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Valgrind 3.3 - Advanced Debugging and Profiling for GNU/Linux applications
by J. Seward, N. Nethercote, J. Weidendorfer and the Valgrind Development Team
Paperback (6"x9"), 164 pages
ISBN 0954612051
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5.8.3 Controlling the MPI wrapper library

Environment variable ‘MPIWRAP_DEBUG’ is consulted at startup. The default behaviour is to print a starting banner

valgrind MPI wrappers 16386: Active for pid 16386
valgrind MPI wrappers 16386: Try MPIWRAP_DEBUG=help for
  possible options

and then be relatively quiet.

You can give a list of comma-separated options in ‘MPIWRAP_DEBUG’. These are

If you want to use Valgrind's XML output facility (‘--xml=yes’), you should pass ‘quiet’ in ‘MPIWRAP_DEBUG’ so as to get rid of any extraneous printing from the wrappers.

ISBN 0954612051Valgrind 3.3 - Advanced Debugging and Profiling for GNU/Linux applicationsSee the print edition