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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Hi,<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I am running MPI 2.0 on Ubuntu 4.2.4, kernel version 2.6.24.<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>I
have been trying to execute the server.c and client.c program provided in<span
class=apple-converted-space>&nbsp;</span><a
href="http://www.mpi-forum.org/docs/mpi21-report/node213.htm#Node213">http://www.mpi-forum.org/docs/mpi21-report/node213.htm#Node213</a>,
using accept() and connect() function in MPI. However, the following errors are
generated.<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>[hpcc00:16522]
*** An error occurred in MPI_Comm_connect<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>[hpcc00:16522]
*** on communicator MPI_COMM_WORLD<o:p></o:p></span></p>

<p class=MsoNormal><span lang=DE style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>[hpcc00:16522]
*** MPI_ERR_INTERN: internal error<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>[hpcc00:16522]
*** MPI_ERRORS_ARE_FATAL (goodbye)<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<span
style='color:#1F497D'><o:p></o:p></span></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I ran the server program as mpirun &#8211;np 1 server. This
program gave me the output port as 0.1.0:2000. I used this port name as the
command line argument to execute the client program as mpirun &#8211;np 1
client 0.1.1:2000<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Could
you please advice?<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Many
thanks,<br>
Blesson.<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p>&nbsp;</o:p></span></p>

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