rather unfortunate article on Mac
Bill Broadley
bill at math.ucdavis.edu
Fri Feb 1 01:59:11 PST 2002
Just figured after hearing the 15 Gflop number I'd do a reality check
with stream. I happen to have a dual g4-800 around, so I ran stream:
copy scale add triad
cc -O1 313 307 341 342
cc -O2 319 306 341 342
cc -03 321 307 341 342
cc -O4 319 305 341 342
I happen to have a 1.2 Ghz athlon (pretty slow for these days) on
a $65 motherboard:
gcc -O1 677 660 760 680
At this rate the "15 GFlop" g4 can add 2 arrays at 28 Mflops single
prevision, or 14 Mflops double precision. About 1/2 of a low end
budget athlon.
--
Bill Broadley
Mathematics/Institute of Theoretical Dynamics
UC Davis
More information about the Beowulf
mailing list