Debugging CUDA Programs

The TotalView CUDA debugger is an integrated debugging tool capable of simultaneously debugging CUDA code that is running on the host Linux-x86_64 and the NVIDIA® GPU. CUDA support is an extension to the standard version of Linux-x86_64 TotalView, and is capable of debugging 64-bit CUDA programs on Linux-x86_64. Debugging 32-bit CUDA programs is currently not supported.

Supported major features:

Debug CUDA application running directly on GPU hardware

Set breakpoints, pause execution, and single step in GPU code

View GPU variables in PTX registers, local, parameter, global, or shared memory

Access runtime variables, such as threadIdx, blockIdx, blockDim, etc.

Debug multiple GPU devices per process

Support for the CUDA MemoryChecker

Debug remote, distributed and clustered systems

All Linux-x86_64 host debugging features are supported, except for ReplayEngine

See More

On using the CUDA debugger: “Using the CUDA Debugger” in the TotalView User Guide

On the CLI dcuda command: dcuda in the TotalView Reference Guide