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<p class="MsoNormal">Hello,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="line-height:13.35pt;background:white;vertical-align:baseline">
<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:EN-CA">I am running a multi-process calculations using </span><span style="font-size:10.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE;mso-fareast-language:EN-CA">MPICH2</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:EN-CA"> from
Argonne National Laboratory. The run is on a single machine, so </span><span style="font-size:10.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE;mso-fareast-language:EN-CA">-localonly</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:EN-CA"> option
of </span><span style="font-size:10.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE;mso-fareast-language:EN-CA">mpiexec</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:EN-CA"> is
used. Usually everything works.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt;line-height:13.35pt;background:white;vertical-align:baseline">
<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:EN-CA">If the network adapter is enabled when the run starts, and if I disable it during the run, the run fails with error stating:<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE;mso-fareast-language:EN-CA">op_read error on left context: Error = -1<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE;mso-fareast-language:EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE;mso-fareast-language:EN-CA">op_read error on parent context: Error = -1<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE;mso-fareast-language:EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE;mso-fareast-language:EN-CA">unable to read the cmd header on the left context, Error = -1<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE;mso-fareast-language:EN-CA">.<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE;mso-fareast-language:EN-CA">unable to read the cmd header on the parent context, Error = -1<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE;mso-fareast-language:EN-CA">.<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE;mso-fareast-language:EN-CA">Error posting readv, An existing connection was forcibly closed by the remote host.(10054)<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE;mso-fareast-language:EN-CA">connection to my parent broken, aborting.<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE;mso-fareast-language:EN-CA">state machine failed.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt;line-height:13.35pt;background:white;vertical-align:baseline">
<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:EN-CA">However, if the network adapter is disabled when the run is started, I can enable/disable the adapter as many times as I want, and the run still proceeds to
the end.<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:white;vertical-align:baseline">
<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:EN-CA">Is there a way to run </span><span style="font-size:10.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE;mso-fareast-language:EN-CA">mpiexec</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:EN-CA"> or
modify </span><span style="font-size:10.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE;mso-fareast-language:EN-CA">smpd</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:EN-CA"> configuration
such that </span><span style="font-size:10.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE;mso-fareast-language:EN-CA">MPICH2</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:EN-CA"> is
not using network adapter for inter-process communication for local runs even if the adapter is available when the run starts?<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Igor<o:p></o:p></p>
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