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There are more MPI processes than the number of unique GPU devices. This is not necessarily a problem.
For example this could happen when a device such as MI300A is partitioned into multiple subdevices.!
amrex::Abort::1::MLMG failed. !!!
SIGABRT
amrex::Abort::0::MLMG failed. !!!
SIGABRT
See Backtrace.1 file for details
See Backtrace.0 file for details
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MPI_ABORT was invoked on rank 1 in communicator MPI_COMM_WORLD
with errorcode 6.

NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.
You may or may not see output from other processes, depending on
exactly when Open MPI kills them.
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