tnfdebug

Directs probe information to stderr rather than the trace file.

SYNTAX

tnfdebug [probes ...]| probe_group

DESCRIPTION

Use tnfdebug to direct probe information to stderr. For example, if you want to see probe information about a single probe while your program is running, you can direct Prism to display that probe's information without waiting for the final trace file to be created when your program ends.

You select probes by:

• Probe name - Defined in the TNF-instrumented Sun MPI library. You can specify multiple probes by using a list of space-separated probe names. You can also use probe names created in your own C or C++ program.

• A wildcard expression using shell pattern matching notation.

• A group name defined in the TNF-instrumented version of the Sun MPI library. Probes can belong to multiple probe groups. If you specify a probe group, tnfdebug directs the probe information to stderr from all probes belonging to that probe group. You can also use group names created in your own C or C++ program. You can specify only one probe group per tnfdebug command.

For further information about creating TNF probes and groups, see the TNF_PROBE(3X) man page. For further information about the shell pattern matching format accepted by tnfdebug, see the fnmatch(5) man page.

EXAMPLES

To direct probe information from MPI_Barrier_start to stderr:

(prism all) tnfdebug MPI_Barrier_start