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Message boards : Number crunching : CP-boinc model run times.
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 old_user156 Send message Joined: 5 Aug 04 Posts: 186 Credit: 1,612,182 RAC: 0 |
Looks like the difference between minimum and maximum model run times for CP-boinc is a little less than with classic CPDN; <img src="http://cpdn.tuxie.org/uk_nick/Model_run_times.png"> I was regularly seeing up to 10% difference in run times on the same machine running classic CPDN but the maximum I've seen to date for CP-boinc is only 5% - ie. +/-2.5% of the average CPU time. (Computer specs via my sig.) 'Emma', my quickest machine, has only run 6.5 CP-boinc models as yet, so that difference may yet get somewhat larger over the longer term... <a href="http://www.nmvs.dsl.pipex.com/"><img src="http://boinc.mundayweb.com/cpdn/stats.php?userID=6&team=off&trans=off"></a> <a href="http://www.nmvs.dsl.pipex.com/">Distributed Mania</a> |
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Send message Joined: 16 Aug 04 Posts: 156 Credit: 9,035,872 RAC: 2,928 |
Interesting. Do you have more data now? |
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old_user156 Send message Joined: 5 Aug 04 Posts: 186 Credit: 1,612,182 RAC: 0 |
Yeah, I've finished a bunch more models but I'm very busy assembling new machines, modifying my current 'harem' and rebuilding 'oldsters' as hand-me-downs for my younger relatives - I'll get around to posting more up-to-date data eventually. ;-) <a href="http://www.nmvs.dsl.pipex.com/"><img src="http://boinc.mundayweb.com/cpdn/stats.php?userID=6&team=off&trans=off"></a> <a href="http://www.nmvs.dsl.pipex.com/">Distributed Mania</a> |
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old_user17525 Send message Joined: 13 Sep 04 Posts: 161 Credit: 284,548 RAC: 0 |
Well, I hope you're keeping a record of where you're up to with it all. When the php board goes back up it'll be the longest post. Ever ;-) Marj _________________________________ |
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Send message Joined: 30 Aug 04 Posts: 142 Credit: 9,936,132 RAC: 0 |
My results show some <a href="http://climateapps2.oucs.ox.ac.uk/cpdnboinc/results.php?userid=3230">spread.</a> The difference appears at startup. My latest completed model was fastest. It shows an <a href="http://climateapps2.oucs.ox.ac.uk/cpdnboinc/result.php?field=Temperature&resultid=430707&phase=AT#graph">uncommon graph</a> Current model is pretty slow.  Forum search Site search |
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old_user156 Send message Joined: 5 Aug 04 Posts: 186 Credit: 1,612,182 RAC: 0 |
Cool models run faster, I have no idea why... <a href="http://www.nmvs.dsl.pipex.com/"><img src="http://boinc.mundayweb.com/cpdn/stats.php?userID=6&team=off&trans=off"></a> <a href="http://www.nmvs.dsl.pipex.com/">Distributed Mania</a> |
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