hello?

Alexandre Petit-Bianco apbianco@cygnus.com
Fri Oct 9 16:59:00 GMT 1998


Tom, 
> So for this example the compiled code is 3x as fast.

This is on our Yorick machine, after I got Linpack to compile in -O2,
debug turned off and no array bounds checking:
 % CLASSPATH="jdk/lib/classes.zip:." jdk/bin/java Linpack
 Mflops/s: 1.94 Time: 350 msecs Norm Res: 1.33 Precision: 2.220446049250313E-16
 Mflops/s: 1.94 Time: 350 msecs Norm Res: 1.33 Precision: 2.220446049250313E-16
 % Linpack-no-bounds-check 
 Mflops/s: 22.151 Time: 29 msecs Norm Res: 1.14 Precision: 2.22045e-16
 Mflops/s: 22.889 Time: 29 msecs Norm Res: 1.14 Precision: 2.22045e-16
Yorick is a Linux 686/299BogoMips box with 128MB RAM. Similar
speed-up was shown at the ESC Europe demo, wrapped around some
graphics.
-- Alex (www.cygnus.com/~apbianco, apbianco@cygnus.com)


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