FMS1: Don't create IO domains for single-PE domain#1522
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## dev/gfdl #1522 +/- ##
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- Coverage 29.09% 29.09% -0.01%
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Files 239 239
Lines 71566 71567 +1
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- Hits 20825 20824 -1
- Misses 50741 50743 +2
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FMS mpp domain creation is done in the `clone_MD_to_d2D` function, and currently an IO domain is always created within the MPP domain. This has caused problems with single-PE runs in FMS1, where the `write_field` logic was not able to reach the part which removes halo data if an IO domain was present, and halo data was being written to the restart files. This issue arose when `PARALLEL_RESTARTFILES` was set to `True` for single-PE tests. This does not appear to be a problem with FMS2, and no action is needed by the FMS team.
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Hallberg-NOAA
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Oct 25, 2021
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The logic behind this PR is sound, and it should be merged in as it has now passed both TC testing and pipeline testing at https://gitlab.gfdl.noaa.gov/ogrp/MOM6/-/pipelines/13911.
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FMS mpp domain creation is done in the
clone_MD_to_d2Dfunction, andcurrently an IO domain is always created within the MPP domain.
This has caused problems with single-PE runs in FMS1, where the
write_fieldlogic was not able to reach the part which removes halodata if an IO domain was present, and halo data was being written to the
restart files.
This issue arose when
PARALLEL_RESTARTFILESwas set toTrueforsingle-PE tests.
This does not appear to be a problem with FMS2, and no action is needed
by the FMS team.