[Pw_forum] Grid differences between machines - why?

Konstantin Kudin konstantin_kudin at yahoo.com
Fri Mar 12 17:31:31 CET 2004


 Thanks to everybody who replied for explanations. My
question now is if there is an easy way to use FFTW on
IBM instead of essl? Supposedly, FFTW should compile
on IBM and give decent speed as well.

 It does not make me comfortable when I am getting 2
mRyd energy differences between machines, and to hell
with performance if things are not directly


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