Update MPAS dynamical core to version 8.4.2 and add support for online graph partitioning - #558
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kuanchihwang wants to merge 8 commits into
Open
kuanchihwang wants to merge 8 commits into
kuanchihwang wants to merge 8 commits into
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Fix the following Pylance error: > No overloads for "sorted" match the provided arguments by making the lambda function always return a string.
If (PT-)Scotch is available, MPAS can perform online graph partitioning, eliminating the need to precompute mesh decomposition files (i.e., *.graph.info.part.*) in advance.
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Originator(s)
kuanchihwang
Description (include the issue title, and the keyword ['closes', 'fixes', 'resolves'] followed by the issue number)
This PR updates MPAS dynamical core from version 8.4.0 to 8.4.2. See the release notes in-between (8.4.1, 8.4.2) for details.
Additionally, this PR introduces optional support for the online graph partitioning feature in MPAS dynamical core, eliminating the need to precompute mesh decomposition files (i.e.,
*.graph.info.part.*) in advance. This is a usability improvement that has been highly requested by the standalone MPAS user community, and now CAM-SIMA will also have it.The online graph partitioning feature depends on the external (PT-)Scotch library, and is controlled by two build-time options defined in
env_build.xml:USE_SCOTCH_LIBWhether to use the (PT-)Scotch library to enable the online graph partitioning feature in MPAS dynamical core.
If
TRUEandSCOTCH_PATHis not set, the build system will attempt to build the (PT-)Scotch library automatically.If
TRUEandSCOTCH_PATHis set, the build system will use the existing (PT-)Scotch library installation directly.If
FALSE, the online graph partitioning feature in MPAS dynamical core will be disabled. Default isFALSE.SCOTCH_PATHPath to the existing (PT-)Scotch library installation. Default is not set.
Users can set the desired options through the familiar
xmlchangetool from CIME. Switching back and forth between different values ofUSE_SCOTCH_LIBandSCOTCH_PATHfor an existing case is also handled gracefully.Describe any changes made to the build system
Describe any changes made to the namelist
List any changes to the defaults for the input datasets (e.g., initial, boundary datasets)
None
List all files eliminated and why
List all files added and what they do
List all existing files that have been modified, and describe the changes
Regression tests
Known failing test.
Different solutions due to the namelist update.
Known failing tests.
Different solutions due to the namelist update.
Pass.