Re: How to use CUDA-FFT with Octave

[Fredrik Lingvall]

On 03/20/2018 12:31 PM, Julien Bect wrote:
> Le 20/03/2018 à 12:17, Richard Crozier a écrit :
>> On 20/03/18 11:12, Prasad K wrote:
>>> Hi Richard,
>>>
>>> I saw the link already that is only for BLAS not for FFT.
>>>
>>> Thank you,
>>> Prasad
>>>
>>
>> You don't suspect that the octave fft algorithm will ultimately use
>> BLAS internally?
>
> Are you sure about that ?  I thought it was using FFTW...
>
>
>
BLAS is for linear algebra matrix operations.

To avoid writing CUDA/OpenCL checkout the ArrayFire lib. It's easy to
switch between CPU/CUDA/OpenCL implementations. Info for FFTs:

http://arrayfire.org/docs/group__signal__func__fft.htm

Just write a wrapper oct-file that calls the ArrayFire functions.

Regards,

/Fredrik