Author: Robert Hyatt
Date: 09:13:44 09/30/02
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On September 30, 2002 at 00:09:28, Jeremiah Penery wrote: >On September 29, 2002 at 23:31:36, Robert Hyatt wrote: > >>I don't know what this means. I have several dozen programs (Crafty >>is only one) that we have run using intel's compiler and gcc, and in >>_every_ case, Intel's compiler is faster. On P2's, on P3's and on >>P4's... Of course I wouldn't use intel's compiler for an AMD chip, >>why would they want to optimize for a competitor's chip??? > >They don't have to optimize specifically for the competitor's chip, as Intel >compiler still produces probably the fastest binaries for AMD machines. Any >general optimizations (P2, P3, and even P4 optimizations (excluding SSE2 stuff >or whatever)) are just as helpful for AMD processors as they are for Intel ones. Maybe or maybe not. AMD's pipeline is different, and there are subtle differences in instruction choices, that can make a difference in speed. I don't see why the Intel compiler guys would bother studying AMD at all...
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