Add ISSM ice sheet model GridComp to Landice#1203

Draft

agstub wants to merge 110 commits intodevelopfrom

feature/agstub/issm-gridcomp

Commits on Sep 16, 2025

placeholder issm gridcomp, directory, cmakelists
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filling out basic gridcomp structure
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add call to child in landice
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Commits on Sep 17, 2025

update issm cmakelists, add comments
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more comments
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comments
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comment out alot to try hello-world child
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edit cmakelists
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trying to fix cmakelists
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shuffling cmakelists commands
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comments
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trying to rename issm gridcomp
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correct gridcomp name
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add mapl metacomp pointers
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debugging child run call
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Commits on Sep 18, 2025

comment
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uncomment actual issm calls
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comment fix
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remove redundancy
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comment out just the run issm call
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also comment out issm finalize just in case
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try printing vm info
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trying to call issm initialize again
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shuffles calls around
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Commits on Sep 19, 2025

call get vm
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call issm finalize
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try gridcompcreate with issm mesh
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comment a comment...
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try gridcompset for issm mesh...
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try to call issm run
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see if adding vmbarrier fixes petsc error
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try buffering number of elements
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revert number of elements, remove sdim
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trying to run from initialize just to see...
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revert to correct run/initialize structure
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trying calling mapl_genericinitialize before issm
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print smb inputs, never give up
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smb all zeros is good, print sizes to make sure...
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try running again
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Commits on Sep 21, 2025

fix issm rootdir
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fix directory argv trunction
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Commits on Sep 22, 2025

minor comments
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remove vm print info
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Commits on Sep 23, 2025

duplicate vm comm for issm use
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Commits on Sep 24, 2025

child call according to run alarm
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Commits on Sep 26, 2025

add barriers and deallocates
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try mpi barrier
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don't forget allocations
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add suffix just in case
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Commits on Oct 1, 2025

add intrinsics and comments
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point to petsc debug version
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remove intrinsics, threw syntax error
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Commits on Oct 6, 2025

Commits on Oct 7, 2025

remove some printing and alarm_off call
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change mesh coordsys to lat-lon, mv runchild call
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Commits on Oct 9, 2025

minor comments
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comment about lat/long
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Commits on Nov 4, 2025

add mesh-to-agrid regridding
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Commits on Nov 5, 2025

add locstream transform
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replace mktile
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fix typo
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various comments and renaming
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fix type error
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fix type error
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fix several types
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fix fieldfill
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Commits on Nov 6, 2025

add grid-to-mesh routehandle
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fix assignment
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add import states
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format consistency
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formatting consistency
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some comments
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add some smb variables
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fix deallocate
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add regrid for smb
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Commits on Nov 7, 2025

allocate grid field
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fix meshloc
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fixed allocation issue-mostly working
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Commits on Nov 12, 2025

update locstream transforms-working
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Commits on Nov 18, 2025

add do_issm flag
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specify issm expdir/input in rc file
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Commits on Nov 19, 2025

add average,refresh intervals to smb import
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Commits on Nov 21, 2025

add mesh save option
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Commits on Feb 5, 2026

Merge branch 'develop' into feature/agstub/issm-gridcomp
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set initialize method to be consistent w/o issm
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Commits on Feb 6, 2026

v11: Build ISSM based on detection of ISSM
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Commits on Feb 9, 2026

Merge pull request #1206 from GEOS-ESM/feature/issm-optional
agstub
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Commits on Feb 11, 2026

Commits on Feb 12, 2026

Commits on Feb 13, 2026

Merge pull request #1209 from GEOS-ESM/feature/jiang/issm-gridcomp
agstub
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Commits on Feb 16, 2026

add new issm expots to gridcomp
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fix variable name typo
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fix fielddestroy calls
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initialize issm outputs to zero
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rm whitespace
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edit formatting
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rename mesh file
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Merge pull request #1210 from GEOS-ESM/feature/agstub/issm-outputs
agstub
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Commits on Feb 18, 2026

Commits on Feb 23, 2026

initial changes
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Commits on Feb 24, 2026