[mpich-discuss] Error running examples after install

[Tiago dos Santos]

Hello everyone,

After installing mpich, I ran the examples and keep getting this stack error:

tds at ubuntu:~/Downloads/mpich-3.1.3$ mpiexec -f machinefile -n 2 ./examples/cpi
Warning: Permanently added the ECDSA host key for IP address '192.168.201.138' to the list of known hosts.
Process 0 of 2 is on ubuntu
Fatal error in PMPI_Reduce: Unknown error class, error stack:
PMPI_Reduce(1263)...............: MPI_Reduce(sbuf=0x7fff3f86da00, rbuf=0x7fff3f86da08, count=1, MPI_DOUBLE, MPI_SUM, root=0, MPI_COMM_WORLD) failed
MPIR_Reduce_impl(1075)..........: 
MPIR_Reduce_intra(881)..........: 
MPIR_Reduce_binomial(188).......: 
MPIDI_CH3U_Recvq_FDU_or_AEP(636): Communication error with rank 1

===================================================================================
=   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
=   PID 7563 RUNNING AT ubuntu
=   EXIT CODE: 1
=   CLEANING UP REMAINING PROCESSES
=   YOU CAN IGNORE THE BELOW CLEANUP MESSAGES
===================================================================================
[proxy:0:1 at ubuntu-clone] HYD_pmcd_pmip_control_cmd_cb (pm/pmiserv/pmip_cb.c:885): assert (!closed) failed
[proxy:0:1 at ubuntu-clone] HYDT_dmxu_poll_wait_for_event (tools/demux/demux_poll.c:76): callback returned error status
[proxy:0:1 at ubuntu-clone] main (pm/pmiserv/pmip.c:206): demux engine error waiting for event
[mpiexec at ubuntu] HYDT_bscu_wait_for_completion (tools/bootstrap/utils/bscu_wait.c:76): one of the processes terminated badly; aborting
[mpiexec at ubuntu] HYDT_bsci_wait_for_completion (tools/bootstrap/src/bsci_wait.c:23): launcher returned error waiting for completion
[mpiexec at ubuntu] HYD_pmci_wait_for_completion (pm/pmiserv/pmiserv_pmci.c:218): launcher returned error waiting for completion
[mpiexec at ubuntu] main (ui/mpich/mpiexec.c:344): process manager error waiting for completion


Since I’m pretty new to the MPI world, I kinda can’t get what did I did wrong - Did I do something wrong with ssh? Was it something else?

System Specifications:
- Ubuntu 14.04 64  bits
- gcc version 4.8.2
- While installing, fortran support was disable
- This system is running on a virtual machine


Network Specification:
- Two machines with the specifications above in a private virtual network
- One machine is called ubuntu and the other one is ubuntu-clone

Host Files:
- ubuntu
	- ubuntu
	- ubuntu-clone
- ubuntu-clone
	- ubuntu-clone
	- ubuntu


As you can see, the stack trace is from a command running on host ubuntu. The same error is razed when I run the same command on host ubuntu-clone.
Can anyone help me getting where I messed up?

Thanks in advance
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