Totalview® for HPC User Guide : PART IV Advanced Tools and Customization : Chapter 20 Setting Up Parallel Debugging Sessions : Debugging OpenMP Applications : Debugging OpenMP Programs : About OpenMP Platform Differences
About OpenMP Platform Differences
In general, TotalView smooths out the differences that occur when you execute OpenMP platforms on different platforms. The following list discusses these differences:
The OpenMP master thread has logical thread ID number 1. The OpenMP worker threads have a logical thread ID number greater than 1.
Select or dive on the stack parent token line to view the original routine’s stack frame in the OpenMP master thread.
When you stop the OpenMP worker threads in a PARALLEL DO outlined routine, the stack backtrace shows the following call sequence:
Outlined routine called from the special stack parent token line.
The OpenMP runtime library called from.
The original routine (containing the parallel region).