CUDA debugging on VS2005 Need help...

Accelerated Computing CUDA CUDA Programming and Performance
1

Hello,

I need some help on debugging CUDA codes using my VS2005. I have done all of the following:

  1. Install CUDA build rule made by Jared (http://forums.nvidia.com/index.php?showtopic=30273) and enable it for my project.
  2. Set the /DEBUG linker option (to generate debug info).
  3. Compile the project in EmuDebug build by enabling Emulation on the CUDA property page.

The project compiles and runs, but when I set a breakpoint inside a .cu file, the breakpoint doesn’t seem to correspond to the line of code specified (e.g. it continues even when it encounters a return statement, it skips codes that are not inside a conditional block, etc.). Further, I also can’t view the variables’ values in the watch window (it says the symbol ‘variableName’ is not found). Could someone help me on this? Thanks!

2

OK, finally managed to solve the problem:

  • The inaccurate breakpoint was because I split long CUDA_SAFE_CALL() line to several lines. Apparently, multiple line-CUDA_SAFE_CALL()s (and other macros, I suspect) are still counted as one line by nvcc preprocessor…
  • Symbol not found: the debugger couldn’t find variables put inside an anonymous namespace. Declaring these variables as static solves the problem.