Someone famaliar with Cudpp?

How to call the prefix-scan in the lib cudpp? And how fast is it, say computing the prefix-sum of 16M integers? Someone can help me? I tried but failed lots of times…

Thanks!!!

There are examples included in the distribution:
http://www.gpgpu.org/developer/cudpp/

There are some performance numbers in the paper (0.79ms for a prefix sum of 1M values):
http://graphics.idav.ucdavis.edu/publicati…_pub?pub_id=915

I think the performance has improved considerably since then.