Message boards : Number crunching : Is that possible? (inside)
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Send message Joined: 12 Aug 05 Posts: 9 Credit: 1,164,760 RAC: 0 |
Time Sent (UTC) Host ID Result ID Result Name Phase Timestep CPU Time (sec) Average (sec/TS) 16 Aug 2007 10:52:58 297298 6700687 hadcm3inct_cni4_1920_160_75870664_1 1 440,640 1,148,109 2.6055 16 Aug 2007 10:52:58 297298 6700687 hadcm3inct_cni4_1920_160_75870664_1 1 414,720 1,080,665 2.6058 16 Aug 2007 10:52:58 297298 6700687 hadcm3inct_cni4_1920_160_75870664_1 1 388,800 1,013,473 2.6067 16 Aug 2007 10:52:58 297298 6700687 hadcm3inct_cni4_1920_160_75870664_1 1 362,880 945,979 2.6069 16 Aug 2007 10:52:58 297298 6700687 hadcm3inct_cni4_1920_160_75870664_1 1 336,960 878,185 2.6062 16 Aug 2007 10:52:58 297298 6700687 hadcm3inct_cni4_1920_160_75870664_1 1 311,040 810,794 2.6067 16 Aug 2007 10:52:58 297298 6700687 hadcm3inct_cni4_1920_160_75870664_1 1 285,120 743,449 2.6075 16 Aug 2007 10:52:58 297298 6700687 hadcm3inct_cni4_1920_160_75870664_1 1 259,200 675,504 2.6061 16 Aug 2007 10:52:58 297298 6700687 hadcm3inct_cni4_1920_160_75870664_1 1 233,280 607,817 2.6055 16 Aug 2007 10:52:58 297298 6700687 hadcm3inct_cni4_1920_160_75870664_1 1 207,360 540,892 2.6085 16 Aug 2007 10:52:58 297298 6700687 hadcm3inct_cni4_1920_160_75870664_1 1 181,440 473,281 2.6085 16 Aug 2007 10:52:58 297298 6700687 hadcm3inct_cni4_1920_160_75870664_1 1 155,520 405,681 2.6085 16 Aug 2007 10:52:58 297298 6700687 hadcm3inct_cni4_1920_160_75870664_1 1 129,600 337,638 2.6052 16 Aug 2007 10:52:58 297298 6700687 hadcm3inct_cni4_1920_160_75870664_1 1 103,680 270,346 2.6075 16 Aug 2007 10:52:58 297298 6700687 hadcm3inct_cni4_1920_160_75870664_1 1 77,760 203,124 2.6122 16 Aug 2007 10:52:58 297298 6700687 hadcm3inct_cni4_1920_160_75870664_1 1 51,840 135,938 2.6223 16 Aug 2007 10:52:58 297298 6700687 hadcm3inct_cni4_1920_160_75870664_1 1 25,920 68,262 2.6336 taken from http://climateapps2.oucs.ox.ac.uk/cpdnboinc/result.php?resultid=6700687 and the other his stats also very strange http://climateapps2.oucs.ox.ac.uk/cpdnboinc/result.php?resultid=6604808 |
Send message Joined: 7 Aug 04 Posts: 2186 Credit: 64,822,615 RAC: 5,275 |
I assume what you think appears strange is the large number of trickles accumulated on a single day? Looking at http://climateapps2.oucs.ox.ac.uk/cpdnboinc/trickle.php?resultid=6604808 it would seem that the PC is only allowed to connect to the internet periodically, so large numbers of trickles are uploaded upon these connections. It seems OK to me. |
Send message Joined: 12 Aug 05 Posts: 9 Credit: 1,164,760 RAC: 0 |
Hmm, I began thinking that is was cheating or something... |
Send message Joined: 9 Jan 07 Posts: 467 Credit: 14,549,176 RAC: 317 |
Sometimes, if you look at the top computers list, you\'ll see machines that have a huge but short-lived RAC due to uploading trickles in batches. One one occasion, there was a machine that had uploaded all 160 trickles in one go! That\'s slightly risky, because the server might conclude that the model had been abandoned and would then re-issue it for another user to crunch. However, the machine did get its moment of glory. |
Send message Joined: 29 Sep 04 Posts: 2363 Credit: 14,611,758 RAC: 0 |
AFAIK the only instance of cheating ever to emerge on cpdn was the Wate account earlier this year, though something similar was attempted once or twice before that on Seti. We made the Wate affair public in the hope that crunchers of all projects would be vigilant and question anything they find that appears unusual and not easily explained. So this sort of post by Tasiziso is reasonable and useful. Cpdn news |
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