Re: [computer-go] Pattern Matcher

["yonik" <yseeley@xxxxxxxxxxxxxxx>]

I tried this on a Opteron in 64 bit mode (RH Linux EL 3), but I get a
segfault.
It looks like the C code isn't 64 bit clean...

I also tried it on a 2.8GHz Xeon running RedHat EL 3.0:
gcc3.2.3 -O2:     1257.7 Kpos/sec
Java 5.0 -server:  1132.4 Kpos/sec

So in this quick test, the java version is 10% slower.

-Yonik

----- Original Message ----- 
From: "John Tromp" <John.Tromp@xxxxxxxxxxxxxxxxx>
To: "computer-go" <computer-go@xxxxxxxxxxxxxxxxx>
Sent: Tuesday, November 09, 2004 8:38 AM
Subject: Re: [computer-go] Pattern Matcher


> PS: it does seem C compilers have improved lately:
>      gcc -O gets
>        95994066 pos / 46619 msec = 2059.1 Kpos/sec
>      while IBMJava2-142 gets
>        95994066 pos / 72105 msec = 1331.3 Kpos/sec
>      on solving the position 4443333 on my AMD Athlon(tm) XP 2700+
machine.
>      So, C is almost 55% faster. More than the 25% gap I noticed a few
years
>      back, but nothing like the "more than 200% gap" Vincent would have
you
>      believe.

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