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Hi Nat, Thank you for the suggestion! I managed to get the following build: FFLAGS=-fallow-argument-mismatch ./configure --prefix=. . /Programs/mvapich-3. 0rc-rocm543-slurm --with-device=ch4: ofi --enable-rocm --with-rocm=$ROCM_PATH --with-ch4-shmmods=gpudirect
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Hi Nat,</div>
<div class="elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
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Thank you for the suggestion! I managed to get the following build:</div>
<div class="elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
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<div><span style="font-family: "Aptos Mono", Aptos_EmbeddedFont, Aptos_MSFontService, monospace; font-size: 12pt; color: rgb(0, 0, 0);">FFLAGS=-fallow-argument-mismatch ./configure --prefix=../Programs/mvapich-3.0rc-rocm543-slurm --with-device=ch4:ofi --enable-rocm
--with-rocm=$ROCM_PATH --with-ch4-shmmods=gpudirect --with-pm=slurm --with-pmi=cray --with-hwloc-prefix=$HWLOC_DIR</span></div>
<div class="elementToProof"><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"><br>
</span></div>
<div class="elementToProof"><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">However, the application runs much more slowly compared to Cray MPICH, and more importantly,
reduce and allreduce fail on subcommunicators created by <code>MPI_Comm_split</code> when the subcommunicator spans more than one node. The code I wrote to test this is here:
<a href="https://urldefense.com/v3/__https://bitbucket.org/Slaedr/mpi-hip-test-suite/src/main/__;!!KGKeukY!wkvuyan3pnRfrWSRl95R3lMXeYRXbBbn3zBwfExajU8_7YSZLHyEHpHBene9cv1z7yg6lvi9c7BKW8hclnxmWre15g$" id="LPlnk206765" class="OWAAutoLink">
https://bitbucket.org/Slaedr/mpi-hip-test-suite/src/main/</a> It's a simple CMake build with
<code>MPI_HOME</code> pointing to the MPI install directory. I ran the <code>comm_reduce</code> test using </span></div>
<div class="elementToProof"><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"><code>srun -n 16 -c 7 build/test/comm_reduce gpu</code> </span></div>
<div class="elementToProof"><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">on two nodes. The code essentially separates ranks 3 through 15 into a separate communicator
and calls <code>MPI_Allreduce</code> on that communicator. However, there's a segfault in the
<code>MPI_Allreduce</code>. When the communicator is <code>MPI_COMM_WORLD</code>, this works fine though.</span></div>
<div class="elementToProof"><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"><br>
</span></div>
<div class="elementToProof"><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">Should I try some other build setting for MVAPICH? Please let me know if I should provide
any more details.</span></div>
<div class="elementToProof"><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">Best,</span></div>
<div class="elementToProof"><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">Aditya</span></div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Shineman, Nat <shineman.5@osu.edu><br>
<b>Sent:</b> Wednesday, January 17, 2024 1:02 PM<br>
<b>To:</b> mvapich-discuss@lists.osu.edu <mvapich-discuss@lists.osu.edu>; Kashi, Aditya <kashia@ornl.gov><br>
<b>Cc:</b> Matheson, Michael <mathesonma@ornl.gov><br>
<b>Subject:</b> [EXTERNAL] Re: [Mvapich-discuss] libpmi2 could not be found while building for Slurm</font>
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Hi Aditya,</div>
<div class="x_elementToProof" style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
<br>
</div>
<div class="x_elementToProof" style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
We have found that typically Cray systems use a different version of PMI/PMI2 than is found on other slurm installations. Can you please try building with
<code>--with-pmi=cray</code> instead of giving the pmi2 path? This has been more successful in most tests that we have tried. If you are still having issues, sometimes you need to also add
<code>--with-craypmi=<path/to/craypmi/dir></code> to ensure the right version is picked up.</div>
<div class="x_elementToProof" style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
<br>
</div>
<div class="x_elementToProof" style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
Thanks,</div>
<div class="x_elementToProof" style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
Nat</div>
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<div id="x_divRplyFwdMsg" dir="ltr"><span style="font-family:Calibri,sans-serif; font-size:11pt; color:rgb(0,0,0)"><b>From:</b> Mvapich-discuss <mvapich-discuss-bounces+shineman.5=osu.edu@lists.osu.edu> on behalf of Kashi, Aditya via Mvapich-discuss <mvapich-discuss@lists.osu.edu><br>
<b>Sent:</b> Tuesday, January 9, 2024 18:18<br>
<b>To:</b> mvapich-discuss@lists.osu.edu <mvapich-discuss@lists.osu.edu><br>
<b>Cc:</b> Matheson, Michael <mathesonma@ornl.gov><br>
<b>Subject:</b> [Mvapich-discuss] libpmi2 could not be found while building for Slurm</span>
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<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">Hi everyone,</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)"><br>
</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">I'm trying to build MVAPICH 3.0rc on a Cray Shasta system with Slurm. This is my current build line:</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)"><br>
</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">FFLAGS=-fallow-argument-mismatch ./configure --with-pmi=pmi2 --enable-slurm --with-pm=slurm --enable-rocm --with-rocm=$ROCM_PATH
--with-libfabric=/opt/cray/libfabric/1.15.2.0 --with-pmi2-libdir=/usr/lib64/slurmpmi</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)"><br>
</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">It's able to find pmi2.h, but not libpmi2.so:</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)"><br>
</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">...</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">configure: RUNNING CONFIGURE FOR src/pm/slurm</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">checking for srun... /usr/bin/srun</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">checking slurm/pmi2.h usability... yes</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">checking slurm/pmi2.h presence... yes</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">checking for slurm/pmi2.h... yes</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">checking for /usr/include/slurm/pmi2.h... yes</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">./configure: line 60908: found: command not found</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">checking for PMI2_Init in -lpmi2... no</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">configure: error: could not find the slurm libpmi2. Configure aborted</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)"><br>
</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">However, I can see the file /usr/lib64/slurmpmi/libpmi2.so, which is symlinked to /usr/lib64/slurmpmi/libpmi2.so.0.0.0.
I've tried variations of the last flag like "--with-pmi-libdir", "--with-pmi2-lib=.../libpmi2.so" etc.</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)"><br>
</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">Is there a known way to build MVAPICH with a scalable backend on this kind of system? Getting the best possible performance
at scale is absolutely necessary for what I'm trying to do.</span></div>
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<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">Thanks,</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">Aditya Kashi</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">Analytics and AI Methods at Scale</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">Oak Ridge National Laboratory</span></div>
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