Author: Robert Hyatt
Date: 21:29:02 09/05/02
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pos 1cpu 2cpu 2cpu 2cpu 1 153 89 (1.72) 88 (1.74) 90 (1.70) 2 139 90 (1.54) 90 (1.54) 90 (1.54) 3 130 82 (1.59) 87 (1.49) 87 (1.49) 4 176 100 (1.76) 99 (1.78) 100 (1.76) 5 147 95 (1.55) 99 (1.48) 87 (1.69) 6 135 77 (1.75) 77 (1.75) 78 (1.73) 7 92 50 (1.84) 50 (1.84) 50 (1.84) 8 149 104 (1.43) 89 (1.67) 90 (1.66) 9 80 60 (1.33) 62 (1.29) 60 (1.33) 10 155 82 (1.89) 76 (2.04) 75 (2.07) 11 142 80 (1.77) 80 (1.77) 82 (1.73) 12 105 76 (1.38) 76 (1.38) 76 (1.38) 13 149 105 (1.42) 105 (1.42) 107 (1.39) 14 147 104 (1.41) 87 (1.69) 74 (1.99) 15 150 86 (1.74) 86 (1.74) 86 (1.74) 16 159 73 (2.18) 72 (2.21) 72 (2.21) 17 158 97 (1.63) 97 (1.63) 77 (2.05) 18 85 42 (2.02) 41 (2.07) 42 (2.02) 19 125 61 (2.05) 63 (1.98) 103 (1.21) 20 160 112 (1.43) 117 (1.37) 109 (1.47) 21 156 73 (2.14) 62 (2.52) 103 (1.51) 22 77 60 (1.28) 73 (1.05) 60 (1.28) 23 134 93 (1.44) 95 (1.41) 97 (1.38) 24 131 84 (1.56) 82 (1.60) 115 (1.14) average speedup-> (1.66) (1.69) (1.72) OK... some more food for thought. 1. The overall average speedup is "smoother" than I thought. I am going to add the other computational approach to show the average of the 24 speedups, and then the total speedup computed by dividing the sums of the times in the columns... 2. There is a interesting variability. A few positions are pretty much "rock solid" in their times. Like #18, and a few others. A few are all over the spectrum, #24 is one, but others like #14 are really bouncing around too. 3. Each run produces 2-3-4 super-linear speedups, and a couple of positions are consistent. That causes me some concern that move ordering is having problems there and I am interested in the "why" of that... 4. The fail high percent for a wild position seems normal (91% for #14 for example). 5. the fail high percent for the superlinear positions also seems sane. But since a couple of positions do it every time, I'm going to look at some partial trees to see what is up with that. Although super-linear is not unexpected, I am seeing more than I did with CB. Perhaps the fact that CB's evaluation didn't produce these enormous positional scores kept the tree shape more under control, I don't know (yet). 6. It looks like the 1.7X speedup for 2 cpus is pretty solid here as well, as I had seen in the past... I have one more of these running, when it is done I will produce one final table and then maybe queue up 4 of the 3cpu tests and do it again. I am pretty sure the variability will climb with the number of processors... If anyone wants the large raw data logs, let me know, I will save them for a while. If anyone wants to check my eyeball copying of the data, (the times) that would certainly be good, but you will need the raw logs.
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