21) Questions and Answers : Windows : Very slow CPU (Message 15153) Posted 17 Aug 2005 by old_user23880 Post: Belgix, if your estimates for Nanoha are reasonable, at 2 hours per day a model would take more than 3 years to finish. Even longer if the model is losing timesteps when it is turned off. Boinc cpdn doesn't, I think, allow models to last so long; the model would automatically terminate before completion. Also, in 3+ years the probability of having a computer problem must be quite high. This sort of unfinished model is unfortunately not useful for the research team. Nanoha, my advice would be to detach from cpdn and join a different boinc project with much shorter work units. The cpdn WUs are the longest and biggest. You can always join cpdn again in the future when you have your own computer at home or at work. __________________________________________________

22) Message boards : climateprediction.net Science : Any public reports in the pipeline (Message 15131) Posted 15 Aug 2005 by old_user23880 Post: Hi Rick If you would like to look in on and join the climate and science discussions on the cpdn php forum (the middle link of the 3 on the message board page), you will be most welcome. There's always a lot of discussion of publications there because the forum format is more flexible for users. __________________________________________________

23) Questions and Answers : Windows : Very slow CPU (Message 15130) Posted 15 Aug 2005 by old_user23880 Post: When did you start and how far have you got? One way of doing more - when the weather gets colder in the autumn, you could leave the computer on all the time you are at home (you don't need to be connected to the internet). That way, the heat from the computer will help to heat your house or flat, and won't be wasted. __________________________________________________

24) Questions and Answers : Windows : Possible bug - exit code -5 when processors busy with other tasks (Message 14998) Posted 9 Aug 2005 by old_user23880 Post: Hi Peter Exit code -5 means a calculation error of some sort. It is a known problem - the people in Oxford do know about it. When this happens, it's just as well that the model aborts. Geophi is right in saying that of all the boinc projects, cpdn is the most sensitive to any problems. Did your machines previously complete whole cpdn models? If they did, then why not just back off cpdn while you're doing the university work, while continuing the other boinc projects? Then come back to cpdn later? Because..........some people have spent quite a lot of time getting round this -5 error. As in your case this is probably just a temporary problem, it wouldn't be worthwhile to spend time on it. __________________________________________________

25) Message boards : Number crunching : I Love this Project...!!! (Message 14724) Posted 29 Jul 2005 by old_user23880 Post: You might also like to look at the ongoing discussion in the cpdn php forum, where there's an ongoing conversation on this topic in the Participation in the Experiment section. It's called Just Recalculated a lot of Credits. __________________________________________________

26) Message boards : Number crunching : I Love this Project...!!! (Message 14718) Posted 29 Jul 2005 by old_user23880 Post: Hi again I've just had a look at your results. Is that a whole farm/herd you've got there? Pity the machines are hidden! I can see why you want to rack up the credits. Everybody does always say that they get the right credit in the end. __________________________________________________

27) Message boards : Number crunching : I Love this Project...!!! (Message 14716) Posted 29 Jul 2005 by old_user23880 Post: Carl and Tolu have been doing a lot of work in Oxford to sort out problems with credits and other things. Your credit should sort itself out without you having to do anything. What really matters to the researchers is completing the models. Are your machine and its model both behaving? __________________________________________________

28) Message boards : Cafe CPDN : Switching to renewable energy (Message 14609) Posted 23 Jul 2005 by old_user23880 Post: Hi again When the gas and electricity supply industry in the UK was first privatised, some of the new companies engaged in very dubious practices to gain new customers (some people found themselves suddenly contracted to a different company because they'd spoken to a salesman at the door). This has led to a level of consumer suspicion and fear of changing company. Some companies have a well-publicised reputation for poor customer service, so people are also afraid that if they change company, they will suffer from this. There are, however, several websites some of which are genuinely independent where you can compare tariffs and service reputation. When I looked for myself recently for both gas and electricity, none of the green tariffs were among the cheapest. From what Martin said, it would also be worth looking at the green policy of each particular company. According to Martin, if more people switch to green than there is supply, the companies would be obliged to increase the green supply to that level. In the UK, on many tariffs, the more electricity or gas you use, the cheaper each unit becomes. If this was reversed, it would encourage people to use less. I don't think that the companies would like the idea much, though; private companies generally want to sell more, not less! __________________________________________________

29) Message boards : Cafe CPDN : Switching to renewable energy (Message 14583) Posted 22 Jul 2005 by old_user23880 Post: Hi Christian I live in the UK where there are lots of different electricity companies which supply to the public, all privatised and in competition with each other. Each company offers a selection of tariffs which are effectively in competition within the company. The electricity is, however, as far as I know, produced by separate and different generating companies. The electricity that they generate then all gets fed into a national grid of powerlines. I assume that in the powerlines the electricity from all the sources (nuclear, coal, wind etc) then gets totally mixed up. So it seems to me that whichever tariff you choose from whichever company, the composition of the electricity you actually get is exactly the same - a complete mixture. If you choose a green tariff, you get the same mixed-source electricity as your neighbours next door who have chosen a normal, cheaper tariff. If this were not the case, they would need powerlines like telephone cables which can magically keep all the phone calls separate and not mixed up. Or green tariff customers would need a separate system of powerlines. This has not happened. I can see that nobody has dug up the streets to install new cables. My impression is that, in the UK at least, the green tariffs are a way of persuading a minority of ecologically-motivated customers to voluntarily pay more in order to finance new green projects. Ideally, all customers should be contributing to these developments. Have I completely misunderstood a lot of things? __________________________________________________

30) Message boards : Cafe CPDN : Why slow down Fossil Fuel consumption? (Message 14371) Posted 15 Jul 2005 by old_user23880 Post: I do love Cadillacs and can see the point of using almost any old car until it dies even if it does only do 10mpg because so much fossil fuel is used in the production of new cars. I cannot, however, see the point of buying a new SUV unless this type gas-guzzling vehicle is essential eg for one's work. Surely we should be choosing the smallest and most efficient car for our needs in order to conserve the remaining supplies of fossil fuels for as long as possible while the technology for new clean types of energy is developed? Kinhull, in a number of places where the desert has been irrigated big-time to produce vegetables, fruit or cotton, this has resulted in a serious lowering of the water table. This happens if the water used is pumped up from underground deposits; it is fossil water that has been there for thousands of years, and because the area has low precipitation, it hardly gets replenished. In Israel the water table has fallen so much that sea water is seeping into the underground water and making it salty. In the Lake Baikal region, over-extraction of water for irrigation has caused an environmental disaster. Along the Nile they have been using river water for irrigation for thousands of years, and most of the fields would otherwise be desert, but they're limited to the water that's actually there. The limitation of supplies and depletion of water resources leads to international disputes (Portugal-Spain, Turkey-Iraq, India-Pakistan, Israel-Palestine, Egypt-Sudan etc). __________________________________________________

31) Message boards : Number crunching : \"has losing 88 hours a loss to climate?\" (Message 14287) Posted 11 Jul 2005 by old_user23880 Post: Hi Doug As you say your machine is now crunching a new model, it looks as if the previous one went down the pan, which is most unfortunate. When you turn off your machine you should suspend then exit the model first, giving the model plenty of time to do this. Otherwise the model can crash. I don't know whether this was your problem, it's just a possible idea. It's also a good idea to back up your current model from time to time so that if something goes wrong, you have some chance of restoring it. Commiserations. Stick in there with us! __________________________________________________

32) Message boards : Number crunching : Documentation News (Message 14065) Posted 3 Jul 2005 by old_user23880 Post: A big advantage of your explanations is that you don't assume that everyone is an expert and already understands the lingo. __________________________________________________

33) Message boards : Number crunching : Documentation News (Message 14026) Posted 3 Jul 2005 by old_user23880 Post: You have been doing a lot of work for everyone's benefit, Paul. __________________________________________________

34) Questions and Answers : Windows : Hadsm3 4.12 errors after latest Windows 2000 update (Message 13983) Posted 29 Jun 2005 by old_user23880 Post: FWIIW Danny, the recent Windows security & other updates for my 2000Pro haven't created any problems that weren't already there. __________________________________________________

35) Questions and Answers : Windows : Hadsm3 4.12 errors after latest Windows 2000 update (Message 13982) Posted 28 Jun 2005 by old_user23880 Post: Thanks for all these most useful posts + the link to Gareth's page about keeping cool. This has made me wonder whether my machine's repeated failures with boinc cpdn (I reverted to classic) might not, as I thought, be due to the Athlon's way of doing the calculations, but instead be caused by overheating. I also have a Gigabyte and I dare not publicly reveal what the temp was when it unexpectedly appeared on the screen. Don't think I'm capable of personally doing anything about it, but I'm keeping note of all of this for the future rebuild........ __________________________________________________

36) Message boards : Cafe CPDN : Competition (with prize): design a T shirt (Message 13903) Posted 26 Jun 2005 by old_user23880 Post: I for one would like to wear a cpdn t-shirt. I wonder whether, if the competition produces a really good design, it could lead to sales from the Oxford Uni shop, like the mugs. That's really just a thought for later on. __________________________________________________

37) Message boards : Number crunching : Main forum down? (Message 13902) Posted 26 Jun 2005 by old_user23880 Post: Thanks for the explanations. Looks like a useful extra piece of equipment for computers working 24/7. The automated backup type sounds better. This is the first time after a weekend cpdn server outage in England that reconnection has happened during the same weekend AFAIK. __________________________________________________

38) Message boards : Number crunching : It\'s all gone HORRIBLY Wrong! (Message 13901) Posted 26 Jun 2005 by old_user23880 Post: When you turn your machine off, are you suspending the model and exiting before you switch off? And giving it plenty of time to do this? Boinc cpdn doesn't like being sent to bed too quickly. __________________________________________________

39) Message boards : Cafe CPDN : Good News, Trickles and Credits working again! (Message 13858) Posted 26 Jun 2005 by old_user23880 Post: .........which, if the Gulf Stream shuts down, can be decorated with glacé cherries and washed down with German Eiswein. __________________________________________________

40) Message boards : Cafe CPDN : CPView for BOINC (Message 13857) Posted 26 Jun 2005 by old_user23880 Post: Good to see you there, Martin. Your contribution is highly appreciated. __________________________________________________

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