+(*)Add ALTERNATE_FIRST_DIRECTION#1501
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marshallward merged 2 commits intoOct 1, 2021
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Added a new runtime parameter, ALTERNATE_FIRST_DIRECTION, to cause the first direction in the directionally split operators (such as the continuity solver, the barotropic solver, and the tracer advection) to alternate with every dynamic timestep. This includes changes to record this direction in the restart file, so that the model will reproduce across restarts. In addition a previously uninitialized logical in offline_advection_layer is now being initialized similarly to other similar variables in the MOM_offline_main module. By default, all answers in the MOM6-examples are bitwise identical, but there is a new runtime parameter and a new non-mandatory field in the MOM6 restart files, and there might be changes in offline tracer advection runs.
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@@ Coverage Diff @@
## dev/gfdl #1501 +/- ##
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Coverage 29.05% 29.06%
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Files 237 237
Lines 71629 71645 +16
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+ Hits 20812 20822 +10
- Misses 50817 50823 +6
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marshallward
reviewed
Oct 1, 2021
Collaborator
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Gaea regression: https://gitlab.gfdl.noaa.gov/ogrp/MOM6/-/jobs/69534 ✔️ 🟠 New parameter:
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marshallward
approved these changes
Oct 1, 2021
herrwang0
reviewed
Oct 14, 2021
| call set_first_direction(G, NINT(CS%first_dir_restart)) | ||
| ! Store the first direction for the next time a restart file is written. | ||
| CS%first_dir_restart = real(G%first_direction) | ||
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Contributor
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Just found a bug that First_direction from restart is not used, and it is traced back to this piece of code.
I think this section of added code is misplaced; it is within the if(CS%rotate_index) block. Should it be moved outside?
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Added a new runtime parameter, ALTERNATE_FIRST_DIRECTION, to cause the first
direction in the directionally split operators (such as the continuity solver,
the barotropic solver, and the tracer advection) to alternate with every dynamic
timestep. This includes changes to record this direction in the restart file,
so that the model will reproduce across restarts. In addition a previously
uninitialized logical in offline_advection_layer is now being initialized
similarly to other similar variables in the MOM_offline_main module. By
default, all answers in the MOM6-examples are bitwise identical, but there is a
new runtime parameter and a new non-mandatory field in the MOM6 restart files,
and there might be changes in offline tracer advection runs.