[gmx-users] install single & double precision versions of fftw-3.0.1

[Jian Zou]

Erik wrote:
>> libfftw3.*    double
>> libfftw3_threads.*    double & mpi
>> libfftw3f.*    single
>> libfftw3f_threads.*    single & mpi
>> Am I right?

> Almost - fftw3 doesn't have any MPI transforms at all (we do those  
> ourselves using 1d/2d single-CPU FFTs now), but the different  
> precisions are correct.


Hi Erik,

Thank you so much for your informations.

I also checked fftw3/configure -h, it says
 --enable-threads        compile FFTW SMP threads library

The SMP lib should be necessary for MPI, right?


Regards,

Jian Zou