Sangamesh B wrote:
Hi Tim,
Recently I benchmarked a Fortran based Scientific application on both
Intel Xeon Quad core and AMD Opteron Quad core with RHEL 5. Following are
the results:
AMD-2.3GHz
INTEL-2.33GHz
1. Serial 147.719
sec 73.952 sec
2. Parallel 4 core 39.798
sec 32.317 sec
3. Parallel 8 core 26.880
sec 30.371 sec
Heh, so despite a slower compiler the better scalability of the opteron leads
to a faster time with 8 cores. For a fairer test I'd suggest using the same
compiler on both.
For AMD, I used GCC compiler(gfortran), which is released by AMD for
its barcelona-AMD fam10 based processors.
Gfortran is definitely getting better, I'd still expect intel's compiler to
have a significant advantage in most cases.
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