Try disabling firewalling between your nodes.  The easiest way is "sudo service 
iptables stop".


On Jan 16, 2013, at 7:46 AM, borja mf <borjamunozfernan...@gmail.com>
 wrote:

> Hello all. 
> I want to learn MPI and I've trying to setting up OMPI for first time on 
> three nodes. My config above:
> Ubuntu server - master node: pruebaborja 
> 2x Ubuntu Desktop - slaves node:  
> clienteprueba
> clientepruebados 4 slots
> 
> Im running NFSv4 for sharing /home/mpiuser.
> I want to test a plain "Hello world"but I can't make it working successfully 
> on node clienteprueba. This is the problem:
> 
> mpiuser@pruebaborja:~$ mpirun -np 6 --hostfile .mpi_hostfile ./holamundo
> [clienteprueba:01993] [[64434,0], 2] -> [[64434,0],0] 
> mca_oob_tcp_msg_send_handler: writev:failed: Bad file descriptor (9) [sd = 9]
> [clienteprueba:01993] [[64434,0], 2] routed:binomial: Connection to lifeline 
> [[64434,0],0] lost
> 
> However, with clientepruebados and pruebaborja only on my hostfile, it works:
> 
> pruebaborja slots=1
> clientepruebados slots=4
> #clienteprueba slots=1
> 
> mpiuser@pruebaborja:~$ mpirun -np 6 --hostfile .mpi_hostfile ./holamundo
> Hola, mundo, soy pruebaborja: 0 de 6
> Hola, mundo, soy pruebaborja: 5 de 6
> Hola, mundo, soy clientepruebados: 1 de 6
> Hola, mundo, soy clientepruebados: 2 de 6
> Hola, mundo, soy clientepruebados: 3 de 6
> Hola, mundo, soy clientepruebados: 4 de 6
> 
> I've checked the OMPI versions on the machines and it's the same. I can't 
> understand why Im getting this error on clienteprueba; i've done the same 
> config on  clientepruebados and clienteprueba. Anyone could help me to solve 
> this?
> 
> Sorry for my english. 
> Thanks in advance
> 
> 
> _______________________________________________
> users mailing list
> us...@open-mpi.org
> http://www.open-mpi.org/mailman/listinfo.cgi/users


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