NextGen TotalView for HPC User Guide : PART II Debugging Tools and Tasks : Chapter 6 Examining and Editing Data : Using the CLI to Examine Data : Changing the Display of Data
Changing the Display of Data
 
Viewing STL Datatypes
By default, NextGen TotalView for HPC transforms STL types. If you do need to look at the untransformed data structures, use the CLI’s dset command to set the TV::ttf variable to false:
Following pointers in an STL data structure to retrieve values can be time-consuming. By default, NextGen TotalView for HPC only follows 500 pointers. You can change this by altering the value of the TV::ttf_ max_length variable.
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General information on creating custom type transformations
Transforming C++ types
“Displaying C++ Types” in the chapter “Examining and Editing Data and Program Elements” in the TotalView for HPC User Guide
Changing Size and Precision
You can change the format that NextGen TotalView for HPC uses to display a variable’s value using one of a series of TV::data_format variables that control the precision for simple data types.
For example, you can set how many character positions a value uses when TotalView displays it and how many numbers to display to the right of the decimal place. You can also customize how to align the value and if numbers should be padded with zeros or spaces.
CLI: To obtain a list of variables that you can set, type “dset TV::data_format*”.
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Data format CLI variables