Author: Rolf Tueschen
Date: 05:01:22 09/06/02
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On September 06, 2002 at 01:32:23, Robert Hyatt wrote: >One quick note. A couple of typos in last table in the 3rd two cpu column. >Got careless as to which file I was looking at and had to re-enter a couple of >the numbers. Plus the 4th 2 cpu run... Similar to the others, with some >better, some worse, speedup is still remaining fairly constant overall. > >The new "aggregate" is simply the sum of the 2cpu times from one column, >divided into the sum of the 1cpu column. This tends to weight the searches >with the longer times more heavily, while the average counts all 24 positions >equally... > >The data:pos 1cpu 2cpu 2cpu 2cpu 2cpu > 1 153 89 (1.72) 88 (1.74) 90 (1.70) 89 (1.72) > 2 139 90 (1.54) 90 (1.54) 90 (1.54) 90 (1.54) > 3 130 82 (1.59) 87 (1.49) 87 (1.49) 82 (1.59) > 4 176 100 (1.76) 99 (1.78) 100 (1.76) 99 (1.78) > 5 147 95 (1.55) 99 (1.48) 87 (1.69) 95 (1.55) > 6 135 77 (1.75) 77 (1.75) 78 (1.73) 77 (1.75) > 7 92 50 (1.84) 50 (1.84) 50 (1.84) 50 (1.84) > 8 149 104 (1.43) 89 (1.67) 79 (1.89) 103 (1.45) > 9 80 60 (1.33) 62 (1.29) 60 (1.33) 50 (1.60) >10 155 82 (1.89) 76 (2.04) 75 (2.07) 81 (1.91) >11 142 80 (1.77) 80 (1.77) 82 (1.73) 82 (1.73) >12 105 76 (1.38) 76 (1.38) 76 (1.38) 75 (1.40) >13 149 105 (1.42) 105 (1.42) 87 (1.71) 107 (1.39) >14 147 104 (1.41) 87 (1.69) 74 (1.99) 93 (1.58) >15 150 86 (1.74) 86 (1.74) 86 (1.74) 86 (1.74) >16 159 73 (2.18) 72 (2.21) 72 (2.21) 99 (1.61) >17 158 97 (1.63) 97 (1.63) 77 (2.05) 107 (1.48) >18 85 42 (2.02) 41 (2.07) 42 (2.02) 40 (2.12) >19 125 61 (2.05) 63 (1.98) 73 (1.71) 61 (2.05) Bob, something is broken here as you can see in number 19. Two times you reported 1.21, what I already had questioned. Here suddenly I see 73 (1.71). Perhaps a reading error? NB I didn't check the other numbers. I just took the usual look for "inconsistencies". Rolf Tueschen >20 160 112 (1.43) 117 (1.37) 109 (1.47) 107 (1.50) >21 156 73 (2.14) 62 (2.52) 103 (1.51) 53 (2.94) >22 77 60 (1.28) 73 (1.05) 41 (1.88) 42 (1.83) >23 134 93 (1.44) 95 (1.41) 97 (1.38) 97 (1.38) >24 131 84 (1.56) 82 (1.60) 115 (1.14) 105 (1.25) > average speedup-> (1.66) (1.69) (1.71) (1.70) >aggregate speedup-> (1.64) (1.66) (1.68) (1.64) > > >This gives a pretty good idea of what I meant by "variability". Some are >solid, some vary significantly... > >More of this tomorrow perhaps...
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