Debugging cuda cheat sheet

README.md

Debugging CUDA exe

1. Set CUDA as Synchronous mode: export CUDA_LAUNCH_BLOCKING=1
2. Use CUDA GDB :

/usr/local/cuda/bin/cuda-gdb --arg foo arg1 arg2

Enable GDB option :

(cuda-gdb) set cuda api_failures stop

More details:

(cuda-gdb) help set cuda

Run your program:

(cuda-gdb) run

Once you hit an issue, check the backtrace

(cuda-gdb) bt

To avoid calling this everytime:

Create a .gdb file like ~/debug_setup.gdb:

set confirm off
set cuda api_failures stop
run

then

cuda-gdb -x ~/debug_setup.gdb ./your_app