Re: GNAT vs Matlab - operation on multidimensional complex matrices

[darek <darek.maksimiuk@gmail.com>]

Hi Jean-Pierre, 
 No, I did not evaluate it. This how I look at it:some of the functions (i.e.  FFT) (that have some local complex arrays inside), I need to call  ~320k-400k times per second (depends on the settings, and this is for the  simpler 4x4 MIMO). So, even if a single allocation cost some microseconds, then the total time is substantial. 

The development of the code is in an early stage, and I do (almost) everything to avoid using C :) :)  in this project (just kidding). 

Regards,
   Darek 


On Wednesday, 1 April 2020 17:01:12 UTC+2, J-P. Rosen  wrote:
> Le 01/04/2020 à 13:01, darek a écrit :
> > Thanks for all your posts. At this moment I use the access types to
> > avoid an overhead associated with allocation, and initialization of
> > these arrays
> 
> Could you elaborate on this? Did you measure? Normally, accessing a
> statically allocated array is faster...
> 
> -- 
> J-P. Rosen
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