TotalView Users Guide - CI Wiki

Debugging Global Arrays Applications
Figure 104: Question Window
for Global Arrays
Program
Figure 105: Tools > Global
Arrays Window
After your program hits a breakpoint, use the Tools > Global Arrays command
to begin inspecting your program’s global arrays.TotalView displays
the following window.
CLI: dga
The arrays named in this window are displayed using their C and Fortran
type names. Diving on the line that contains the type definition tells
TotalView to display Variable Windows that contains information about that
array.
After TotalView displays this information, you can use other standard commands
and operations on the array. For example, you can use the slice and
filter operations and the commands that visualize, obtain statistics, and
show the nodes from which the data was obtained.
If you inadvertently dive on a global array variable from the Process Window,
TotalView does not know that it is a component of a global array. If, however,
you do dive on the variable, you can cast the variable into a global array
using either $ga for a C Language cast or $GA for a Fortran cast.
150 Chapter 7: Setting Up Parallel Debugging Sessions