[Pw_forum] Using fftw wrapper for intel mkl lib?

[Detlef Schmicker]

Dear Paolo,

thanks. I managed to link to mkl with v.2 and v.3 wrapper. Both are
working in my serial execution setup.

I could not reproduce spead up using v.3 wrapper and mkl. I have a
Pentium 4 and espresso 3.2.

Just as an information,

thanks Detlef

Am Montag, den 05.03.2007, 16:51 +0100 schrieb Paolo Giannozzi:
> On Mar 3, 2007, at 18:19 , Detlef Schmicker wrote:
> 
> > did anybody manage to compile pwscf (pw.x) using the fftw-wrapper
> > of mkl 9.0?
> 
> AFAIK there is no special trick to compile pw.x; just compile
> for either v.2 or v.3 of FFTW and load the mkl wrappers,
> provided by Intel as a separate package, to be compiled.
> 
> I heard that the FFTW v.2 wrappers work for both serial
> and parallel execution, but you gain little; you gain much
> more with v.3 wrappers, but they work only for the serial
> case.
> 
> Paolo
> ---
> Paolo Giannozzi, Democritos and University of Udine, Italy
> 
> 
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