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Exclusive striding mutually excludes ATM and non-ATM components from executing on cores assigned to ATM. This minimizes any core-sharing side-effects.

How to verify

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component-to-

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task placement

1. ./xmlchange INFO_MPROF=2 # to log memory usage profiling from every MPI process

2. zgrep "comps" run/e3sm.log*.gz # and look for "(pe= $task_id comps= cpl ICE GLC WAV IAC ESP)"

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