TotalView Users Guide - CI Wiki

Setting Breakpoints and Barriers
Figure 235: Action Point >
Properties Dialog Box
The When Hit, Stop radio buttons indicate what other threads TotalView
stops when execution reaches the breakpoint, as follows:
Scope What TotalView does:
Group Stops all threads in the current thread’s control group.
Process Stops all threads in the current thread’s process.
Thread Stops only this thread.
CLI: dbarrier –stop_when_hit
After all processes or threads reach the barrier, TotalView releases all held
threads. Released means that these threads and processes can now run.
The When Done, Stop radio buttons tell TotalView what else it should stop,
as follows:
Scope What TotalView does:
Group Stops all threads in the current thread’s control group.
Process Stops all threads in the current thread’s process.
Thread Stops only this thread.
CLI: dbarrier –stop_when_done
Creating a Satisfaction Set
For even more control over what TotalView stops, you can select a satisfaction
set. This set tells TotalView which threads must be held before it can
release the group of threads. That is, the barrier is satisfied when TotalView
has held all of the indicated threads. Use the Satisfaction group items to
tell TotalView that the satisfaction set consists of all threads in the current
thread’s Control, Workers, or Lockstep group.
364 Chapter 16: Setting Action Points