DeinoMPI Forum

Dear experts,

I am trying to start a test job on my home XP-machine and get the following:

$ mpiexec -np 1  C:\deinompi\examples\cpi.exe

0: URSA-MAJOR: -1: Unable to establish a secure connection to host 'URSA-MAJOR'
for rank 0 using user account 'mpi'
Error: destination computer refused a request for connection from 10.250.76.8:62741

$ mpiexec -np 1 -localonly  C:\deinompi\examples\cpi.exe

0: URSA-MAJOR: -1: Exception caught in process thread #0: The object instance does not contain a reference to an object.
Stack trace: in DeinoMPI.ProcessGroup.deinopm_thread_fn()

I had added mpiexec to the list of exceptions hidden somewhere in the Control Panel,
but it did not help. The machine is physically disconnected from the outer world
and I do not care about security issues. What shall I do?

Thank you

That's a tough one since in appears that the main process manager thread crashed without providing any stack trace. I would suggest starting by completely removing the DeinoMPI installation and reinstalling.

You may have to turn off your firewalls completely instead of just addind mpiexec to the exceptions list.