2-d IMSL fft -> gfortran

[Kamaraju S Kusumanchi]

Peter Bromirski wrote:

> Hello,
> 
>     I have obtained a relatively old fortran code that uses 2-d IMSL
> FFT routines, forward and inverse.
> 
> Is there a gfortran implementation available that I can substitute?
> 

To my knowledge, no. Your best bet for replacement of IMSL for fft routines
would be to use something like fftw3 (www.fftw.org). If you decide to adopt
this route, be prepared to read up the manuals as it is not a drop in
replacement for IMSL routines. Nevertheless, unlike IMSL which is
commercial, fftw3 code is available for free (under GPL).

hth
raju
-- 
Kamaraju S Kusumanchi
http://www.people.cornell.edu/pages/kk288/
http://malayamaarutham.blogspot.com/