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<p class="MsoNormal"><span style="font-size:11.0pt">Hi Hui,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I rebuilt everything from scratch and tried running several versions of mpich. Release 3.3.1 seems to work okay but 3.3.2 hangs. Here is a complete summary of the versions I ran<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">3.3rc1: Works<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">3.3: Works<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">3.3.1: Works<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">3.3.2: Hangs<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">3.4a2: Hangs<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I’m not seeing the error message from hydra anymore (I have no idea why not), but I logged into one of the hung processes when running with 3.3.2 and got the following listing from gdb<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:8.5pt;font-family:Menlo;color:black">(gdb) where<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:8.5pt;font-family:Menlo;color:black">#0 0x0000003d7ce0e810 in __read_nocancel () from /lib64/libpthread.so.0<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:8.5pt;font-family:Menlo;color:black">#1 0x00002aaaac6e936e in PMIU_readline () from /people/d3g293/mpich/mpich-3.3.2/install/lib/libmpi.so.12<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:8.5pt;font-family:Menlo;color:black">#2 0x00002aaaac6e985b in GetResponse.part.0 () from /people/d3g293/mpich/mpich-3.3.2/install/lib/libmpi.so.12<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:8.5pt;font-family:Menlo;color:black">#3 0x00002aaaac6e4e36 in MPIDU_shm_seg_commit () from /people/d3g293/mpich/mpich-3.3.2/install/lib/libmpi.so.12<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:8.5pt;font-family:Menlo;color:black">#4 0x00002aaaabc541dc in MPIR_Init_thread () from /people/d3g293/mpich/mpich-3.3.2/install/lib/libmpi.so.12<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:8.5pt;font-family:Menlo;color:black">#5 0x00002aaaabc3db7e in PMPI_Init () from /people/d3g293/mpich/mpich-3.3.2/install/lib/libmpi.so.12<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:8.5pt;font-family:Menlo;color:black">#6 0x0000000000408d0e in main ()<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Bruce<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">"Zhou, Hui" <zhouh@anl.gov><br>
<b>Date: </b>Monday, April 20, 2020 at 10:25 AM<br>
<b>To: </b>"discuss@mpich.org" <discuss@mpich.org><br>
<b>Cc: </b>"Palmer, Bruce J" <Bruce.Palmer@pnnl.gov><br>
<b>Subject: </b>Re: [mpich-discuss] MPICH configure<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">The error is from `hydra`, which should not have changed much between the versions. Could you verify that 3.3.1 still works for you?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">-- <br>
Hui Zhou</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">"Palmer, Bruce J via discuss" <discuss@mpich.org><br>
<b>Reply-To: </b>"discuss@mpich.org" <discuss@mpich.org><br>
<b>Date: </b>Thursday, April 16, 2020 at 5:48 PM<br>
<b>To: </b>"discuss@mpich.org" <discuss@mpich.org><br>
<b>Cc: </b>"Palmer, Bruce J" <Bruce.Palmer@pnnl.gov><br>
<b>Subject: </b>[mpich-discuss] MPICH configure</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Hi,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I’ve been building MPICH on are aging Infiniband cluster using the following formula</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="p1"><span class="s1">./configure --prefix=/people/d3g293/mpich/mpich-3.3.2/install --with-device=ch4:ofi:sockets --with-libfabric=embedded --enable-threads=multiple --with-slurm CC=gcc CXX=g++</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">It’s been working pretty well but I recently tried to build mpich-3.3.2 and mpich-3.4a2 and although the build seems to work okay, I’m having problems actually running anything. If I run on 2 nodes the code
seems to hang on MPI_Init and it looks like it is producing the error message</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="p1"><span class="s1">[proxy:0:1@node013.local] HYDU_sock_connect (utils/sock/sock.c:145): unable to connect from "node013.l</span><o:p></o:p></p>
<p class="p1"><span class="s1">ocal" to "node012.local" (Connection refused)</span><o:p></o:p></p>
<p class="p1"><span class="s1">[proxy:0:1@node013.local] main (pm/pmiserv/pmip.c:183): unable to connect to server node012.local at p</span><o:p></o:p></p>
<p class="p1"><span class="s1">ort 37769 (check for firewalls!)</span><o:p></o:p></p>
<p class="p1"><span class="s1">srun: error: node013: task 1: Exited with exit code 5</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">If I run on a single node, things seem to work. Any idea what is going on here? I’ve got a working build of mpich-3.3, so things were okay up until recently. Has something in MPICH changed and my configuration
formula is no good, or is this more likely to be due to some system modification?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Bruce Palmer</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Senior Research Scientist</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Pacific Northwest National Laboratory</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Richland, WA 99352</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">(509) 375-3899</span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
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