functions in yao_fast.i -

 _export_wisdom  
 

 _import_wisdom  
 

             func calcPSFVE(pupil,phase,scale=)  
 
   Similar to calcpsf, but way faster.  
   This function calls the C routine _calcPSFVE that uses the vectorial  
   library vDSP fft functions.  
   Pupil and phase have to be float, this is insured in this wrapper  
   routine. If you have any care for speed, I recommend that your  
   input array are already floats. It takes time to cast from one  
   type to another.  
   Phase can be a data cube, in which case the return image is also  
   a data cube of equal dimensions.  
   Scale is a scaling factor on phase (the used phase is = to  
   input phase * scaling factor)  
   Warning: Works only for powers of 2 !  

             func fftw_wisdom(void)  
 
   this function should be run at the start of each yorick session.  
   It reads out the wisdom file, if any, or calls _init_fftw_plans  
   to optimize the wisdow if it does not find the file.  

             func init_fftw_wisdom(nlimit)  
 
   this function should be run once on your hardware to optimize  
   fftw and save the wisdom file  
   nlimit: fft will be optimized for n = 2^[1,...,nlimit]