<div dir="ltr"><div dir="ltr">Hi again Hui. My apologies, I overlooked your singleton analogie with mpirun (<i>mpirun -n 1 ./prog...</i> ). Yes, in fact, it was one our first tries. These program we use is interactive and requires the <i>ncurses </i>library for that. I read some time ago a known problem with Open MPI implementation and <i>ncurses</i>. Unfortunately with MPICH we've experienced the same issue.</div><div>Best regards,</div><div><br></div><div>Martín<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Sep 23, 2020 at 9:28 PM Martín Morales <<a href="mailto:martineduardomorales@gmail.com">martineduardomorales@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr"><div>Hi Hui, thank you for your reply. Ok I'll create that issue then. We've a quite large PVM application. It has processes handling in a singleton fashion that it allows powerful functionality. We needed to port the PVM code to MPI in this exact way to preserve that functionality. We've done this already but with the Open MPI implementation. However we've found some inconsistencies in it and that's why I'm querying about this feature in MPICH.</div><div>Best regards</div><div><br></div><div>Martín<br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Sep 23, 2020 at 8:31 PM Zhou, Hui <<a href="mailto:zhouh@anl.gov" target="_blank">zhouh@anl.gov</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<p class="MsoNormal">It’s possible but not prioritized. Could you open an issue on github? When we have enough users requesting the feature (or when we have persistent user requesting it), the priority may be escalated.
<span style="font-family:"Apple Color Emoji"">😊</span> Meanwhile, could you describe the scenario that you have to use singleton init (vs. `mpirun -n 1 prog …`)?<u></u><u></u></p>
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<p class="MsoNormal">-- <br>
Hui Zhou<u></u><u></u></p>
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<p class="MsoNormal"><b><span style="font-size:12pt;color:black">From: </span></b><span style="font-size:12pt;color:black">Martín Morales via discuss <<a href="mailto:discuss@mpich.org" target="_blank">discuss@mpich.org</a>><br>
<b>Reply-To: </b>"<a href="mailto:discuss@mpich.org" target="_blank">discuss@mpich.org</a>" <<a href="mailto:discuss@mpich.org" target="_blank">discuss@mpich.org</a>><br>
<b>Date: </b>Wednesday, September 23, 2020 at 3:49 PM<br>
<b>To: </b>"<a href="mailto:discuss@mpich.org" target="_blank">discuss@mpich.org</a>" <<a href="mailto:discuss@mpich.org" target="_blank">discuss@mpich.org</a>><br>
<b>Cc: </b>Martín Morales <<a href="mailto:martineduardomorales@gmail.com" target="_blank">martineduardomorales@gmail.com</a>><br>
<b>Subject: </b>[mpich-discuss] Spawns without mpirun<u></u><u></u></span></p>
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<p class="MsoNormal">Hi all!<u></u><u></u></p>
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<p class="MsoNormal">I asked here some time ago about dynamically spawn processes from a singleton but the answer was that unfortunately, there was a problem with that and just It was not possible. I wonder now if this functionality is available.<u></u><u></u></p>
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<p class="MsoNormal">Best regards<u></u><u></u></p>
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<p class="MsoNormal">Martín<u></u><u></u></p>
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