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<p class="MsoNormal">I believe it means one of the node process was terminated unexpectedly. We’ll need more clue to make a guess on what is the actual cause.<o:p></o:p></p>
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<p class="MsoNormal">-- <br>
Hui Zhou<o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">"Mccall, Kurt E. (MSFC-EV41) via discuss" <discuss@mpich.org><br>
<b>Reply-To: </b>"discuss@mpich.org" <discuss@mpich.org><br>
<b>Date: </b>Monday, October 5, 2020 at 4:47 PM<br>
<b>To: </b>"discuss@mpich.org" <discuss@mpich.org><br>
<b>Cc: </b>"Mccall, Kurt E. (MSFC-EV41)" <kurt.e.mccall@nasa.gov><br>
<b>Subject: </b>[mpich-discuss] Intermittent MPICH error<o:p></o:p></span></p>
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<p class="MsoNormal">I am using MPICH 3.3.2 on Centos 3.10, Torque 5.1.1.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">I have never seen this error when running my MPI jobs as myself, but when other users run the same code, this error may or may not occur. It seems to happen when the job is shutting down.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#44546A">[mpiexec@n006.cluster.com] HYDU_sock_write (utils/sock/sock.c:256): write error (Bad file descriptor)</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#44546A">[mpiexec@n006.cluster.com] HYD_pmcd_pmiserv_send_signal (pm/pmiserv/pmiserv_cb.c:178): unable to write data to proxy</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#44546A">[mpiexec@n006.cluster.com] ui_cmd_cb (pm/pmiserv/pmiserv_pmci.c:77): unable to send signal downstream</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#44546A">[mpiexec@n006.cluster.com] HYDT_dmxu_poll_wait_for_event (tools/demux/demux_poll.c:77): callback returned error status</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#44546A">[mpiexec@n006.cluster.com] HYD_pmci_wait_for_completion (pm/pmiserv/pmiserv_pmci.c:196): error waiting for event</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#44546A">[mpiexec@n006.cluster.com] main (ui/mpich/mpiexec.c:336): process manager error waiting for completion</span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Does anyone have a clue what these errors mean? I hope this is enough info to go on. If not, please let me know what else I should provide.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Kurt<o:p></o:p></p>
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