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Null Move Help
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H.G.Muller



Joined: 10 Mar 2006
Posts: 12774
Location: Amsterdam
PostPost subject: Re: Null Move Help    Posted: Sun Feb 12, 2012 5:14 pm Reply to topic Reply with quote
I did some more stats. In stead of just printing the time stats, I let Fairy-Max now also measure the real time, user time and system time, and print those. Unfortunately the latter two are only given in centi-seconds. This should average out, though.

So I played some 40/10sec games with different settings, to see not only the delay between sending a move, and the opponent receiving it, but also how much CPU the GUI (well, all other processes really, but nothing was running) was stealing away from the engine.

The result was that the delay is virtually independent of GUI settings, and almost always 1 msec. As I took histograms, I can look at the worst case as well as the average, and there are just a few very large delay. Inspecting the debug file it turns out these all occur at the end when the engines are mated: they move instantly in that case, so that GUI processing which normally can be done in parallel with the engine thinking now results in a delay. This is to be expected, and not really a problem.

A for the time stolen from the engine (compare to an average time per move of 250 msec):

Code:
90 msec: 72x72, EO, SAN
84 msec: 33x33, EO, SAN
61 msec: 33x33, hide thinking
 6 msec: noGUI
 4 msec: noGUI, nopost


NxN = square size
EO = engine output window open
SAN = PVs were converted to SAN
hide thinking = no PVs printed above the board
nopost = engine did not send thinking output (no scores in PGN)

The raw numbers are below:

Code:
-size 33, engine-output, SAN
delay
  0.     21
  1.    120
  2.      3
  3.      2
  4.      1
122.      1
134.      1
152.      1
156.      1
usage (avg = 84)
  0.      2
 12.      1
 16.      1
 30.      1
 34.      1
 36.      1
 46.      1
 48.      1
 50.      1
 56.      1
 60.      2
 62.      3
 64.      1
 66.      1
 68.      3
 70.      5
 72.      5
 74.      7
 76.      6
 78.      4
 80.      8
 82.      9
 84.      6
 86.      7
 88.      9
 90.      9
 92.     10
 94.      7
 96.      3
 98.      6
100.      6
102.      7
104.      4
106.      2
110.      2
112.      1
116.      2
120.      1
124.      1
128.      1
140.      1

-size 72, engine-ooutput, SAN
delay
  0.     15
  1.     94
  2.      2
140.      1
146.      1
151.      1
usage (avg = 90)
  0.      1
  2.      1
 14.      1
 68.      3
 70.      1
 72.      2
 74.      1
 76.      1
 78.      4
 80.      9
 82.      7
 84.      8
 86.      4
 88.      9
 90.      8
 92.      4
 94.      6
 96.      6
 98.      4
100.      6
102.      5
104.      4
106.      3
108.      6
110.      3
112.      1
114.      2
122.      1
124.      1
130.      1

-noGUI
delay
  0.     18
  1.    146
  2.      3
usage (avg = 6)
  0.     15
  2.      7
  4.     24
  6.     26
  8.     14
 10.     21
 12.     17
 14.      7
 16.      6
 18.      1
 20.      1
 22.      1
 24.      1

-noGUI, nopost
delay
  1.     64
  2.      6
 14.      1
usage (avg = 4)
  0.      9
  2.      6
  4.      8
  6.      3
  8.      5
 10.      5
 12.      6
 14.      3
 16.      1
 28.      1
 32.      1

-size 33, no EO, hide thinking
delay
  0.      6
  1.    124
  2.      5
 13.      1
usage (avg = 61)
  0.      2
 10.      1
 20.      1
 46.      1
 48.      3
 50.      5
 52.      6
 54.     12
 56.     18
 58.     10
 60.     20
 62.     11
 64.     12
 66.     18
 68.      1
 72.      4
 74.      2
 76.      2
 78.      1
 84.      1
 90.      1
106.      1
110.      1
170.      1
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Display posts from previous:   
Subject Author Date/Time
Null Move Help Steve Mulligan Sun Feb 05, 2012 10:09 pm
      Re: Null Move Help Sven Schüle Sun Feb 05, 2012 10:36 pm
      Re: Null Move Help Robert Purves Sun Feb 05, 2012 10:38 pm
      Re: Null Move Help Steve Mulligan Sat Feb 11, 2012 9:19 am
            Re: Null Move Help Lucas Braesch Sat Feb 11, 2012 11:23 am
                  Re: Null Move Help Steve Mulligan Sat Feb 11, 2012 8:06 pm
                        Re: Null Move Help Tony Mokonen Sun Feb 12, 2012 1:01 am
                              Re: Null Move Help Lucas Braesch Sun Feb 12, 2012 1:14 am
                                    Re: Null Move Help Patrik Karlsson Sun Feb 12, 2012 9:06 am
                                          Re: Null Move Help Tony Mokonen Sun Feb 12, 2012 9:59 am
                                                Re: Null Move Help Lucas Braesch Sun Feb 12, 2012 10:32 am
                                                      Re: Null Move Help Tony Mokonen Sun Feb 12, 2012 11:16 am
                                                            Re: Null Move Help Lucas Braesch Sun Feb 12, 2012 11:39 am
                                    Re: Null Move Help H.G.Muller Sun Feb 12, 2012 12:07 pm
                                          Re: Null Move Help Lucas Braesch Sun Feb 12, 2012 12:31 pm
                                                Re: Null Move Help H.G.Muller Sun Feb 12, 2012 12:49 pm
                                                      Re: Null Move Help H.G.Muller Sun Feb 12, 2012 1:48 pm
                                                            Re: Null Move Help Lucas Braesch Sun Feb 12, 2012 1:56 pm
                                                                  Re: Null Move Help H.G.Muller Sun Feb 12, 2012 2:02 pm
                                                            Re: Null Move Help H.G.Muller Sun Feb 12, 2012 5:14 pm
                                                                  Re: Null Move Help H.G.Muller Sun Feb 12, 2012 9:07 pm
                                                                  Re: Null Move Help Evert Glebbeek Sun Feb 12, 2012 10:15 pm
                                                                        Re: Null Move Help H.G.Muller Mon Feb 13, 2012 9:46 am
                                                                              Re: Null Move Help Evert Glebbeek Mon Feb 13, 2012 1:19 pm
                                    Re: Null Move Help Steve Mulligan Sun Feb 12, 2012 2:32 pm
                                          Re: Null Move Help Lucas Braesch Sun Feb 12, 2012 3:51 pm
                                                Re: Null Move Help Steve Mulligan Tue Feb 21, 2012 10:15 pm
                                                      Re: Null Move Help Robert Purves Tue Feb 21, 2012 11:00 pm
                        Re: Null Move Help H.G.Muller Sun Feb 12, 2012 12:03 pm
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