Using Vampir
From the File'' menu, select Open Tracefile…''. A file selection box will appear. Choose mpifft.bpv
We'll start by viewing the timeline for the the entire run. From the Global Displays'' menu, select Global Timeline''. A window with the timeline will pop up.
Zoom in on a section of the timeline:
Click and drag over a portion of the timeline with the left mouse button. This part will be magnified. If you zoom in close enough you will see the MPI calls.