The following is the information regarding the error. I am running Open MPI 1.2.5 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.


- The output of the "ompi_info --all" is attached with the email

- PATH Variable: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/maui/bin/:

- LD_LIBRARY_PATH variable was empty

- The following is the output of ifconfig on hpcc00 from where the error has been generated:

eth0      Link encap:Ethernet  HWaddr 00:12:3f:4c:2d:78

          inet addr:  Bcast:  Mask:

          inet6 addr: fe80::212:3fff:fe4c:2d78/64 Scope:Link


          RX packets:15912728 errors:0 dropped:0 overruns:0 frame:0

          TX packets:15312376 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:2951880321 (2.7 GB)  TX bytes:2788249498 (2.5 GB)



lo        Link encap:Local Loopback

          inet addr:  Mask:

          inet6 addr: ::1/128 Scope:Host

          UP LOOPBACK RUNNING  MTU:16436  Metric:1

          RX packets:3507489 errors:0 dropped:0 overruns:0 frame:0

          TX packets:3507489 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:1794266658 (1.6 GB)  TX bytes:1794266658 (1.6 GB)





From: [] 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:




I have been trying to execute the server.c and client.c program provided in, 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,

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