How to debug?

[theoqian]

Hi cutlass team, I'm trying to debug cutlass project in vscode via cuda-gdb. But the break points in kernels never hit. I got 'Module containing this breakpoint has not yet loaded or the breakpoint address could not be obtained.' in vscode debuger. And if I set '-G' to 'NVCC_FLAGS' in CMakeList.txt I got 'line xxx not in file'. Could you please show me how to debug the project correctly? Thanks.

[hwu36]

Don't use cuda-gdb to debug any heavy templated CUDA code. We just insert printf to dump the information to debug. We have some utilities to help you to do it. Check this example .

Also -G can cause miscompilation in cuda 11.4 and 11.5

[theoqian]

Thanks. I also find a solution here https://forums.developer.nvidia.com/t/cuda-gdb-cannot-set-break-point-in-device-function-defined-in-a-header-h-file/78233