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Hi, John I assume Improv is a cross-compiling environment. On such an environment, the executables are supposed to run on the compute nodes, instead of login nodes. Can you try running "make ptest" in the interactive mode of qsub?</div>
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Hi, John
<div><br>
</div>
<div>I assume Improv is a cross-compiling environment.</div>
<div>On such an environment, the executables are supposed to run</div>
<div>on the compute nodes, instead of login nodes.</div>
<div><br>
</div>
<div>Can you try running "make ptest" in the interactive mode of qsub?</div>
<div>Also, set the output file folder to a folder on the scratch GPFS file</div>
<div>system. This can be done by setting <span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">TESTOUTDIR, for example</span>,</div>
<div>"make ptest TESTOUTDIR=/lcrc/your/project/folder"</div>
<div><br>
</div>
<div>The error message "Bad file descriptor" hints this problem <span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">probably</span> come</div>
<div>from MPI-IO. OpenMPI 4.1.5 is quite old. Maybe try a newer <span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">one? </span>The latest</div>
<div>release of OpenMPI is 5.0.7.</div>
<div><br id="lineBreakAtBeginningOfMessage">
<div>Wei-keng </div>
<div><br>
<blockquote type="cite">
<div>On Apr 4, 2025, at 12:27 PM, Low, John J. <jlow@mcs.anl.gov> wrote:</div>
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To Whom It May Concern:</div>
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<br>
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I have built pnetcdf 1.14.0 with the Intel Classic Compilers 2021.6.0 and openmpi/4.1.5 on<a href="https://urldefense.com/v3/__https://www.lcrc.anl.gov/systems/improv__;!!Dq0X2DkFhyF93HkjWTBQKhk!WW8IV_sSJhTG9Qe03oym_xgfIyBYjyvS2Eo3PUDfjAXNlz3TvugBYYapVfzoLiqtbdYlCSiGMJlveYIgq1l_$" id="LPlnk653614" title="https://www.lcrc.anl.gov/systems/improv">Argonne's
Improv Cluster</a>. It is a cluster of 825 nodes with two<span style="font-weight: 600;"> AMD EPYC 7713 64C 2GHz processors with an Infiniband HDR200 interconnect.</span></div>
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<br>
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This build passes the serial tests but fails the parallel test invoked with the command "make ptests"</div>
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<br>
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The third test in examples/C fails with the following error.</div>
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Error mmapping the file: Bad file descriptor</div>
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I have attached a config.log, output, and error.log from the failed test.</div>
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Any help in resolving this issue would be greatly appreciated.</div>
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John J. Low<br>
Principal Computational Science Specialist<br>
Computational Science (CPS) Division<br>
Building 240, 2143<br>
9700 South Cass Avenue<br>
Argonne National Laboratory<br>
Argonne, IL 60439.<br>
</div>
<span id="cid:E5B6A46C-A216-414B-A0C3-7FF2B103B0B3"><config.log></span><span id="cid:39BBB4B5-FAF1-4712-8A64-AB66E24C23D1"><ptest.pbs.o774626></span><span id="cid:2E5B2046-9C2D-4D19-98E4-893199E3677F"><ptest.pbs.e774626></span></div>
</blockquote>
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