Setting Source-Level Breakpoints

Typically, you set and clear breakpoints before you start a process. To set a source-level breakpoint, select a boxed line number in the tag field of the Process Window. (A boxed line number indicates that the line is associated with executable code.) A icon lets you know that a breakpoint is set immediately before the source statement.

You can also set a breakpoint while a process is running by selecting a boxed line number in the tag field of the Process Window. If you set a breakpoint while the process is running, TotalView temporarily stops the process so it can insert the breakpoint. After the breakpoint is set, the process resumes executing.