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<p class="MsoNormal"><span style="font-size:11.0pt">The benchmarks function properly with MVAPICH-GDR.<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">The failures seem to be attributed to the MPI library that the user is utilizing, and this issue has been communicated to the user.<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">-Akshay<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="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Mvapich-discuss <mvapich-discuss-bounces+panirajaguptha.1=osu.edu@lists.osu.edu>
<b>On Behalf Of </b>cx p via Mvapich-discuss<br>
<b>Sent:</b> Friday, May 17, 2024 6:25 AM<br>
<b>To:</b> mvapich-discuss@lists.osu.edu<br>
<b>Subject:</b> [Mvapich-discuss] Issues of benchmarks<o:p></o:p></span></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">Hello</span><span style="font-size:1.0pt;font-family:"MS Gothic";color:white">，</span><span style="font-size:1.0pt;color:white"> When I use one-sided benchmarks
that osu_fop_latency, osu_cas_latency and osu_acc_latency that related to atomic operations with device memory, issues occurred. My environment is shown as picture: . Benchmark command line is : mpirun
<o:p></o:p></span></p>
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<p class="MsoNormal"> <a href="https://us-phishalarm-ewt.proofpoint.com/EWT/v1/KGKeukY!vYQd06grTwoNIdn7n23qPHUppp5kQwnEmfQKmns6Qbu6kovGPSG1Exl9cAmlIGIeffbTkv1Q02Qk4jWDRqVjwxVe1RaSxoFrJ27DwkGYWT-JpSXwA5xDfTX_4ghSzbJYyE6qiA$" target="_blank"><strong><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black;border:solid #666666 1.0pt;padding:6.0pt;font-weight:normal;text-decoration:none"> Report Suspicious </span></strong></a>
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<p class="MsoNormal">Hello<span style="font-family:"MS Gothic"">，</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">When I use one-sided benchmarks that osu_fop_latency, osu_cas_latency and osu_acc_latency that related to atomic operations with device memory, issues occurred.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">My environment is shown as picture:<o:p></o:p></p>
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<p class="MsoNormal"> <img border="0" width="563" height="271" style="width:5.8666in;height:2.825in" id="Picture_x0020_1" src="cid:image001.png@01DAAB66.62E80E40"> .<o:p></o:p></p>
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<p class="MsoNormal">Benchmark command line is :<o:p></o:p></p>
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<p class="MsoNormal"> mpirun --allow-run-as-root -np 2 -H h800-125:1,h800-129:1 -x UCX_NET_DEVICES=mlx5_0:1 -x LD_LIBRARY_PATH /opt/hpc/software/osu-micro-benchmarks-7.4/mpi/one-sided/osu_fop_latency -d cuda
<b>D H</b><o:p></o:p></p>
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<p class="MsoNormal"> or<o:p></o:p></p>
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<p class="MsoNormal"> mpirun --allow-run-as-root -np 2 -H h800-125:1,h800-129:1 -x UCX_NET_DEVICES=mlx5_0:1 -x LD_LIBRARY_PATH /opt/hpc/software/osu-micro-benchmarks-7.4/mpi/one-sided/osu_fop_latency -d cuda
<b>D D</b> .<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Runtime error ! But Using "H D" is ok.<o:p></o:p></p>
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<p class="MsoNormal"> <img border="0" width="542" height="577" style="width:5.6416in;height:6.0083in" id="Picture_x0020_2" src="cid:image002.png@01DAAB66.62E80E40"><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Does rank 0 not supported to use GPU memory in atomic operation
<span style="font-family:"MS Gothic"">？</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">Thank you <span style="font-family:"MS Gothic"">！</span><o:p></o:p></p>
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