Thanks for your reply.

I am running MPI 2.0 on Ubuntu 4.2.4, kernel version 2.6.24.

I ran the server program as mpirun –np 1 server. This program gave me the output port as 0.1.0:2000. I used this port name value as the command line argument for the client program: mpirun –np 1 client 0.1.1:2000

Regards,

Blesson.

From: users-bounces@open-mpi.org [mailto:users-bounces@open-mpi.org] On Behalf Of Ralph Castain
Sent: 29 September 2009 23:59
To: Open MPI Users
Subject: Re: [OMPI users] MPI_Comm_accept()/connect() errors

I will ask the obvious - what version of Open MPI are you running? In what environment? What was your command line?

:-)

On Sep 29, 2009, at 3:50 PM, Blesson Varghese wrote:

Hi,

I have been trying to execute the server.c and client.c program provided in http://www.mpi-forum.org/docs/mpi21-report/node213.htm#Node213, using accept() and connect() function in MPI. However, the following errors are generated.

[hpcc00:16522] *** An error occurred in MPI_Comm_connect

[hpcc00:16522] *** on communicator MPI_COMM_WORLD

[hpcc00:16522] *** MPI_ERR_INTERN: internal error

[hpcc00:16522] *** MPI_ERRORS_ARE_FATAL (goodbye)

Could anybody please help me?

Many thanks,
Blesson.

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