Info Catalog fftw3: FFTW MPI Installation fftw3: Distributed-memory FFTW with MPI fftw3: 2d MPI example

fftw3: Linking and Initializing MPI FFTW

 
 6.2 Linking and Initializing MPI FFTW
 =====================================
 
 Programs using the MPI FFTW routines should be linked with '-lfftw3_mpi
 -lfftw3 -lm' on Unix in double precision, '-lfftw3f_mpi -lfftw3f -lm' in
 single precision, and so on (Precision).  You will also need to
 link with whatever library is responsible for MPI on your system; in
 most MPI implementations, there is a special compiler alias named
 'mpicc' to compile and link MPI code.
 
    Before calling any FFTW routines except possibly 'fftw_init_threads'
 (Combining MPI and Threads), but after calling 'MPI_Init', you
 should call the function:
 
      void fftw_mpi_init(void);
 
    If, at the end of your program, you want to get rid of all memory and
 other resources allocated internally by FFTW, for both the serial and
 MPI routines, you can call:
 
      void fftw_mpi_cleanup(void);
 
    which is much like the 'fftw_cleanup()' function except that it also
 gets rid of FFTW's MPI-related data.  You must _not_ execute any
 previously created plans after calling this function.
 

Info Catalog fftw3: FFTW MPI Installation fftw3: Distributed-memory FFTW with MPI fftw3: 2d MPI example