Examining and Editing Data

Diving and Viewing Data

Diving is integral to the TotalView GUI and provides a quick, intuitive, and effective way to get more information about various program elements. Diving is usually performed by just double-clicking on an element and generally launches a window with more information. You can dive on variables of course, but also on processes and threads, the call stack, functions, and source code.

To dive on a variable, just double-click on it or highlight it and select View > Dive to launch a Variable Window, Figure 11.

 

Figure 11: Diving on a variable in the Stack Frame

Local variables are visible in the Stack Frame as in Figure 11, while global variables are available in the Source Pane.

In the Source Pane, if a global variable or function can be dived on, a red dotted box appears when your cursor hovers over it, Figure 12.

Figure 12: Diving on an object in the Source Pane

For example, the Stack Frame Pane in the Process Window contains the current call stack. When you dive on a routine, TotalView shows the routine in the Source Pane and its variables in the Stack Frame Pane.

 

Figure 13: Diving on a routine

 

TotalView provides several other ways to see more detail about any aspect of your program:

Displaying the call graph:

Use Tools > Call Graph to launch a dynamic diagram that shows all the currently active routines. Click Update to recreate this display in a running program

Viewing the state of every process and thread:

Use Tools > Parallel Backtrace View to view the status of thousands of processes from a single window.

Viewing your array data graphically:

Use the Variable Window’s Tools > Visualize to view array data as a graph or in the Visualizer, a versatile, stand-alone program that can be launched directly from within TotalView or separately via the command line.

See More

On all objects you can dive on: “Diving into Objects” in the TotalView User Guide

On diving in a Variable Window: “Diving in Variable Windows” in the TotalView User Guide

On the View > Dive In All command: “Displaying an Array of Structure’s Elements” in the TotalView User Guide

On displaying your call graph: “Displaying Call Graphs” in the TotalView User Guide

On displaying STL variables: “Displaying STL Variables” in the TotalView User Guide

On displaying assembler code: “Viewing the Assembler Version of Your Code” in the TotalView User Guide

On viewing processes and threads: ”Displaying a Variable in all Processes or Threads” in the TotalView User Guide