🚀 go-pugleaf

warrenp@titan.colorado.edu (Pete Warren) wrote:
>Greetings all,
>
>I am trying to perform large scale FFT's on complex data in a column (or
>row) wise formats.  Does anyone know of a good, proven routine for either
>Fortran (preferred) or C ?  There are routines for complex 1-D data and
>for real column wise data but not for both.
>
>What I'm actually trying to do is build a code interface node for Labview
>that performs this function efficiently.
>
>I would appreciate any help or pointers.
>
>Thank you,
>
>- Pete Warren
>warrenp@colorado.edu


I have to admit, that I haven't a clue as to what you mean by column wise, but let 
me point you to a source that may be valuable anyway.

Way back in '79, the IEEE Press published a set of Fortran routines for signal 
processing.  I think that they are still available.  ISBN 0-87942-127-4, distributed 
by John Wiley and Sons.  

Anyway, there were both one dimensional and two dimensional real and complex 
routines designed to work to data sets so large that they were on the disk instead 
of main memory.

Inexpensive.  



Opinions expressed herein are my own and may not represent those of 3M.