Posts by KeeperC

21) Message boards : climateprediction.net Science : no graphics. (Message 10693) Posted 11 Mar 2005 by KeeperC Post: > In a Work Tab of BOINC 4.19, right-click on CPDN current working unit - 'Show > graphics' should appear. > Ceri, If you are doing what Honza suggests and all you get is an empty window where the graphics should appear, it is possibly because your graphics driver doesn't support OpenGL or is somehow corrupted. Try upgrading to the latest graphics drivers. KeeperC
22) Message boards : Cafe CPDN : CPDN WOWmugs are available to buy! (Message 10359) Posted 4 Mar 2005 by KeeperC Post: Just ordered 2 mugs! I hope I'll be able to make it to the next open day.
23) Message boards : Cafe CPDN : Main CPDN boards down? (Message 10113) Posted 28 Feb 2005 by KeeperC Post: > Quo usque tandem abutere, Hannah, patientia nostra? > Cui bono? O tempora,o mores! > Only recollection of Latin 'O' level: Tandem is a bicycle "at length"!
24) Message boards : Number crunching : exit code -1073741502 (0xc0000142) (Message 9997) Posted 25 Feb 2005 by KeeperC Post: > Thanks for the info. > The knowledge data base is handy. > SO! Windows problem. I guess it's now up to the users to solve. > > Les > > > Does this mean it is a windows problem? CPDN uses at least one DLL, and it may be this that failed to initialise. Perhaps a re-install may work?
25) Message boards : Cafe CPDN : EU outlines post-Kyoto strategy (Message 9973) Posted 25 Feb 2005 by KeeperC Post: > Yesterday - February 2 - Posted 24th Feb. Wow! That's a bigger timewarp even than than the one that Oxford sits in!!!
26) Message boards : climateprediction.net Science : KYOTO & the US (Again) (Message 9616) Posted 20 Feb 2005 by KeeperC Post: > increasing use of non-renewable energy. The energy intensity of GDP is falling > by 1.7% a year Is this a global figure or for western economies only? If western only, it would seem only to reflect the export of manufacturing and other primary industries to developing nations. I doubt energy intensity of GDP is declining globally. Presumably, across most of the developing world it is increasing rapidly.
27) Message boards : climateprediction.net Science : Gloom \'n doom scenario (Message 9555) Posted 19 Feb 2005 by KeeperC Post: > The only good statistic is that per capita CO2 has not > increased significantly since the 1970's in the US, Europe or the world as a > whole. > This only looks good. In reality, this is true only because US, Europe and other developed nations are already consuming unsustainable levels of energy and in the rest of the world continued population growth is overwhelmingly producing desperately poor people with almost no access to energy at all. These energy poor people just about counteract the effect of consumption growth in China, India and the like. Also, unfortunately, the Earth's resources do not scale with population.
28) Message boards : Number crunching : May Project reject hosts? (Message 9508) Posted 18 Feb 2005 by KeeperC Post: > > I seem to recall that there is the facility in BOINC for the server to > refuse > > to allocate WUs to a client with less than the minimum CPU specification, > just > > as it does now if there is insufficient disk space. My concern is whether > the > > project has sufficient information on which to base that limit. Set it > too low > > and it will do little good. Set it too high, and you will rightly get > > complaints from people who have spent xx months completing a run and who > are > > then told that their help is no longer welcome. It would be sensible to > set > > limits on participation in the coupled ocean or even sulphur experiments, > as > > Les Bayliss suggested, but less powered machines would not be excluded by > that > > from participating altogether. And we would still have the problems of > the > > powerful machines that are still not able to run CPDN, as Les also points > out. > > > > So it seems for me that there exists only one way to solve this kind of > problem: Hosts that causes wus to crash permanently and that never send back > trickles are most likely to not fulfil the minimum hardware requirements and > should therefore locked out at least temporary from getting further work > units. > > But on thinking about this I'm asking is this really a serious problem? > Perhaps, but perhaps not. > > ciao, tom > Boinc runs exponential backoff when clients fail to connect to servers to prevent a massive buildup of pent up comms demand swamping the servers when they come back up. Could the maximum number of WU also be made to back off exponentially? I.e. five today, only three tomorrow, just one the next day, another one two days later, and no more for a week, etc. This way, machines that simply chew up WUs would soon be timed out for quite long periods. On the other hand, machines with temporary problems that are quite quickly fixed would soon get back on track.
29) Message boards : Cafe CPDN : some stats and predictions (Message 9285) Posted 14 Feb 2005 by KeeperC Post: > With the recent burst of new users, cpdn has now overtaken seti@home in the > BOINC recent credit stakes, but cpdn is still far behind in number of users, > number of machines and number of team. cpdn now has 49.4% of the total recent > credit. > > My estimate for 70,000 runs completed is 1 March, and for 100,000 is late May. > By end of February we should have just under 40,000 trickling computers. > Hopefully publicity about THC experiment results, launch of sulphur cycle and > experiment 2 will push the number of trickling machines above 50,000 by June. > Is any of this recent credit the result of the so-called credit lottery?
30) Message boards : Number crunching : Amy/Stacey/Jayne - The Final Phase 3 Results (Message 9016) Posted 9 Feb 2005 by KeeperC Post: > This is really interesting experiment. > Comparing Intel P4 Northwood (512kb cache) with Intel Prescott (1MB cache) and > AMD64 Clawhammer gives slightly different results on average temperature; > seasonal temperature maps shows larger difference. > There are a lot of other CPU types to run (AMD XP, AMD64 Winchester, mobile > Pnetium etc.) and yes, some overclocked machines as well. > It would be also interesting to re-run models if we get same resuls - and i, > somehow, doubt that results will be the same. > > Some guru programmer feeback may also put light to there results... > Pete B has done a great job of running this comparison and including geophi's results. Honza suggests that we might look at a whole host of other cross machine comparisons. My question is this: Have we already run any of these comparisons as part of the standard experiment? If so, could the Oxford team release results from a few of them to volunteers to look at like Pete B has done in this case?
31) Questions and Answers : Windows : Error 113 (Message 8981) Posted 9 Feb 2005 by KeeperC Post: > > > I am still not sure what I should put in the 'trusted zone' in my > > ZoneAlarm > > > Pro firewall--I don't think climateprediction.com is the site my > machine > > is > > > reaching out to for uploads and/or downloads. > > > > As far as I know the upload server list is still the one posted <a> > href="http://climateapps2.oucs.ox.ac.uk/cpdnboinc/forum_thread.php?id=1208&post5913#5913">here</a> > > by Carl. Specifying a list of allowed servers is okay, but it won't > cater for > > any servers that are added in the future. If possible it's probably > better to > > open up port 80 for the BOINC program you're running. > > >Thanks, Thyme. I went to Carl's server list and added them to ZA's > 'trusted zone' and RPC's are working fine--requests, trickles, downloads. > Opening port 80 would be cleaner, but I wouldn't know how or if I was > protecting it. > I don't think you need to put the CPDN servers into Zone Alarm's trusted zone - I don't. This just gives them more access to you than you probably want to give. Just leave them in the internet zone. Also, you don't need to open any specific port - zone alarm handles that for you. All you need to do is allow BOINC to communicate with the internet (no need to allow server priviledges, although it will ask). You can do this manually, or answer the question Zone Alarm asks the first time Boinc tries to communicate. Actually, you must already have done this since you have trickled twice already.
32) Message boards : Number crunching : All options Of the Graphic Display Mode ?? (Message 8976) Posted 9 Feb 2005 by KeeperC Post: > > Some are listed in the FAQ. But there are others like x and b. > > > yes i know but there are hiden options > I can only imagine why x (physical relief) is a hidden option! ;)
33) Message boards : Number crunching : Prices for Climate or other Boinc projects ?? (Message 8975) Posted 9 Feb 2005 by KeeperC Post: > When we can eventually buy the mugs, they will be even better than > certificates. You can only have 1 certificate in 1 place, because multiple > copies would look like fakes. If you boast too much about your own > certificates, this can appear arrogant or boring. Few people will say 'WOW!' > > But we will be able to buy multiple mugs, openly advertising both cpdn and our > own superior capabilities without needing to say a word. The mugs will solve > dilemmas about birthday presents for both children and adults for a whole > year. The elegant design will attract the attention of aesthetes, and everyone > who ever has a hot drink will be amazed by the heat sensitivity. Everyone will > say 'WOW!' > > The photos of them are unfortunately on the phpbb forum. > > > But does anyone actually have any idea when, exactly, these mugs will become available and who is sourcing them for us?
34) Message boards : Number crunching : Prices for Climate or other Boinc projects ?? (Message 8922) Posted 8 Feb 2005 by KeeperC Post: > do they exist like in old seti@home there you can print a certificate of your > calculatet wus i only whant know do it too exist for Boinc projects? > The Statsfreakz site offered certificates for completion of workunits at various levels on CPDN Classic: http://www.statsfreakz.net/climate_prediction/certificates.php I'm not aware of any equivalent for Boinc, but there may well be some generic (not CPDN specific) provider of something similar.
35) Message boards : Number crunching : What's your lowest s/TS? (Message 8817) Posted 7 Feb 2005 by KeeperC Post: > > > > > Slab SM3 = Experiment 2, simulating 1950-2000? > > > yes, see <a> href="http://www.climateprediction.net/science/strategy.php#exp_2">here</a> > for experiment strategy > Except that Expt 2 uses a coupled oceam model, CM3, requiring up to an order of magnitude more processing.
36) Message boards : climateprediction.net Science : Article in Wired Magazine (Message 8334) Posted 1 Feb 2005 by KeeperC Post: > There's an interesting article on the computing side of CPDN in <a> href="http://www.wired.com/news/technology/0,1282,66424,00.html?tw=wn_4techhead">Wired > Magazine</a>. A bit short on the science side, but they were bound to take a > different angle. > Quote: "(Climateprediction.net) is the one that runs on my computer," said Anderson. Thats quite an endorsement!
37) Message boards : Cafe CPDN : Main CPDN boards down? (Message 7924) Posted 28 Jan 2005 by KeeperC Post: > > It's absolutely crucial that we get the cpdn forum back up and running > > regardless of the technicalities. > > If one of those technicalities is bringing down KMi and maybe even the Open > University, then I'm afraid I can't agree. > > Sorry. > > Dave > But it is hard to have such a long outage, especially when one of the reasons we like CPDN is the excellent forum. Also, it is very bad timimg given all the recent publicity. I'm sure you and the OU are doing all you can. From our point of view, though, I agree with Graham - this is urgent!
38) Message boards : Number crunching : backup and restore WU (models) (Message 7466) Posted 22 Jan 2005 by KeeperC Post: > Sorry KeeperC, but your Link to the Treat does not function, can you give me > the Path, so i can go there manualy ? The path is to a page in the CPDN PHP forum. Unfortunately, because of a security risk, that forum has temporarily been taken offline. I hope that it will be back soon, and then the link should work. I can't remember the link to the download utility directly.
39) Message boards : Number crunching : backup and restore WU (models) (Message 7438) Posted 21 Jan 2005 by KeeperC Post: > You need to stop the service; otherwise there will be write locks on some > files. I don't know the command line way of stopping & starting a > service, but I know there is one. > > A restore is as easy as stopping the service, and overwritting the BOINC > directory with your backup, and starting again. > > Personally I only backup after every phase, so I do it manually. > The utility I use stops the application using RPC (what ever this is), makes the backup, then restarts the application. I assume, but don't know, that this is true if it is running as a service, too. I don't run CPDN as a service.
40) Message boards : Cafe CPDN : CPDN Website time slow by 36 mins approx (Message 7425) Posted 21 Jan 2005 by KeeperC Post: This is a strange issue, though. When I post a message to this board, it is immediately recognised as 35 minutes old! So the Board is using two clocks - one to timestamp and one to recognise the time?

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