Naming TNF Data Files and Controlling Data Collection Buffer Size

If you use the filename argument of the tnffile command to specify the name of the TNF data file, such as myfile.tnf. Prism will remember that file name. If you then issue the tnfview command without specifying a file name argument, Prism will supply the file named in the prior use of the tnffile command during the same session.

The second argument to the tnffile command, the size argument, allows you to control how large the trace data collection buffers will be for each process in your Sun MPI program. The default size is 128 Kbytes. For further information about the size of trace data files, see "Controlling Buffer Size".