Replies to post #11227 on Advanced Micro Devices Inc (AMD)

[kpf]

Joe

Because PGI compiler generated 64 bit code

Ok. The applications run for SPEC remain the same, right? That would indicate Intel-compiled 32-bit code is (presently?, still?) faster than PGI-compiled 64-bit code for SPEC2Kint, SPEC2Kfp and SPEC2Kfp_rate-applications. Hmm, for some other applications we have seen this phenomenon already.

I wonder how we should understand this?
Is it because compiler-technology for AMD-64 is still juvenile?
Or should we expect that a portion of the code out there will never benefit from being recompiled to AMD-64-code performancewise?

If IBM is pushing AMD64 bit code, I think it is more of an endorsement than if they used x86 code.

Under the assumption that desision-makers for Server-systems take notice of SPEC-CPU-scores in an appropriate way (if at all), yes.

Thanks

K.