At 16:11 6-1-2005 +0100, Marco Scheurer wrote:
It is relevant. It's 2 times slower at least.
Depends on the platform, IMHO. for platforms with separate
floating point boxes ('units') such as the alpha (maybe newer
pentiums
?)
Apple's G4 and G5 have a really nice vector unit.
What's the price of a quad g5?
Quad opteron 2.2Ghz is selling for $9995 now and cheapest price at
ebay i
see now is about $9500 for a complete working quad 2.2Ghz.
the float ops *could* be done in parallel.
Yes, but the same thing would be true for ints.
G5 is very pathetic for integer code.
I've done 3.6 billions floating operations per second on a single 2GHz
G5, using only about 85% of the available power, the rest being used in
other tasks than number crunching. That was using Apple's vectorized
implementation of CBLAS. Using both processors that translates into 7.2
MFlops on a 2500$ machine or 2.95 KFlops / $ or 347$ for 1 MFlops.