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<div style="font-size: 14px;">Hello,</div>
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<div style="font-size: 14px;">I have recently installed Maker on RHEL 7/ Perl-5.16.3. When I attempt to execute, I get the following error</div>
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<div>$ <span style="font-family: Menlo;">mpiexec -n 4 maker -help</span></div>
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<p style="margin: 0px; font-family: Menlo;">An MPI process has executed an operation involving a call to the</p>
<p style="margin: 0px; font-family: Menlo;">"fork()" system call to create a child process. Open MPI is currently</p>
<p style="margin: 0px; font-family: Menlo;">operating in a condition that could result in memory corruption or</p>
<p style="margin: 0px; font-family: Menlo;">other system errors; your MPI job may hang, crash, or produce silent</p>
<p style="margin: 0px; font-family: Menlo;">data corruption. The use of fork() (or system() or other calls that</p>
<p style="margin: 0px; font-family: Menlo;">create child processes) is strongly discouraged. </p>
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<p style="margin: 0px; font-family: Menlo;">The process that invoked fork was:</p>
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<p style="margin: 0px; font-family: Menlo;"> Local host: submit (PID 316)</p>
<p style="margin: 0px; font-family: Menlo;"> MPI_COMM_WORLD rank: 2</p>
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<p style="margin: 0px; font-family: Menlo;">If you are *absolutely sure* that your application will successfully</p>
<p style="margin: 0px; font-family: Menlo;">and correctly survive a call to fork(), you may disable this warning</p>
<p style="margin: 0px; font-family: Menlo;">by setting the mpi_warn_on_fork MCA parameter to 0.</p>
<p style="margin: 0px; font-family: Menlo;">--------------------------------------------------------------------------</p>
<p style="margin: 0px; font-family: Menlo;">[submit:122878] 3 more processes have sent help message help-mpi-runtime.txt / mpi_init:warn-fork</p>
<p style="margin: 0px; font-family: Menlo;">[submit:122878] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages</p>
<p style="margin: 0px; font-family: Menlo;">[submit bin]$ mpiexec --version</p>
<p style="margin: 0px; font-family: Menlo;">mpiexec (OpenRTE) 1.8.4</p>
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<div>I have a previous version of Maker installed that is using OpenMPI 1.3.3 and it is working fine. I was wondering if you think this might be related to the version of OpenMPI?</div>
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<div>Thank you in advance.</div>
<div>Jackie</div>
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