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fftw3: Calling FFTW from Modern Fortran

 
 7 Calling FFTW from Modern Fortran
 **********************************
 
 Fortran 2003 standardized ways for Fortran code to call C libraries, and
 this allows us to support a direct translation of the FFTW C API into
 Fortran.  Compared to the legacy Fortran 77 interface (Calling
 FFTW from Legacy Fortran), this direct interface offers many
 advantages, especially compile-time type-checking and aligned memory
 allocation.  As of this writing, support for these C interoperability
 features seems widespread, having been implemented in nearly all major
 Fortran compilers (e.g.  GNU, Intel, IBM, Oracle/Solaris, Portland
 Group, NAG).
 
    This chapter documents that interface.  For the most part, since this
 interface allows Fortran to call the C interface directly, the usage is
 identical to C translated to Fortran syntax.  However, there are a few
 subtle points such as memory allocation, wisdom, and data types that
 deserve closer attention.
 

Menu

 
· Overview of Fortran interface
· Reversing array dimensions
· FFTW Fortran type reference
· Plan execution in Fortran
· Allocating aligned memory in Fortran
· Accessing the wisdom API from Fortran
· Defining an FFTW module
 

Info Catalog fftw3: Distributed-memory FFTW with MPI fftw3: Top fftw3: Calling FFTW from Legacy Fortran