[gmx-users] Slow opterons : low Mega Flops

[Gia Maisuradze]

Hi,
I'm getting really slow performance on my opteron system, performance that 
is roughly half that of my old athlon mp system.  I've tried recompiling the 
program with various options, mpi, no mpi, threading, no threading, cpu 
optimized, not optimized, etc.  Does anyone work with opterons under suse 
9.3 and have an idea about what the best options for compiling lam, fftw, 
and gromacs should be?

Thanks,

Gia Maisuradze