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Subject: Re: [OMPI users] Fwd: Problems with OpenMPI
From: Gus Correa (gus_at_[hidden])
Date: 2010-08-31 13:31:55


These FAQ may help:

Also, make sure the same OpenMPI is either installed on,
or accessible by (say via NFS) the "anotherhost".

Simple test: 'mpirun -np 8 --host [localhost,anotherhost] hostname'

Gus Correa

David Zhang wrote:
> Check firewall, network setting like subnet, and ssh keys?
> On 8/31/10, Osvaldo Reis <osvaldoreisss_at_[hidden]> wrote:
>> Hi, I wanted to use openmpi, I install with no errors, and when I run de
>> examples in local it work well, but when I specify another host to run it
>> doesn't work. There are no errors but the it doesn't show anything and don't
>> start the process in another host and don't stop to run in localhost. Then I
>> press Crtl+C to killl the process and it shows:
>> ^Cmpirun: killing job...
>> --------------------------------------------------------------------------
>> mpirun noticed that the job aborted, but has no info as to the process
>> that caused that situation.
>> --------------------------------------------------------------------------
>> --------------------------------------------------------------------------
>> mpirun was unable to cleanly terminate the daemons on the nodes shown
>> below. Additional manual cleanup may be required - please refer to
>> the "orte-clean" tool for assistance.
>> --------------------------------------------------------------------------
>> anotherhost - daemon did not report back when launched
>> I loot at /var/log/secure and it started the connection but after he close
>> without execute anything.
>> Running localhost
>> [user_at_host1 examples]$ mpirun -np 8 --host localhost ./hello_c
>> Hello, world, I am 0 of 8
>> Hello, world, I am 1 of 8
>> Hello, world, I am 2 of 8
>> Hello, world, I am 4 of 8
>> Hello, world, I am 5 of 8
>> Hello, world, I am 6 of 8
>> Hello, world, I am 7 of 8
>> Hello, world, I am 3 of 8
>> Running in another host
>> [user_at_host1 examples]$ mpirun -np 8 --host anotherhost ./hello_c
>> Some help please!
>> --
>> Osvaldo Reis Junior
>> Engenharia de Computação - UEPG
>> Laboratório de Genômica e Expressão - LGE
>> Universidade Estadual de Campinas - UNICAMP
>> MSN: osvaldoreis85_at_[hidden]
>> Skype: osvaldoreisss
>> Cel: (19) 8128-5273