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<p class="MsoNormal"><span style="font-family:Consolas">Brice,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:Consolas"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:Consolas">I'll take a look. Maybe I built lstopo or something at some point and it's hanging around...<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:Consolas"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:Consolas">Matt<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:Consolas"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:Consolas">-- <o:p></o:p></span></p>
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<p class="MsoNormal" style="text-autospace:none"><span style="font-family:Consolas">Matt Thompson, SSAI, Ld Scientific Programmer/Analyst<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-family:Consolas">NASA GSFC, Global Modeling and Assimilation Office<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-family:Consolas">Code 610.1, 8800 Greenbelt Rd, Greenbelt, MD 20771<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-family:Consolas">Phone: 301-614-6712 Fax: 301-614-6246<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><u><span style="font-family:Consolas;color:#0000E9">http://science.gsfc.nasa.gov/sed/bio/matthew.thompson</span></u><span style="font-family:Consolas"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:Consolas"><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">Brice Goglin <Brice.Goglin@inria.fr><br>
<b>Date: </b>Tuesday, December 14, 2021 at 5:37 PM<br>
<b>To: </b><discuss@mpich.org><br>
<b>Cc: </b>"Thompson, Matt (GSFC-610.1)[SCIENCE SYSTEMS AND APPLICATIONS INC]" <matthew.thompson@nasa.gov><br>
<b>Subject: </b>[EXTERNAL] Re: [mpich-discuss] Help Building MPICH 4.0b1: undefined references to hwloc<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">Le 14/12/2021 à 21:40, Thompson, Matt (GSFC-610.1)[SCIENCE SYSTEMS AND APPLICATIONS INC] via discuss a écrit :<o:p></o:p></p>
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<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span style="font-family:Consolas">MPICH Discuss,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">I'm sure I've done something stupid, but I'm not sure what. I tried searching google, but my google-fu failed me.
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">Today I decided to try and build MPICH 4.0b1 on a cluster I'm on (NCCS Discover) using GCC 11.2. My configure line was quite boring:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">./configure CC=gcc CXX=g++ FC=gfortran \</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas"> FCFLAGS=-fallow-argument-mismatch \</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas"> FFLAGS=-fallow-argument-mismatch \</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas"> --prefix=/discover/swdev/gmao_SIteam/MPI/mpich/4.0b1/gcc-11.2.0
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">The MPICH configure step was nice enough to let me know I needed those FFLAGS and FCFLAGS. And it configured just happily.[1]</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">When I went to the make step I eventually it errored out with:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">make[3]: Entering directory '/gpfsm/dswdev/gmao_SIteam/MPI/src/mpich-4.0b1/src/pm/hydra'</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas"> CCLD libpm.la</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas"> CCLD hydra_persist</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">/usr/bin/ld: /discover/swdev/gmao_SIteam/MPI/src/mpich-4.0b1/src/pm/hydra/.libs/libhydra.a(topo_hwloc.o): in function `HYDT_topo_hwloc_init':</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">/discover/swdev/gmao_SIteam/MPI/src/mpich-4.0b1/src/pm/hydra/tools/topo/hwloc/topo_hwloc.c:577: undefined reference to `hwloc_topology_set_io_types_filter'</span><o:p></o:p></p>
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<p><o:p> </o:p></p>
<p>Hello<o:p></o:p></p>
<p>I think this error usually occurs when compiling against hwloc 2.x (such as the one embedded inside MPICH) but linking against an old hwloc 1.x. Do you have such an old hwloc installed on this machine? The first line below likely says yes. I don't know why
configure would mix them like this, but you should be able to avoid the error by uninstalling the old hwloc (or with a chmod 0 on its libhwloc.so during your configure).<o:p></o:p></p>
<p>Brice<o:p></o:p></p>
<p><o:p> </o:p></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Consolas">checking if hwloc meets minimum version requirement... no</span><span style="font-size:11.0pt">
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:Consolas">configure: ===== configuring modules/hwloc =====</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">...</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">### Configuring hwloc core</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">###</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">checking hwloc building mode... embedded</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">configure: hwloc builddir: /discover/swdev/gmao_SIteam/MPI/src/mpich-4.0b1/modules/hwloc</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">configure: hwloc srcdir: /discover/swdev/gmao_SIteam/MPI/src/mpich-4.0b1/modules/hwloc</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">...</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas"><br>
<br>
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">And I can't see anything in the output that it's somehow picking up on an hwloc I might have installed somewhere else (be it Open MPI or just hwloc by hand).</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">Maybe there are flags I need to pass? I do see reference to --with-hwloc=embedded, but it looks like configure decided to use that itself.
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">Thanks for any help,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">Matt</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">[1] Note: I'm building on an Infiniband system so maybe I need to do a build with --with-device=ch4:ucx eventually, but that's a runtime thing. I figure it can't be involved with this error...right?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:Consolas">-- </span><o:p></o:p></p>
<div>
<p class="MsoNormal" style="text-autospace:none"><span style="font-family:Consolas">Matt Thompson, SSAI, Ld Scientific Programmer/Analyst</span><o:p></o:p></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-family:Consolas">NASA GSFC, Global Modeling and Assimilation Office</span><o:p></o:p></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-family:Consolas">Code 610.1, 8800 Greenbelt Rd, Greenbelt, MD 20771</span><o:p></o:p></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-family:Consolas">Phone: 301-614-6712 Fax: 301-614-6246</span><o:p></o:p></p>
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<p class="MsoNormal"><u><span style="font-family:Consolas;color:#0000E9"><a href="http://science.gsfc.nasa.gov/sed/bio/matthew.thompson">http://science.gsfc.nasa.gov/sed/bio/matthew.thompson</a></span></u><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><br>
<br>
<o:p></o:p></span></p>
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