Test: Use environment variable instead to allow OpenMPI run as root#7617
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Growl1234
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ZhouXY-PKU
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Jul 11, 2026
mohanchen
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Only OpenMPI supports the
--allow-run-as-rootflag, so the tests would fail whenever ABACUS is built with another MPI implementation, such as MPICH or Intel MPI. Using environment variables avoids the need for this flag; other MPI implementations and programs will simply ignore these variables, thereby avoiding errors caused by an unrecognized--allow-run-as-rootoption.