What does this error mean?

[Kevin Van Workum]

Can you please interpret this error for me:

mpiexec: Error: read_keyvals: no '=' found in keyval 4 of line: cmd.

I get this error if my command line is either of the following:

mpiexec -allstdin -comm=mpich2-pmi -verbose a.out blah blah blah
mpiexec -allstdin -comm mpich2-pmi -verbose a.out blah blah blah

I should note that a.out was built with Intel MPI.

-- 
Kevin