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cudansight

I cannot set breakpoint in CUDA kernel

I'm new to NSIGHT and CUDA. I tried to set a breakpoint inside my CUDA kernel code, but I can't--the breakpoint is set at the end of my kernel and not on the particular line I want to debug.

  • I'm using VS2010 (MFC project) with NSIGHT 2.2 and CUDA 4.2.
  • I'm compiling in debug mode.
  • I'm using CUDA in a project which is not the "StratUp project".
  • I'm using "Generate Host Debug Information" with "Yes (-g)"
  • I'm using "Generate Device Debug Information" with "Yes (-G)"

I am currently running the program through Menu->Nsight->Start CUDA debugging. When I try to set a breakpoint on a different project (which is "StartUp project"), i do succeed. Any suggestions about how I can get the breakpoint to act on a particular line, versus the entire kernel?

Solution

  • I used too many threads (256X256) to activate my kernel. dim3 threads(256,256) (kernel<<<...,threads>>>