TotalView Users Guide - CI Wiki

Setting Breakpoints and Barriers
When you set a barrier point, TotalView places it in every process in the
share group.
Hitting a Barrier Point
If you run one of the processes or threads in a group and it hits a barrier
point, you sees an H next to the process or thread name in the Root Window
and the word [Held] in the title bar in the main Process Window. Barrier
points are always shared.
CLI: dstatus
If you create a barrier and all the process’s threads are already at that location,
TotalView won’t hold any of them. However, if you create a barrier and
all of the processes and threads are not at that location, TotalView holds
any thread that is already there.
Releasing Processes from Barrier Points
TotalView automatically releases processes and threads from a barrier
point when they hit that barrier point and all other processes or threads in
the group are already held at it.
Deleting a Barrier Point
You can delete a barrier point in the following ways:
� Use the Action Point > Properties Dialog Box.
� Click the icon in the line number area.
CLI: ddelete
Changing Settings and Disabling a Barrier Point
Setting a barrier point at the current PC for a stopped process or thread
holds the process there. If, however, all other processes or threads affected
by the barrier point are at the same PC, TotalView doesn’t hold them.
Instead, TotalView treats the barrier point as if it was an ordinary breakpoint.
TotalView releases all processes and threads that are held and which have
threads at the barrier point when you disable the barrier point. You can disable
the barrier point in the Action Point > Properties Dialog Box by selecting
Enable action point at the bottom of the dialog box.
CLI: ddisable
TotalView Users Guide: version 8.7 365