[Pw_forum] PW compilation with Threaded and MPI FFTW

[H.S.Domingos]

I would also be interested to know this.

For example in the makefile e have :

DFLAGS = ...-D__FFTW -D__USE_INTERNAL_FFTW ....

and that seems to suggest that you can use threaded FFTW by changing the 
flags and giving the FFTW path.

Could  I then ask if you would kindly tell me what the right flags are ?

best regards,

Helder


=======================================================================
|  Dr. Helder S. Domingos                                             |
|                                                                     |
| INESC Microsyst & Nanotechnol, Lisbon, P-1000 Portugal              |
| and                                                                 |
| R&D unit for  Molecular Chemical Physics                            |
| Chemistry Department, University of Coimbra                         |
=======================================================================


On Thu, 20 Apr 2006, sir_puding at tut.by wrote:

> Hi, All.
>
> Is it possible to use threaded and MPI version of FFTW with espresso?
> Configure script produces only -lfftw link option and i think it means
> that nonparallel version of FFTW is used. So, how RG space separation
> (on several CPU/nodes in pool) is possible in this case?
>
> I'm not a good programmer, so excuse me for dumb questions.
>
>
> Sergey
>
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