TotalView Users Guide - CI Wiki

Visualizing Array Data
Figure 126: TotalView
Visualizer Relationships
Action Click or Press
Reset r
Initialize I
Exit or Quit Ctrl-Q
How the Visualizer Works
The Visualizer is a stand-alone program to which TotalView sends information.
Because it is separate, you can use it in more than one way; for example:
� When you launch it from within TotalView, you can see your program’s
data as you are debugging your program.
� If you save the data that would be sent to the Visualizer, you can view it
later by invoking the Visualizer from the command line. (See
Figure 126.)
TotalView
Launch Third
Party Visualizer
Third Party
Visualizer
Launch Visualizer
from TotalView
Save Data
to File
TotalView
Visualizer
Visualizer
Data File
� Because TotalView is sending a data stream to the Visualizer, you can
even replace our Visualizer with any tool that can read this data.
The online Help contains information on adapting a third-party visualizer so that it
can be used with TotalView. This is also on our web site at http://
www.totalviewtech.com/Documentation/latest/html/User_Guide/
AdaptingaThirdPartyVisualizer.html.
Viewing Data Types in the Visualizer
Launch Visualizer
from Command Line
The data selected for visualization is called a dataset. TotalView treats stack
variables at different recursion levels or call paths as different datasets.
TotalView can visualize one- and two-dimensional arrays of integer or floating-point
data. If an array has more than two dimensions, you can visualize
part of it using an array slice that creates a subarray having fewer dimensions.
Figure 127 on page 183 shows a three-dimensional variable sliced so
that one of the dimensions is invariant.
182 Chapter 9: Visualizing Programs and Data