FFT + constant memory cudaFFT uses too much?

Accelerated Computing CUDA CUDA Programming and Performance
1

Hi,

I’ve got a question about constant memories: How much does the cuda FFT use?

If I declare a buffer in constant memory region which itself should fit into the memory (although it is large), the FFT execution fails. Is there a way to dynamically allocate constant memory and free it after use?

Thanks,

Vrah