TotalView Users Guide - CI Wiki

Using P/T Set Controls
Figure 162: The P/T Set
Control in the Process
Window
If you’re running at group width:
Process group TotalView examines each process in the process and
share group to determine whether at least one thread
is already at the goal. If a thread is at the goal,
TotalView holds its process. Other processes are allowed
to run. When at least one thread from each of
these processes is held, the command completes. This
lets you synchronize at least one thread in each of
these processes at a source line. If you’re running a
control group, this synchronizes all processes in the
share group.
Thread group TotalView examines all the threads in the thread group
that are in the same share group as the TOI to determine
whether a thread is already at the goal. If it is,
TotalView holds it. Other threads are allowed to run.
When all of the threads in the TOI’s share group reach
the goal, TotalView stops the TOI’s control group and the
command completes. This lets you synchronize thread
group members. If you’re running a workers group, this
synchronizes all worker threads in the share group.
The process stops when the TOI and at least one thread from each process
in the group or process being run reach the command stopping point. This
lets you synchronize a group of processes and bring them to one location.
You can also run to a selected line in a nested stack frame, as follows:
1 Select a nested frame in the Stack Trace Pane.
2 Select a source line or instruction in the function.
3 Enter a Run To command.
TotalView executes the primary thread until it reaches the selected line in
the selected stack frame.
Using P/T Set Controls
A few GUI windows have P/T set control elements. For example, the following
figure shows the top portion of the Process Window.
256 Chapter 13: Using Groups, Processes, and Threads