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From: Xie, Hugh (hugh.xie_at_[hidden])
Date: 2007-04-03 16:11:31


Hi,

I got the follow error message while running: 'mpirun -v -np 2
-machinefile hosts.txt testc.x'

Process 0.1.1 is unable to reach 0.1.0 for MPI communication.
If you specified the use of a BTL component, you may have
forgotten a component (such as "self") in the list of
usable components.
------------------------------------------------------------------------

--
------------------------------------------------------------------------
--
Process 0.1.0 is unable to reach 0.1.1 for MPI communication.
If you specified the use of a BTL component, you may have
forgotten a component (such as "self") in the list of 
usable components.
------------------------------------------------------------------------
--
------------------------------------------------------------------------
--
It looks like MPI_INIT failed for some reason; your parallel process is
likely to abort.  There are many reasons that a parallel process can
fail during MPI_INIT; some of which are due to configuration or
environment
problems.  This failure appears to be an internal failure; here's some
additional information (which may only be relevant to an Open MPI
developer):
  PML add procs failed
  --> Returned "Unreachable" (-12) instead of "Success" (0)
------------------------------------------------------------------------
--
The same commands works if the content in hosts.txt is in same subnet.
Once I switch to hosts in different subnet, it stop working. I am using
ompi 1.2.
Please help.
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