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41)
Message boards :
LHC@home Science :
Can a black hole pull matter out of another black hole?
(Message 13325)
Posted 11 Apr 2006 by Nuadormrac Post: Eventually, they might merge together to become 1 object? I'd have to look to see if there are any suggestions/theories in place that might indicate one way or the other. BTW, black holes might not be such that they eventually don't start to lose matter anyhow. At least based on some more recent http://www.damtp.cam.ac.uk/user/gr/public/bh_hawk.html We can try to describe the interaction of some quantum matter with gravity by quantising the matter on a fixed, classical gravitational background. That is, we can try quantising the matter, but not the gravity. This will work only if the gravity is weak. It should work outside a large black hole, but not near the singularity. Actually, not to throw controversy into this, but 2 more articles when I was searching about this matter I read about sometime ago... Some might find it of interest: http://www.newscientistspace.com/article/dn8836-black-holes-the-ultimate-quantum-computers.html This would likely prove highly controversal, and almost is of a matter we'd need more answers then anything else. Means by which the hypothesis could be tested are presented however... http://www.newscientist.com/article.ns?id=mg18925423.600&feedId=online-news_rss20 |
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Message boards :
LHC@home Science :
Noo work again........
(Message 13324)
Posted 11 Apr 2006 by Nuadormrac Post: Yeah, I'm not sure why this would be posted in the science forum either ;) Just go crunch another project for a few. Besides, some of us had been crunching LHC pretty exclusively while it still had work (though I still have some work left here :D) When done, many of us will be looking to return to our neglected projects, while waiting for more work... |
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43)
Message boards :
Number crunching :
Progress reverted to zero
(Message 13323)
Posted 11 Apr 2006 by Nuadormrac Post: Ahh... I got that problem with Predictor@Home on my WinME box, after I've set my perferences to leave apps. in memory. When another application was running the Predictor CPU time kept increasing and the time to completion went higher even though it wasn't runnning. The problem here is that if it really is running longer because of this (and not just an error in book keeping), it keeps one's CPU pre-occupied when it could move on to crunch other WUs... If it's just reporting incorrect times, but not really running longer, then this wouldn't matter quite so bad. And on winME, I hate to be a bearer of bad news as such, but that OS has issues is about all I can say about it. Perhaps some will not know quite what to say (given some betas have faired better then that OS on shipping), but I had it when the thing was in beta :eek: Anyhow, and let me put it this way. I was an MSDN pro sucriber at the time, and one of the things we got was the CDs mailed to us (also for the operating systems when they hit release candidate status, or even sometimes like with winXP, then Whistler when it was in beta 1). Anyhow, winME was considered so bad, that on the MSDN newsgroups, right up on Microsoft's own site, MSDN (Microsoft developers network) subsribers were very voicterious on how bad it was, and insisted they wouldn't load that thing on any of the development machines, even if the CD came to them at no additional cost. Mind you, these were third party computer programmers and the like that were talking about how they wouldn't load it "for free" even (not really free, but no change in subscription costs), it being so horrid in their estimation... BTW, and as an aside, when I backup a CPDN or seasonal attribution WU, and re-start BOINC, it shows the WU at 0% while it loads the app, but recovers once loaded to the last save point. If this is what's happening, it really isn't an issue I don't think... |
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Message boards :
Cafe LHC :
7th planet
(Message 13295)
Posted 9 Apr 2006 by Nuadormrac Post: LOL Well, just imagine if they ever named a planet Myanus, to go along with Uranus... People could have a lot of fun with that one :rofl |
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Message boards :
Number crunching :
Not HAPPY people.
(Message 13294)
Posted 9 Apr 2006 by Nuadormrac Post: Yeah, I've largely done the same, with the exception of RALPH which had WUs for a few and needed some testing... There's like 10 days before I hit the first deadlines and considering we're now < 40k available units I don't think that'll be an issue... |
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Message boards :
Cafe LHC :
join us guys
(Message 13285)
Posted 9 Apr 2006 by Nuadormrac Post: Nah, sorry, but I already have a team  If you want to start up your own team and entice people to join you; you need to give them something to join. Something such as a focus to the team, why someone would want to join. As an alternative, you might also have some other presence (be it a company, a website, perhaps another web forum that people had visited before creating their own BOINC team, whatever). Perhaps some additions like a website, forum, or other nice extras that they get for joining. If you'd like me to be totally honest, I doubt that many people would simply join a team of 1 member, simply at the asking... |
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Message boards :
Cafe LHC :
How many seconds per point ?
(Message 13284)
Posted 9 Apr 2006 by Nuadormrac Post: You can do your own averages, but given one doesn't get claimed credit, but awarded, there really are too many variables to give a hard and fast number. It's just too affected by what other people claim, and where the average falls. This then gives the average result, that the closer to a high end comp someone has, the more often they'll receive greater then claimed credit, and more infrequently they'll receive less... For instance, if someone is crunching on an FX60!, there are mighty few processors out there that will computer a given amount of work in less time then this monster. Course AMD might have come out with better, but it was the FX60! (and actually over-clocked) that Intel was useing as a baseline, in their own tests to show the sort of improvement Conroe would bring to the table when it's released... If a person has a Pentium III or older, one will probably very seldom to never receive more credit then they claim... There's just no way to isolate one unknown, which would be accross the board and apply to everyone. Now on claimed credit, it would be possible to do the math. Take the length of time the WU ran in seconds, and divide by the awarded credit. The result should be secs/credit... BTW, other things can affect it also. As many already know, Rosetta and RALPH (rosetta alpha) award claimed credit, and establish no quorum). Someone just noted over on the RALPH board that for the same amount of runtime, they noticed their Windows client was claiming more credit then their Linux client and was asking about that. Some were telling him it's more a BOINC thing then a RALPH thing, so don't try to figure that one out. It is possible (based on his observations though), that claimed credit might very some from one OS (say Windows) to another (like Linux)... |
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Message boards :
Number crunching :
Is the user base/project participants growing a bit too large, for our server?
(Message 13282)
Posted 9 Apr 2006 by Nuadormrac Post: If Chrulle joins up with Malaria, should definitely help with their project here. After the time and experience he's had on this project (of which I definitely haven't seen any technical issues crunching for), he's definitely got a lot to offer. Well good luck in your future endevors :) Oh, and yeah, the idea for a newsletter seems somewhat similar to what prompted the creation of the BOINC wikki, with the intent to get various things in one source. Not a bad idea at all... In fact, on my team's site, they ended up creating a forum for project updates, where the various updates from each of the projects can get posted for forum visitors to see. However, that's more in our own forum then a news letter per se... Much like the wikki, this could help get all the announcements centralized to one location. Might also mean less searching about, when for instance trying to get an update on when planet quest will open up to testers and when peeps can start signing up. |
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Message boards :
Number crunching :
Not HAPPY people.
(Message 13281)
Posted 9 Apr 2006 by Nuadormrac Post:
Yeah, it might have gotten back ported to 4.19, which as I remember was an interum release for some projects. After 4.13 I was using the beta CC, not the official release, so might not have looked at 4.19 in the specific... In fact I seem to remember mention of some things having gotten back ported, including retry on downloads or something, that helped, don't remember if it was Rossetta (which I had when it was in beta), predictor, or whatever. Was definitely a while ago however that peeps had this... |
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Message boards :
Number crunching :
Not HAPPY people.
(Message 13266)
Posted 8 Apr 2006 by Nuadormrac Post:
Yeah, but since about 4.45 or somewhere about there (OK, not including the beta versions of the CC), BOINC supported suspending a project. If it does bother one, or perhaps not bother one but seems silly to keep contacting the server when one knows there isn't work, it's only like 2 mouse clicks to suspend the project. The feature set in the newer BOINC CCs already supports the ability for the user to remedy this. Once one knows there's work available, one can re-enable it. In fact, this is exactly what I ended up doing. Observing the pattern in the past, I noticed that we were running close to the end of WUs the project was looking for, so figured new work might be comming. I was a bit late in noticing it, because when I got done today BOINC wasn't exactly the first thing on my mind. Lets just say I had a rotting wisdom tooth, and it caused some gum problems. So the dentist put me on anti-biotics on Monday, and I was saw the oral surgeon today (actually yesterday now). Still only about 12 hours since they surgically cut and drilled the tooth out, so understandably I had other things on my mind getting home... But when I checked back and saw "oh there are 93,000+ WUs", I just re-enabled the project... Actually I'm running little other then LHC now, now that work is available, but now I'll return to my other WUs in the not to distant future. Just don't see an issue with any of this personally. It's the nature of the beast, and what the project needs :cool: |
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Message boards :
Number crunching :
Not HAPPY people.
(Message 13259)
Posted 7 Apr 2006 by Nuadormrac Post: I must say, I joined Rosetta, and the first six or seven units failed. I read up and realized a reboot was a necessity. I detached, (upon a reboot), I will reattach. I have yet to think that the scientific gains could outweigh the minor problems with the project... Granted I haven't rebooted in nearly a month, I will not heed this warning. I think, after seeing a discussion on C-SPAN, this project is incredibly worth while and will only improve in the future. It seems people in this thread have been suspect of the potential for several projects, including LHC, I don't share this negativism. It's interesting no-one has mentioned malaria control.net; they are great in my opinion. Well Malaria is a closed beta at present, so wouldn't be a viable alternative for most, however there are other projects. As to Rosseta, from current indications in RALPH (rosseta alpha project), the remove from memory bug seems to have been worked out from what I'm gathering. Also the % of failed WUs has been reduced, about halved I'm gathering... No notice when the app will make it out of alpha test and into the rosseta project itself. There could be some more app versions that might come out first as well, as rosseta itself is still on 4.82 or so, not 4.93... Speaking of which, I should probably stop by the RALPH boards again, and see what the lattest is from the posters, well beyond the news item updates... Actually, thx for reminding me of this, just checked their site and new work is flowing again on the alpha... Re-enabled WU d/l for now... Might know more about where it's heading and where things now stand in a bit... Edit: Actually it's app version beta 4.97 now, so it might be a little while still before we have the improved app out for you guys |
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Message boards :
Number crunching :
Not HAPPY people.
(Message 13258)
Posted 7 Apr 2006 by Nuadormrac Post: It is my understanding that they are evaluating the results of the last lot of work we did so they can develop the next study. I tend to suspend LHC@home when there is no work and just check this site regularly and reactivate once work appears rather than have my system trying to call for new work all the time. My CPU is crunching either Predictor or Fighting Aids as I write. I am really pleased to think that I have made a contribution, no matter how small, to the development of the LHC. This is what I've done also (well perhaps not the same project mix as you, but with the suspend). I don't see the big deal here. It's not like he can't suspend LHC during long outages and check the site. When it looks like work might be close to comming (aka when the number of WUs out there that haven't been returned come close to 0), one can just check the site a bit more, and when work is announced, resume it... This was one of the features allowed in the newer CCs, and can work well. It isn't like the resources have to be taken during these outages. And peterthomas, may I suggest you never sign up for an alpha or beta project. You'll likely pop a blood vessel if periods of no work bothers you here. I'll have you know that work here is more available then at some projects like RALPH, or pirates for that matter... But that's also the nature of testing, and tbh things really need to be that way, as we're not always needed... It is also why most of us have other projects too ;) Honestly, sign up at CPDN or some other such project if you're that worried about running out of work :D |
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Message boards :
Number crunching :
Work caches
(Message 13257)
Posted 7 Apr 2006 by Nuadormrac Post:
Actually, it would be possible, but not with one CPU core... The quota lists Maximum daily WU quota per CPU But in an SMP box which has more then 1 CPU, or a dual core proc like an A64 X2, which counts as 2 seperate CPU cores, it should, all holding as such allow one to then grab more WUs. Course even with a dual core box, that would be 200 (100 for each CPU core), not 250... I'm rather certain that this is as advertized, and limited per CPU, not user account? With multiple comps in a farm, one could grab more per day... |
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54)
Message boards :
Cafe LHC :
Malaria Control account creation
(Message 13007)
Posted 13 Mar 2006 by Nuadormrac Post: I just missed it by a day, but ya know what they say... Ya snooze, ya lose :rofl Must say though, I would have made it into the Alpha, but well, I closed my browser and said nah for the time. Changed my mind latter, but was too late... Ah well, next time I'll know to create the account when I can, even if I'm not sure whether I'll start crunching right away... In a few days I would have :D I s'pose they'll be increasing their user base again as the beta moves along (possibly) which might give another chance... We'll see :D |
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Message boards :
Number crunching :
Is the user base/project participants growing a bit too large, for our server?
(Message 13006)
Posted 13 Mar 2006 by Nuadormrac Post: I echo the praise for you Ben & Chrulle!!!!!!!!!!!! That others would be interested in using our comps for more work is a good sign :D It means more work could be comming down the pike... BTW, as much as a lul we're in, there is a good side to work having dwindled... It means we've actually accomplished something here, and the fruits of our crunching will see some fruition... As much as we might be waiting for more work, in the end it's the results it brings that matters, and obviously the results which in large measure has already been accomplished... |
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56)
Message boards :
Number crunching :
Is the user base/project participants growing a bit too large, for our server?
(Message 12984)
Posted 11 Mar 2006 by Nuadormrac Post: Well, I mentioned that, because it's the first time I've seen that message; even when SETI for instance was having network issues, or recovered from a long outage due to dBase server issues or whatever... All said though, I know that it wasn't that long since September when I signed up, but as many have noticed, yeah the batches don't last as long. That could possibly be as much a result of increases in users, as it is decreases in work loads. All said however, on another level it might not be so bad that we run outa work (and not due to a technical difficulty), and sorta get used to this, have other projects, etc... I've seen some people on the RALPH (Rosetta alpha project) complain when they've been out of results, and it's almost been an "eh, I crunch over at LHC, you get used to it, just get another project :D " Well either way... Hey River~~, I could well see them either possibly disable (albeit in a temporary manner) LHC@home, or leave it sitting there. As has been mentioned, if they need the resource, our accounts would still be there. However, once they've developed their super-collider, they won't need more analysis leading to it's own development, as it will already be done... There could of course be newer projects along this way, say 10-20 years down the road when they might be looking to build a bigger one. Who knows... That said, if too many years go by, people might have stopped connecting this project, checking news on it, or whatever, so they might be in a position of needing to email the user base to say "we're back up and need crunchers". 4-5 years for instance, could be a long interum with no work needed... |
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57)
Message boards :
Number crunching :
Is the user base/project participants growing a bit too large, for our server?
(Message 12925)
Posted 4 Mar 2006 by Nuadormrac Post: When trying to upload some results, I got a project down message in BOINC 3/3/2006 5:23:06 PM|LHC@home|Sending scheduler request to http://lhcathome-sched1.cern.ch/scheduler/cgi Looking further, I got this from the front page: Server Status Wonder if we're beginning to out-grow the project server here, or if some scripts might be being run, which are loading the thing down? |
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Message boards :
Number crunching :
Unofficial BOINC Wiki closing 2006-03-31
(Message 12914)
Posted 3 Mar 2006 by Nuadormrac Post: Sorry to hear you're leaving... Whether or not it seemed apparent, many of us did notice a tremendous amount of effort you had put into this, and also appreciated it :thumbsup: Well, good luck with whatever you move onto next... I surely can not say that you won't be missed around these parts ;) |
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59)
Message boards :
Number crunching :
going, Going, ........ , GONE.
(Message 12873)
Posted 25 Feb 2006 by Nuadormrac Post: Well, there were a few days of WUs, but this batch went fast. Front page reports that we're outa work again... |
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60)
Message boards :
Number crunching :
how do I join the Beta testers
(Message 12872)
Posted 25 Feb 2006 by Nuadormrac Post: You would have to ask one of the project admins, and they would have to admit you. It would be their choice, as I think one person who asked when there were questions about LHC on the BOINC 5.x clients (when they first came out), was allowed to join... There's nothing you could do without their say so/approval... |
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