Setting Breakpoints and Barriers
TotalView has several options for setting breakpoints, including:
Source-level breakpoints
Breakpoints that are shared among all processes in multi-process programs
Assembler-level breakpoints 
You can also control whether TotalView stops all processes in the control group when a single member reaches a breakpoint.
Topics in this section are:
Setting Source-Level Breakpoints”
Setting Breakpoints at Locations”
Displaying and Controlling Action Points”
Setting Machine-Level Breakpoints”
Setting Breakpoints for Multiple Processes”
Setting Breakpoints When Using the fork()/execve() Functions”
Setting Barrier Points”