NVIDIA CUDA Debugging Overview

The TotalView CUDA debugger is an integrated debugging tool capable of simultaneously debugging CUDA code that is running on the host system and the NVIDIA® GPU. CUDA support is an extension to the standard version TotalView, and is capable of debugging 64-bit CUDA programs. 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

• Debug remote, distributed and clustered systems

• Support for directive-based programming languages

• Support for host debugging features

Requirements:

• The CUDA SDK.

• A host distribution supported by NVIDIA.

For SDK versions and supported NVIDIA GPUs, see Supported Platforms.

In this section: