Category: Libraries-Math-FFT
FFTPACK is a Fortran subroutine library of Fast Fourier Transforms (FFT's)
developed at the National Center for Atmospheric Research. Version 5
of the library was written by Paul Swarztrauber and Richard Valent in
the mid 1990's. This release of FFTPACK includes single and multiple
instance complex-to-complex and real-to-real transforms, two-dimensional
complex-to-complex and real-to-complex transforms, and a collection of
sine and cosine transforms. references
The FFTPACK User Guide contains the complete documentation for the package.
To use the package, you must load the version with the default data sizes which match your software.
For the 4 byte REAL and 4 byte INTEGER version:
module load fftpack/5+r4i4 ftn test.f90"
For the 8 byte REAL and 4 byte INTEGER version:
module load fftpack/5+r8i4 ftn test.f90"
For the 8 byte REAL and 8 byte INTEGER version:
module load fftpack/5+r8i8 ftn test.f90"
The appropriate library will be automatically added to the ftn link command.
The FFPACK module must be reloaded if you change the PrgEnv or you must issue a 'module update' command.
This package has the following support level : Unsupported
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