The MPI Timeline Tab

The MPI Timeline tab shows a set of horizontal bars, one for each process in the MPI experiment, with diagonal lines connecting them indicating messages. Each bar has regions colored according to the MPI function they are in, or indicating that the process is not within MPI (that is, it is elsewhere in the application code).

Selecting a region of a bar or a message line shows detailed information about the selection in the MPI Timeline Controls tab.

Dragging the mouse causes the MPI Timeline tab to zoom in on the horizontal (time) axis or the vertical (process) axis, depending on the predominant direction of the drag.