Unable to profile OpenCL code using NVidia Visual Profiler

Question

Hi,

I have an OpenCL code which adds two arrays and prints the output. I want to profile this program using NVidia Visual Profiler that comes with CUDA Toolkit 3.0. I selected the appropriate program(.exe) to profile and the program directory. The profiler runs the code successfully but is unable to generate profiling results. It gives the error "Empty Header found in CSV file". What could be the problem for this? Is it necessary to build the code using NVidia's CUDA compiler to be able to profile? Please help me in this regard.

Thanks, Rakesh K.

Answer 1

Can you check that your driver and your OpenCL Visual Profiler versions are in sync. i.e. have you installed the correct 3.0 driver?

Also, to ask the obvious, are you using the OpenCL Visual Profiler and not the CUDA Visual Profiler? In 3.0 they are two separate tools. In 3.1 (currently in beta) they are merged into a single tool.