Ultra SPARC 300 MHz Solaris 2.6  
--------------------------------

Fast Fourier Transform Test.
------------------------------
Results of test of multivariate complex fourier transform,
computed in place using mixed-radix fast Fourier transform algorithm.

Fortran Code by: 

R. C. Singleton, Stanford Research Institute, Sept. 1968
see source at http://www.netlib.org/go/fft.f
or           http://www.numis.nwu.edu/ftp/pub/transforms/fft.f

Translation to C++ by:
by A.Sazonov (sazonov@thsun1.jinr.ru)

Note: for g++ ver. 2.95 option -mpcu=v9 is not the same 
as -mcpu=ultrasparc. The absence of -mcpu option is equivalent
to -mcpu=v7.

Test date: 4 Apr 2000.


  Compiler       |      Options           |   N     |  Time (sec).
----------------------------------------------------------------------------
f77(Sun 5.0)     | -fast                  | 10^6    |     5.3
		 | -fast		  | 2^20    |     5.0
                 | -fast                  | 10007   |     2.6
		 | -fast                  | 20011   |    10.4
----------------------------------------------------------------------------
g++ (2.95.2)     | -O2 -mcpu=ultrasparc   |  10^6   |     5.5 
		 | -O2 -mcpu=ultrasparc   |  2^20   |     5.4
                 | -O2 -mcpu=ultrasparc   | 10007   |     3.5
		 | -O2 -mcpu=ultrasparc   | 20011   |    13.9
----------------------------------------------------------------------------
g++ (2.95.2)     | -02 -mcpu=v8           | 10^6    |     6.0
                 | -02 -mcpu=v8           | 2^20    |     5.7
                 | -02 -mcpu=v8           | 10007   |     4.75
                 | -02 -mcpu=v8           | 20011   |    19.0
----------------------------------------------------------------------------
g++ (2.95.2)	 | -02                    | 10^6    |     6.0
                 | -02                    | 2^20    |     5.7
                 | -02                    | 10007   |     6.2
                 | -02                    | 20011   |    24.8
----------------------------------------------------------------------------
CC (Sun, 5.0)    | -fast                  | 10^6    |     5.2
		 | -fast                  | 2^20    |     5.2
                 | -fast                  | 10007   |     2.9
		 | -fast                  | 20011   |	 10.3