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The output to standard out from running on 2 nodes and one process per node is attached. From: Zhou, Hui <zhouh@ anl. gov> Date: Tuesday, June 11, 2024 at 5: 49 PM To: discuss@ mpich. org <discuss@ mpich. org> Cc: Palmer, Bruce J <Bruce. Palmer@ pnnl. gov>
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<p class="MsoNormal"><span style="font-size:11.0pt">The output to standard out from running on 2 nodes and one process per node is attached.<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" style="margin-bottom:12.0pt"><b><span style="color:black">From:
</span></b><span style="color:black">Zhou, Hui <zhouh@anl.gov><br>
<b>Date: </b>Tuesday, June 11, 2024 at 5:49</span><span style="font-family:"Arial",sans-serif;color:black"> </span><span style="color:black">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>Re: Fail on MPI_Wait<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">>MPIDI_OFI_handle_cq_error(793): OFI poll failed (ofi_events.c:793:MPIDI_OFI_handle_cq_error:Input/output error)<br>
<br>
This is an error coming from the libfabric provider. First we need find out which provider are you using. Try set environment variable
</span><code><span style="font-size:10.0pt;color:black">MPIR_CVAR_DEBUG_SUMMARY=1</span></code><span style="font-family:"Arial",sans-serif;color:black"></span><span style="color:black"> and run a simple
</span><code><span style="font-size:10.0pt;color:black">MPI_INIT+MPI_Finalize</span></code><span style="font-family:"Arial",sans-serif;color:black"></span><span style="color:black"> test code. Could post its console output?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:black">--<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Hui<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"> Palmer, Bruce J via discuss <discuss@mpich.org><br>
<b>Sent:</b> Tuesday, June 11, 2024 3:17 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] Fail on MPI_Wait</span> <o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span style="font-size:1.0pt;color:white">Hi, I’m trying to debug a GPU-aware runtime for the Global Arrays library. We had a version of this working a while ago, but it has mysteriously started failing
and we are trying to track down why. Currently, we are getting failures in MPI_Wait
<o:p></o:p></span></p>
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<p class="xmsonormal">Hi,<o:p></o:p></p>
<p class="xmsonormal"> <o:p></o:p></p>
<p class="xmsonormal">I’m trying to debug a GPU-aware runtime for the Global Arrays library. We had a version of this working a while ago, but it has mysteriously started failing and we are trying to track down why. Currently, we are getting failures in MPI_Wait
and were wondering if anyone could provide some information on what exactly seems to be failing inside the wait call. The error we are getting is<o:p></o:p></p>
<p class="xmsonormal"> <o:p></o:p></p>
<p class="xp1"><span class="xs1">Abort(206752655) on node 0: Fatal error in internal_Wait: Other MPI error, error stack:</span><o:p></o:p></p>
<p class="xp1"><span class="xs1">internal_Wait(68205)..........: </span><span class="xs2">MPI_Wai</span><span class="xs1">t(request=0x500847a0, status=0x7ffff9331800) failed</span><o:p></o:p></p>
<p class="xp1"><span class="xs1">MPIR_Wait(780)................:</span><o:p></o:p></p>
<p class="xp1"><span class="xs1">MPIR_Wait_state(737)..........:</span><o:p></o:p></p>
<p class="xp1"><span class="xs1">MPIDI_progress_test(134)......:</span><o:p></o:p></p>
<p class="xp1"><span class="xs1">MPIDI_OFI_handle_cq_error(793): OFI poll failed (ofi_events.c:793:MPIDI_OFI_handle_cq_error:Input/output error)</span><o:p></o:p></p>
<p class="xmsonormal"> <o:p></o:p></p>
<p class="xmsonormal">I’ve verified that the handle corresponding to <span class="xs1">
0x500847a0 is getting set earlier in the code in an MPI_Isend call and that no MPI_Wait or MPI_Test is called on the handle before it crashes with the above error message. I’m using MPICH 4.2.1 using gcc/8.3.0. The MPICH library was configured with</span><o:p></o:p></p>
<p class="xmsonormal"><span class="xs1"> </span><o:p></o:p></p>
<p class="xp1"><span class="xs1">../configure --prefix=/people/d3g293/mpich/mpich-4.2.1/build_newell/install \</span><o:p></o:p></p>
<p class="xp1"><span class="xapple-converted-space"> </span><span class="xs1">--with-device=ch4:ofi:sockets --with-libfabric=embedded \</span><o:p></o:p></p>
<p class="xp1"><span class="xapple-converted-space"> </span><span class="xs1">--without-ucx --enable-threads=multiple --with-slurm \</span><o:p></o:p></p>
<p class="xp1"><span class="xapple-converted-space"> </span><span class="xs1">CC=gcc CXX=g+</span><o:p></o:p></p>
<p class="xmsonormal"> <o:p></o:p></p>
<p class="xmsonormal">I’ve tried building with UCX and gotten the same results.<o:p></o:p></p>
<p class="xmsonormal"> <o:p></o:p></p>
<p class="xmsonormal">Are these errors indicative of corruption of the request handle or problems with some internal MPI data structures or something else? Any information you can provide would be appreciated.<o:p></o:p></p>
<p class="xmsonormal"><br>
Thanks,<o:p></o:p></p>
<p class="xmsonormal">Bruce<o:p></o:p></p>
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