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Questions and Answers : Windows : Very slow CPU
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Send message Joined: 8 Mar 05 Posts: 17 Credit: 114,685 RAC: 0 |
The low speed CPU can\'t finish WU before report deadline? Pentium 3 1Ghz WinXPHome Running time of the day : about 2Hours |
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Send message Joined: 10 Oct 04 Posts: 223 Credit: 4,664 RAC: 0 |
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. __________________________________________________ |
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Send message Joined: 5 Aug 04 Posts: 85 Credit: 2,924,043 RAC: 0 |
On a P4-1.6GHz, it takes around 800 to 850 hours to process a WU. A rough estimation for your processor would be around 2400 hrs ... |
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Send message Joined: 8 Mar 05 Posts: 17 Credit: 114,685 RAC: 0 |
Thanks. hadsm completed simulation by 0.01% every about 15 minutes(CPU time). My PC cannot turn on for 24 hours. (Because my family didn't agree it) |
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Send message Joined: 10 Oct 04 Posts: 223 Credit: 4,664 RAC: 0 |
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. __________________________________________________ |
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Send message Joined: 8 Mar 05 Posts: 17 Credit: 114,685 RAC: 0 |
I gave it up. Thanks for your advice. |
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Send message Joined: 16 Aug 05 Posts: 6 Credit: 51,204 RAC: 0 |
> 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. > __________________________________________________ > > > I have a slow computer too (host 209897). It's running a couple of hours each day. But most of the days it doesn't seems to reach a commit point. That's why it starts at timestep 1080 again every day. That's why I take your advice and I quit CPDN for this host, so don't expect any results for WU 180553. Roel |
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