Re: [Boost-users] Is there a FFT wrapper in boost?

Subject: Re: [Boost-users] Is there a FFT wrapper in boost?
From: Paul Baxter (pauljbaxter_at_[hidden])
Date: 2008-10-22 14:41:25

>>> FFTW is the fastest FFT library. But its interface is in C. I'm
>>> wondering if there is any ongoing project on FFT.
>>
>> You could try VSIPL++ at www.codesourcery.com
>
> If I'm correct, VSIPL is not free, right?

As others have pointed out, VSIPL++ is 'as free' as FFTW. Both require a 
commercial license if used in closed source apps.

Also note that Linux versions of Intel libs have an 'open' binary version 
but do check licenses. Also note that I don't think you have to have 
libraries like MKL/IPP or Mercury SAL (or ATLAS etc) but each may help you 
get better performance on a particular platform than the vectorised basic 
code your compiler might provide using VSIPL++ core without the libs.

Really depends what you want to do.

VSIPL++ was IMHO the best of the options I looked at for signal processing ~ 
1 year ago though I'd characterise it as 'evolving' and not as mature as say 
Intel's MKL/IPP and equivalents.