In-memory snapshot toolkit (git stash for timesteps) - #195

Merged

lmoresi merged 15 commits into

developmentfrom

feature/in-memory-checkpoint

May 20, 2026

Commits on May 11, 2026

docs: add in-memory checkpoint / snapshot toolkit design note
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8e107b3
checkpoint: in-memory unitary snapshot via Model.snapshot/restore (PR 1)
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c9c1f24
checkpoint: swarm coverage + _population_generation counter (PR 2)
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001f961
Revert "checkpoint: swarm coverage + _population_generation counter (PR 2)"
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6d1b635
docs: correct snapshot design — rebuild-on-restore, mesh-adapt is v1.2
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checkpoint: rebuild-on-restore for swarms, v1.2-ready interfaces (PR 2 redo)
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checkpoint: Snapshottable contract + DDt Symbolic retrofit (PR 3)
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checkpoint: retrofit remaining DDt flavors (Eulerian/SemiLagrangian/Lagrangian/Lagrangian_Swarm) (PR 4)
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c58c165
docs: developer guide for the state-as-dataclass contract
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e7b1753

Commits on May 12, 2026

Commits on May 18, 2026

test: bit-identical continuation — the core stash-for-steps guarantee
lmoresi
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4702561

Commits on May 19, 2026

Commits on May 20, 2026

review: address Copilot feedback on #195
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14fc00c