[Wien] Compiling error

[Gavin Abo]

Below are the files that I have in my fftw3 lib folder:


username at computername:~$ ls ~/fftw-3.3.10/lib
cmake  libfftw3.a  libfftw3.la libfftw3_mpi.a libfftw3_mpi.la  pkgconfig


The -lfftw3_mpi should tell the compiler to use the libfftw3_mpi.a.


Maybe that file is missing in fftw3 lib folder (ls 
/home/pablo/Documentos/Soporte/Software/fftw3/lib).


Kind Regards,

Gavin

WIEN2k user


On 5/30/2025 1:49 PM, delamora wrote:
> Dear WIEN2k,
> Running
> ./siteconfig
> I got this error message;
> --------------------
> No OMP parallel version of your FFTW library could be found. Installing
>   it would improve the performance of some programs (lapw0, lapw2, 
> 3ddens).
>
>   Your FFTW_OPT are:   -DFFTW3 
> -I/home/pablo/Documentos/Soporte/Software/fftw3/include
>   Your FFTW_LIBS are: 
>  -L/home/pablo/Documentos/Soporte/Software/fftw3/lib -lfftw3
>   Your FFTW_PLIBS are: -lfftw3_mpi
>
>   These options derive from your chosen settings:
>   FFTWROOT:  /home/pablo/Documentos/Soporte/Software/fftw3/
>   FFTW_VERSION:        FFTW3
>   FFTW_LIB:            lib
>   FFTW_LIBNAME:        fftw3
>   Is this correct? (Y,n): Y
>
>
> no se puede encontrar -lfftw3_mpi: No existe el archivo o el directorio
>  => -lfftw3_mpi cannot be found: this file or directory does not exist
> ------------------
>
> Saludos
>
> Pablo
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