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PCL 70 times slower than Ernie with 1000 cars.
- To: CommonLoops.pa@Xerox.COM
- Subject: PCL 70 times slower than Ernie with 1000 cars.
- From: burdorf%taos@rand.org
- Date: Mon, 14 Nov 88 15:19:10 PST
- Redistributed: CommonLoops.pa
I'm sorry to report this sad fact, but Bruce Florman requested that I do
a comparison between ERNIE and PCL with 1000 cars on the carwash simulation.
The timings I got were as follows:
8/28/88 (beta rev 1) AAAI PCL running under Allegro on a SUN 3/60:
cpu time (non-gc) 4198300 msec user, 4966 msec system
cpu time (gc) 673450 msec user, 734 msec system
cpu time (total) 4871750 msec user, 5700 msec system
real time 4932560 msec
ERNIE on a SUN 3/60:
runtime=63070 (the time is in milliseconds)
gctime=0
The timings were about the same for both ERNIE and PCL with 20 cars,
but with 1000 cars, there is no comparision. ERNIE is 78.2077 times
faster!!!
I realize that this is not the final version of PCL. I hope that
this major performance gap can be narrowed in the future.
Chris