This directory contains the fft wrapper routines for "C" and Fortran. This provides a common interface to all the DDS application programs. So if or when we need to change to a different set of fft routines, we simply change these wrappers and relink the application programs. We will use the faster system-dependent fft routines when available. But we always have the fftw routines to fall back on if better routines are not available for a specific platform.

${DDSROOT}/src/lib/fft: Generates libfft.a, cfft.h and fft.h (fft wrappers tying to host-dependent, tuned fft libraries) for building DDS applications.

• Local files & directories:
  • 14 source files (1474 lines of code)
  • architecture-dependent subdirecties containing the working build files
  • Makefile - includes other makefiles & defines architecture Makefile
  • Makefile2 - host architecture-dependent makefile information
• Libraries that gets installed under ${DDSROOT}/lib:
  • libfft.a - fft API wrappers used by DDS applications
• Include files that gets installed under ${DDSROOT}/include:
  • cfft.h - "C" fft wrapper include file used to build DDS applications
  • fft.h - FORTRAN fft wrapper include file used to build DDS applications