TotalView
module avail totalview/
TotalView is the most commonly used debugging tool providing an interactive graphical user interface for debugging both single-threaded and parallel/distributed applications. It supports most common programming models and libraries such as MPI, OpenMP, Threads, PVM, HPF, Shmem and fork/exec, including the GPU/CUDA debugging.
Usage
Licensing: the application is licensed for 64 simultaneously debugged processes (so-called tokens).