Strange - that shouldn&#39;t be happening. However, to get thru it, just restrict the interfaces OMPI uses. If it&#39;s the hardwired Ethernet that is causing the problem, then add<br><br>-mca oob_tcp_if_exclude en0 -mca btl_tcp_if_exclude en0<br>
<br>to your cmd line. If it&#39;s the wireless, then substitute en1 for en0 in the above.<br><br><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Dec 4, 2012 at 5:16 PM, Valentin Clement <span dir="ltr">&lt;<a href="mailto:valentin.clement@riken.jp" target="_blank">valentin.clement@riken.jp</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">Hi, <div><br></div><div>It seems, the problem is happening if I have two active interfaces on my computer. Is there any configuration to use MPI_Comm_spawn_multiple on a machine with multiple interfaces ? </div>
<div><br></div><div>Regards, </div><div><br></div><div>Valentin </div><div><br><div><div><div class="h5"><div>On Dec 3, 2012, at 3:00 PM, Valentin Clement &lt;<a href="mailto:valentin.clement@riken.jp" target="_blank">valentin.clement@riken.jp</a>&gt; wrote:</div>
<br></div></div><blockquote type="cite"><div><div class="h5"><div style="word-wrap:break-word">Hi, <div><br></div><div>I&#39;m using call to MPI_Comm_spawn_multiple in a quite big application. I&#39;ve seen a deadlock occurred in a very strange situation. If I&#39;m running my application on my Ubuntu 12.10 with OpenMPI 1.6.3 there is absolutely no problem. </div>
<div><br></div><div>On my Mac OS X 10.8.2 with also OpenMPI 1.6.3, I&#39;m experiencing a dead lock on an intrecommunicator resulting from the MPI_Comm_spawn_multiple only if my ethernet interface is enable. If I disable it, the deadlock is gone. </div>
<div><br></div><div>Anyone has an idea of what is happening ? I joined the output of ompi_info on both OS X and Linux. </div><div><br></div><div>Regards,</div><div><br></div><div>Valentin </div><div><br></div><div><br><div>
<div style="word-wrap:break-word"><div style="word-wrap:break-word"><div style="word-wrap:break-word"><div>-----------------------------------------------------------------------------------------</div><div>Valentin Clement - Student trainee at RIKEN AICS</div>
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<div>Master thesis project<br>POP-C++ on the K Computer <br>Project homepage: <a href="https://forge.tic.eia-fr.ch/projects/poponk" target="_blank">https://forge.tic.eia-fr.ch/projects/poponk</a><br>Project board: <a href="https://forge.tic.eia-fr.ch/projects/poponk/wiki/Wiki" target="_blank">https://forge.tic.eia-fr.ch/projects/poponk/wiki/Wiki</a><br>
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</div><br><div><div style="word-wrap:break-word"><div style="word-wrap:break-word"><div style="word-wrap:break-word"></div></div></div></div></div><div><div><div class="h5"><div>On Dec 3, 2012, at 3:00 PM, Valentin Clement &lt;<a href="mailto:valentin.clement@riken.jp" target="_blank">valentin.clement@riken.jp</a>&gt; wrote:</div>
<br></div></div><blockquote type="cite"><div><div class="h5"><div style="word-wrap:break-word">Hi, <div><br></div><div>I&#39;m using call to MPI_Comm_spawn_multiple in a quite big application. I&#39;ve seen a deadlock occurred in a very strange situation. If I&#39;m running my application on my Ubuntu 12.10 with OpenMPI 1.6.3 there is absolutely no problem. </div>
<div><br></div><div>On my Mac OS X 10.8.2 with also OpenMPI 1.6.3, I&#39;m experiencing a dead lock on an intrecommunicator resulting from the MPI_Comm_spawn_multiple only if my ethernet interface is enable. If I disable it, the deadlock is gone. </div>
<div><br></div><div>Anyone has an idea of what is happening ? I joined the output of ompi_info on both OS X and Linux. </div><div><br></div><div>Regards,</div><div><br></div><div>Valentin </div><div><br></div><div><br><div>

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<div>-----------------------------------------------------------------------------------------</div><div>Valentin Clement - Student trainee at RIKEN AICS</div><div>Programming Environment Research Team</div><div><a href="mailto:valentin.clement@hefr.ch" target="_blank">valentin.clement@hefr.ch</a></div>
<div><a href="mailto:valentin.clement@riken.jp" target="_blank">valentin.clement@riken.jp</a></div><div>Master thesis project<br>POP-C++ on the K Computer <br>Project homepage: <a href="https://forge.tic.eia-fr.ch/projects/poponk" target="_blank">https://forge.tic.eia-fr.ch/projects/poponk</a><br>
Project board: <a href="https://forge.tic.eia-fr.ch/projects/poponk/wiki/Wiki" target="_blank">https://forge.tic.eia-fr.ch/projects/poponk/wiki/Wiki</a><br>-----------------------------------------------------------------------------------------</div>
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<div>-----------------------------------------------------------------------------------------</div><div>Valentin Clement - Student trainee at RIKEN AICS</div><div>Programming Environment Research Team</div><div><a href="mailto:valentin.clement@hefr.ch" target="_blank">valentin.clement@hefr.ch</a></div>
<div><a href="mailto:valentin.clement@riken.jp" target="_blank">valentin.clement@riken.jp</a></div><div>Master thesis project<br>POP-C++ on the K Computer <br>Project homepage: <a href="https://forge.tic.eia-fr.ch/projects/poponk" target="_blank">https://forge.tic.eia-fr.ch/projects/poponk</a><br>
Project board: <a href="https://forge.tic.eia-fr.ch/projects/poponk/wiki/Wiki" target="_blank">https://forge.tic.eia-fr.ch/projects/poponk/wiki/Wiki</a><br>-----------------------------------------------------------------------------------------</div>
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