XML Stats Export
(Message 17096)
Posted 26 Jun 2007 by John McLeod VII Post: 'larry1186' sounds to me as if you're a common centipede aka Lithobius Forficatus. Which only has up to 15 pair of feet... In which case, there are more projects than you have feet. |
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4)
Message boards :
Number crunching :
Merge??
(Message 17045)
Posted 16 Jun 2007 by John McLeod VII Post: Thanks Jim, but I pretty much stay on top up of keeping my managers updated. That particular box hasen't even done a wu yet and it's listed.....I think, if I remember right, 187 times! Would it work if I detached that box and tryed to reattach it? And do you know if I could take care of this through bam or is bam the problem? I just noted an interesting phenomon. I seem to have stopped getting ghost clients about the end of May. I believe that there may be a bug fix in the most recent version of the client. BTW, you can merge something over 100 at a time. |
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5)
Message boards :
Number crunching :
Merge??
(Message 17029)
Posted 14 Jun 2007 by John McLeod VII Post: Thanks Jim, but I pretty much stay on top up of keeping my managers updated. That particular box hasen't even done a wu yet and it's listed.....I think, if I remember right, 187 times! Would it work if I detached that box and tryed to reattach it? And do you know if I could take care of this through bam or is bam the problem? The problem is that they don't STAY fixed. If anything causes the host id to split again, it goes off into never never land again. |
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6)
Message boards :
Number crunching :
New Hosts are Multiplying !
(Message 16711)
Posted 14 Apr 2007 by John McLeod VII Post: There is a fix If they only STAYED fixed. |
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7)
Message boards :
Number crunching :
Trojan used by dishonest BOINC cruncher
(Message 16625)
Posted 26 Mar 2007 by John McLeod VII Post: BTW, from what I understand, and this is not well substantiated, it is over 20 people that have been banned. I believe many more have quit processing there because of this. |
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8)
Message boards :
Number crunching :
Because you asked....
(Message 16567)
Posted 17 Mar 2007 by John McLeod VII Post: [...]prune out the millions of unwanted hosts from the db before the real migrate, perhaps only migrating those hostids that have ever submitted work. I have a slightly different solution that may generate a smaller table. Force a merge between all hosts that are normally allowed to merge that have the same name. This will get rid of more hosts as some of those host will still have WUs attached. Then auto delete any hosts that can be deleted that have not reported in the last 30 days or so that have no WUs attached. This should generate a fairly small table of hosts. |
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9)
Message boards :
Number crunching :
/stats/ empty
(Message 15968)
Posted 2 Jan 2007 by John McLeod VII Post: Any idea on what the URL will change to once the project has moved to Queen Mary? |
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10)
Message boards :
Number crunching :
Please make me the Founder
(Message 15745)
Posted 30 Nov 2006 by John McLeod VII Post: ... BOINC now has a feature for members of teams with inactive founders to request the foundership and have it transfered to them without admin intervention. However LHC will have to update their php code and their database tables ... I believe that work that was never returned gets a shorter deadline when re-issued. |
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11)
Message boards :
Number crunching :
New computer database entry created on each connect
(Message 15424)
Posted 12 Nov 2006 by John McLeod VII Post:
This only works if you have installed as a service. Possibly only on Windows. |
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12)
Message boards :
Number crunching :
O.K., I'm New! No Work??
(Message 14405)
Posted 23 Jul 2006 by John McLeod VII Post: Thanks very much for your reply mmciastro. I am actually attached to four projects. Any advice? <edit> Perhaps I have two boinc accounts?? You cannot merge two accounts in the same project, but the separate projects can be successfully "merged" by setting the email addresses the same. |
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13)
Message boards :
Number crunching :
I think we should restrict work units
(Message 14404)
Posted 23 Jul 2006 by John McLeod VII Post: .... What happens when two particles traveling in opposite directions at nearly the speed of light hit each other? A collision at nearly twice the speed of light! My machines that are always connect (usually) have a cache of 0.1 days. My machines that can only connect once a day have a cache setting of 1.0 days. If it were any less, they would not be able to crunch all of the time (they are attached to enough projects so that I don't really care which project they crunch for at any given time). The reason that I say usually 0.1 days is that I work on the CPU scheduler and work fetch algorithms - sometimes I need to test some boundary conditions (and I have not yet gotten an LHC result when the cache was set high on the dev machines). |
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14)
Message boards :
Number crunching :
Why can't I get any work?
(Message 14403)
Posted 23 Jul 2006 by John McLeod VII Post: Whether there will be in the near future enough of work? The very nature of this project is to have work sometimes and not at other times. Out of my 11 machines, I believe that I got about 4 results in the last few days (all returned). |
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15)
Message boards :
Number crunching :
Please make me the Founder
(Message 14402)
Posted 23 Jul 2006 by John McLeod VII Post: To the SysAdmin/Moderator or just a person with the nessecary power. I believe that this may take a while, as I believe that they do not currently have a BOINC sysadmin. |
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16)
Message boards :
Number crunching :
Not HAPPY people.
(Message 13383)
Posted 15 Apr 2006 by John McLeod VII Post: Did JM7 get the signs wrong? Well no, becoause the sign depends whether you read the table as being of debt owed *to* the project, or debt owed *by* the project. I believe that the signs are reversed for the calculations. However, in my defense, Short Term Debt was in place before I started, and the signs for LTD match those for STD (imagine trying to explain that dichotomy). In actuallity, it is a CPU balance instead of a CPU debt calculation. However, I am not about to try to fix it. |
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17)
Message boards :
Number crunching :
I think we should restrict work units
(Message 13382)
Posted 15 Apr 2006 by John McLeod VII Post: My cache is set to MAX on all 3 machines for LHC because it usually don't have work and it takes less than 2 days for it to run out and 1 machine is usually not connected (alienware laptop), my old dell is on crappy internet (semibraodband cellphone modem competing with file sharing), and the other one is at work so its got a good connection. LHC is at 15% for me but its struggling to reach 10% of my total credit because it don't always have work. Oh yeah one trick to force your boinc to dowload the most possible LHC workunits is to suspend all other projects, update on LHC, then resume all the other projects. Sometimes on a one or two day window when LHC has work, boinc dont want to download any. THe suspend-download-resume trick works really well and LHC's short deadlines means they get crunched first, and I don't care if I can't complete all the QMC work on time. You only get one cache setting per venue. You do not get a separate cache setting per project - The General Settings are for all projects. With the more recent versions of BOINC the problem with QMC would also resolve itself after the first batch of work. |
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18)
Message boards :
Number crunching :
can't download
(Message 12535)
Posted 28 Jan 2006 by John McLeod VII Post: Yes, still runs fine otherwise. And it does not seem to be everytime the benchmarks run. So, I am still looking to find the exact sequence. But, at the moment, I hesitate to risk more than one system as I am not much into thrill rides... :) The code has been checked in. However, it includes a major bug submitted by someone else as a modification to the LTD calculations. Based on the code checked in, I generated a pair of scanarios where a work fetch from one project and a work complete from a second (requires a third project to make it interesting) were done in a different order, and the LTDs were thousands of seconds different. |
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19)
Message boards :
Number crunching :
Download issues
(Message 12524)
Posted 27 Jan 2006 by John McLeod VII Post: Hi all. Wondered if I could have your two cents... :D BOINC will get into this situation if any of the deadlines are a bit tight. Won't download anything from anywhere. If it is just this project and you are attached to other projects, it is entirely possible that LHC needed some extra CPU time recently, and was thus barred from getting new work until it had paid back the time. My guess is that since the detach / attach worked, it was that LHC had used some extra CPU time and was barred from downloading work in order to meet the resource shares that you specified. |
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20)
Message boards :
Number crunching :
can't download
(Message 12521)
Posted 27 Jan 2006 by John McLeod VII Post: Yes, so far so good. THough I still have it only running on one 4 CPU system. The code that John did seems to be fine. Though I am having some other issues: Is it only after the benchmarks run? Will it work if the benchmarks do not run? |
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