
102 Cray T3E User’s Guide
Figure 9.4: A sample of a VAMPIR session. On the lower right corner
is the global timeline display showing the communication pattern. The
communication statistics display on the upper left corner shows the
number of messages sent between processors. The two pie charts show
the activities of individual processors.
Before the VAMPIR visualization tool is used for the first time, the user
should create a directory .VAMPIR_defaults in one’s home directory
and copy the configuration file $PAL_ROOT/etc/VAMPIR.cnf there.
The VAMPIR visualization tool is started with the command
vampir tracefile
The VAMPIR program can also open trace files that have been com-
pressed using the gzip or compress commands.
There are three basic display modes to visualize the activities and mes-
sage passing. These can be selected from the Global Displays menu:
• Timeline visualizes activities and message passing in a time in-
terval along a time axis. The interval or a processor set can be
selected from the display by drawing a rectangle with the left but-
ton of the mouse. The displayed messages may also be restricted
or identified by the message tags, communicators or size.
• Chart view shows the time spent in different activities in a time
Comentarios a estos manuales