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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Petz who wrote (100727)	3/29/2000 12:39:00 PM
From: Ali Chen	Read Replies (1) \| Respond to of 1572957

Petz, <SPEC organization decided on which code to use..> Yes, that is the primary purpose of the organization, to agree on limited set of codes from huge number of candidates, otherwise the benchmark will run forever. The applications are analyzed in terms of computational classes, research is conducted on how representative the particular class is in the workstation marketplace, and the choice is made. They do not change code details nor functionality, but they may request the author of chosen sub-benchmark to incorporate changes for reasons of portability across various platforms. The important part of spec.org is to decide on what size of data set to use in computations, to align it reasonably with expected memory sizes for 3-5 years ahead. After that they design a huge Perl script that controls compillations, sets up working directories and input data sets (up to 10-30MB in size), executes sub-benchmarks, performs comparisons with reference data sets, and reports results in several output formats. <Compaq Fortran compiler optimized for Athlon will result in higher SPECfp numbers for Athlon> Somehow I feel it will :) <the SPECint code is probably 'C'> Yes it is, entirely. So AMD/Compaq needs to rely on Microsoft C and their optimizations, with possible use of third-party preprocessors. For SPECfp2000, 4 out of 14 sub-test are also written in C. Regards, - Ali