NextGen TotalView for HPC User Guide : PART II Debugging Tools and Tasks : Chapter 4   Working with Processes and Threads : How the Processes and Threads View Works : Debugging Command Width : Understanding Process Width
Understanding Process Width
At process width, the GOI consists of the process to which the TOI belongs, and all threads associated with that process, including manager threads. If the TOI happens to belong to a lockstep group that includes threads from other processes, those threads are included in the GOI as well. Execution continues until the TOI arrives at its goal, which can be the next statement, the next breakpoint, and so on. When the TOI reaches the goal, NextGen TotalView for HPC stops the other threads in the GOI.
Debugging commands selected from the Process menu also run at process width.