Has anybody experience in cufft performance with matlab?
I’ve written a mex file to execute the fft on the gpu.
It’s like the fft2 sample from the matlab plugin from Nvidia, but only for 1D transforms.
I’ve measured only 2x speedup…(Vectorsize: 100*1024) I think this is a little slow…
I use a C870 Tesla. BandwidthTest results approx. 2GB/s
Host Processor is an Intel Core 2 Duo with 2.2GHz
You can see my results in the attachment.
So anybody can comment?