Author: Robert Hyatt
Date: 17:04:51 09/05/02
Go up one level in this thread
On September 05, 2002 at 00:47:17, martin fierz wrote: >On September 05, 2002 at 00:03:37, Robert Hyatt wrote: > >>Since you seem to like this kind of data, here is another run. Kopec 4. >>It is at the _other_ end of the bad behavior spectrum... >> >>log.001: time=2:15 cpu=99% mat=0 n=45269425 >>log.002: time=1:07 cpu=199% mat=0 n=45786559 >>log.003: time=1:06 cpu=199% mat=0 n=45177069 >>log.004: time=1:05 cpu=199% mat=0 n=45911977 >>log.005: time=1:08 cpu=199% mat=0 n=46238262 >> >>Again, first line is 1 cpu, rest are 2. Hate to let Vincent see that as it >>is "right close" to 2.0 of course. :) >> >>As you can see, some vary wildly, some are rock-solid. Most lie somewhere >>in between those two extremes... >> >>More data coming... > >thanks, this is really interesting. i never realized that SMP searches could be >so variable in some positions and very stable in others. >actually, vincent might like this, because it's >2 speedup :-) > >aloha > martin Don't give up on me yet. I have run the 24 DTS positions Vincent loves with one cpu. I am running them 4 times with 2 cpus. I'll post the raw times tonight and the speedups so we can see exactly what happens. With 2 cpus, the variability is usually lower than with 3 or 4, of course, so I will continue the test with 3 and 4 later... The last couple of 2-cpu tests are running. They take about 1 hour each at 3 minutes per position, 24 positions...
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