problem with gprof

[Dominique Dhumieres]

> ... I am running gprof on my Mac, ...

gprof does not work on Mac OSX.

> Can you suggest what I need to do to remedy this ?

On older OSX there was an utility called Shark which allowed you
to profile your code. On recent OSes it has been replaced by
something else I cannot remember the name right now, but
you should be able to find it with google.

Cheers,

Dominique