I have a test program that runs fine with mpiexec using two processes
on the same machine but I cannot get it to run across two machines
because MSMPI's mpiexec gives the following error:

>"C:\Program Files\Microsoft Compute Cluster Pack\Bin\mpiexec.exe" -hosts 2 172.16.3.54 1.1.1.2 Infiniband.exe

Aborting: Access denied by node '1.1.1.2'.
A common cause: this node is a resource managed by the Compute Cluster
scheduler
 and mpiexec was attempting to use it without a scheduled job.

Is it possible to allow access in order to solve this problem?

The recommended solution seems to be to use the "job" command to
submit a job instead of invoking mpiexec directly. However, I cannot
find the "job" program (it is neither on the path nor in the Bin
directory). Even if I could find it, how do I tell it where the other
machine is?

Cheers,
Jon.