gdb4hpc

gdb4hpc is a GDB-based parallel debugger used to debug applications compiled with CCE, PGI, GNU and Intel Fortran, C and C++ compilers.

Guides and Tutorials

Getting Started Guide

The getting started guide covers the following topics and more:

The help system
Debugging basics
Procsets
Focusing on a subset of an application’s ranks

Getting Started Guide

HPC Features Tutorial

The tutorial covers the following unique HPC-centric features of gdb4hpc and more:

Comparative debugging
Assertion scripts
Decompositions
Shell commands and output piping
Array slicing

HPC Features Tutorial

Debugging an MPI/CUDA GPU Application Tutorial

This tutorial shows how to use gdb4hpc to debug a multinode MPI application that uses CUDA compute kernels. The tutorial is written with CUDA/NVIDIA GPUs in mind, but the concepts apply to HIP/AMD GPUs as well.

Debugging an MPI/CUDA GPU Application Tutorial

Handling Arrays

Handling arrays covers gdb4hpc’s enhancements on Gdb’s array handling tools.

Handling Arrays

Parallel Programming Library Support

gdb4hpc has extra support for some popular parallel programming libraries.

VSCode Extension Guide 

A guide covering gdb4hpc’s vscode extension.

VSCode Extension Guide

Python Debugging

gdb4hpc has extra support for debugging Python applications.

Using Python Mode