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Blitz Support : |
From: oon-list-bounces_at_[hidden]
Date: 2003-05-20 08:21:20
attached mail follows:
Hi all,
I've decided to rewrite my quantum dynamics programs in C++ (they are all
written in F90) and I am trying to use blitz++. Before starting the work I
run the benchmarks in the blitz++ directory and gave a look at the results.
I honestly must admit that on my pentium 4 fortran really outperforms blitz++,
so that I don't know if it's worth trying to rewrite my code in C++.
From what I read about blitz++ I was expecting something more, at least
comparable to fortran.
I am using the Intel C++ compiler 7.1 and the Intel Fortran compiler 7.1
and I've compiled blitz++ and the benchmarks both with the maximum
optimization (-O3 -xW -tpp7). My computer is a laptop with 256 Mb RAM
and a pentium 4 processor.
Is there anything wrong, or is this the maximum that blitz++ can achieve?
I've attached the results of my benchmarks as a postsscript file generated
using the scripts for matlab contained in the blitz++ tree.
Thanks in advances,
Lello.