[EMAIL PROTECTED] a écrit :
Hello,
can anybody confirm if fftw-3.1.2 is compatible with gromacs 3.3.1 and
gromacs 4.0?
A colleague has recently indicated that I must use fftw 2.1.5 for
gromacs mpi. However, I have been using fftw-3.1.2 for quite a while
now. It compiles fine and my searching today turned up some other
usage here:
http://lindahl.sbc.su.se/outgoing/workshop2007/tutorial1/tutorial1.pdf
I did find mention of some problems with fftw 3.0.1 and gromacs here:
http://www.pathscale.com/building_code/gromacs.html and also on the
gromacs users mailing list, but I am hoping that fftw 3.1.2 is fine.
Second question, if there is some problem with fftw 3.1.2 and mpi
gromacs then is this a problem of
a) inability to compile,
I have compiled several times gromacs-3.3.3 with fftw-3.1.2 on different
machines and never had any problem related to fftw, but I'm really not a
gcc wizard. Same think with gmx-3.3.1 and gromacs-4
b) slow execution with PME
I have never noticed any slowdown with fftw-3.1.2 on any gromacs version
> 3.3.1
or c) incorrect dynamics?
I have briefly compare gromacs-3.3.1 + fftw-2.1.5 (on cluster X) and
gromacs-3.3.3+fftw-3.1.2 (on cluster Y) and didn't notice any
significant difference, but as I said, it was a quick comparison.
Additionally, it is said on the website that Gromacs is compatible with
fftw-3.x:
http://www.gromacs.org/content/view/23/33/
Nicolas
Thanks,
Chris.
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begin:vcard
fn:Nicolas Sapay
n:Sapay;Nicolas
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