On Sep 1, 2009, at 3:12 PM, Raymond Toy wrote:
> ?iga Lenar?i? wrote:
>>
>> On Aug 31, 2009, at 4:58 PM, Raymond Toy wrote:
>>>>
>>>> I'm concerned about the speed of fft on GCL - particularly, does
>>>> GCL
>>>> (on windows) compile the code that is loaded with 'load(fft);' in
>>>> Maxima? Otherwise all 'optimizations' are rather pointless for
>>>> the 90%
>>>> of userbase that runs GCL on Windows.
>>> load does not normally compile anything. So it will be rather slow.
>>>
>>> Ray
>>>
>>
>> Perhaps fft should compile automatically on first load like lapack?
>> It's seems reasonable since it's numerical code. Users shouldn't be
>> troubled with 'manual' compilation.
>>
> Yes, that's probably a good idea. I certainly expect fft to be
> reasonably fast.
>
> Ray
>
I can try to 'duplicate' the system that's used in lapack's case,
though I don't understand it completely.
Another thing - I think fft should use 'flonum' type instead of
'double-float', right (to support compilation with double-doubles and
so on)?
Regards,
Ziga