Author: Jeremiah Penery
Date: 20:34:09 08/29/03
http://www.digit-life.com/articles2/insidespeccpu/insidespeccpu2000-opteron2.html An interesting comparison of compilers. We can see that compilers using AMD64 give Crafty between 50-100% speed improvement over x86-32. If only those compilers were to the level of ICC/MSVC in the first place, it might be a real big win, but the weakness of GCC/(and especially)PGO compilers means that the speed boost doesn't translate into that much real gain over what the best 32-bit compilers already give. GCC using AMD64 does, however, net a 30% increase in speed over ICC's score. Once we get a *good* compiler for these systems, I think Bob will finally be proven right about the benefits of 64-bit processors for Crafty.
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