Enabling ReplayEngine at Program Load
To enable ReplayEngine when loading a program into TotalView, select the checkbox Enable reverse debugging with Replay Engine in either the Debug a Program or Attach to Process dialogs available on the Start Page.
Figure 2, Enabling ReplayEngine from the Start Page
For a program already under TotalView control, you can use the Command Line view to enter the dattach command with the -replay option.
dattach -replay program-path
For a new program, ReplayEngine begins recording instructions as soon as you begin executing the program. For a running process to which you have attached, ReplayEngine starts recording the next time you restart the process.