E3SM-Project / E3SM-Project/E3SM
non-BFB normalVelocity in wetting/drying test case for MPAS-O when using more than 9 procs
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@jonbob is already working on this.
Since Oct 7, 2025.
MPAS-ocean
MPAS-Ocean standalone
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Description
The `normalVelocity` is not BFB compared to a serial run when using 10 or more (I tested 11,12 and 13) processes in parallel.
This has been observed in the Compass test case called: `ocean/drying_slope/1km/single_layer/ramp`.
The results are instead BFB when running with 2,3,...,9 processes.
See also companion issue on Compass Github: https://github.com/MPAS-Dev/compass/issues/686
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