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<p class="MsoNormal">Sorry, I just membered now that there is a bug in 3.3.2 which we fixed in
<a href="https://github.com/pmodels/mpich/pull/4320/">https://github.com/pmodels/mpich/pull/4320/</a>. If you can upgrade your mpich to recent releases, such as 3.4,
<a href="https://www.mpich.org/downloads/">https://www.mpich.org/downloads/</a>, it should fix the issue.<o:p></o:p></p>
<p class="MsoNormal"><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" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">Hirakjyoti Sarma via discuss <discuss@mpich.org><br>
<b>Date: </b>Tuesday, January 5, 2021 at 11:21 PM<br>
<b>To: </b>discuss@mpich.org <discuss@mpich.org><br>
<b>Cc: </b>Hirakjyoti Sarma <herockx1995@gmail.com><br>
<b>Subject: </b>Re: [mpich-discuss] [discuss-mpich]Error while using mpirun<o:p></o:p></span></p>
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<p class="MsoNormal">actually the hostname <b>hirakjyoti-HP-dx2480-MT-KL969AV </b>
was already there in the /etc/hosts file :<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">127.0.1.1 hirakjyoti-HP-dx2480-MT-KL969AV<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Tue, 5 Jan 2021 at 05:37, Tony Curtis via discuss <<a href="mailto:discuss@mpich.org">discuss@mpich.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">On Jan 4, 2021, at 11:59 AM, Hirakjyoti Sarma via discuss <<a href="mailto:discuss@mpich.org" target="_blank">discuss@mpich.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Dear all,<o:p></o:p></p>
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<p class="MsoNormal">I get the following error while running LAMMPS on ubuntu <b>without an internet connection.</b><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>Invalid error code (-2) (error ring index 127 invalid)<br>
Invalid error code (-2) (error ring index 127 invalid)<br>
INTERNAL ERROR: invalid error code fffffffe (Ring Index out of range) in MPID_nem_tcp_init:373<br>
Fatal error in PMPI_Init: Other MPI error, error stack:<br>
MPIR_Init_thread(586)..............: <br>
MPID_Init(224).....................: channel initialization failed<br>
MPIDI_CH3_Init(105)................: <br>
MPID_nem_init(324).................: <br>
MPID_nem_tcp_init(175).............: <br>
MPID_nem_tcp_get_business_card(401): <br>
MPID_nem_tcp_init(373).............: gethostbyname failed, hirakjyoti-HP-dx2480-MT-KL969AV (errno 0)</b><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">But if the PC is connected to internet LAMMPS successfully run. <o:p></o:p></p>
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<p class="MsoNormal">How can i solve the problem?<o:p></o:p></p>
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<p class="MsoNormal">This looks like a local hostname resolution issue. Maybe you could just add your hostname (presumably “<b>hirakjyoti-……”)</b> to the localhost entry in /etc/hosts and then when offline you’d resolve over loopback? Assuming it’s a single
machine.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">tony<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">_______________________________________________<br>
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