Add offline collective simulation tool - #37

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codex/collective-sim

Commits on Jun 20, 2026

docs: design collective simulation tool
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42d6942
docs: add communication buffer constraint to simulator design
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f169502
docs: plan collective simulation tool
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66e220f
feat: add collective simulator data model
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b97cd11
feat: validate collective simulator DAGs
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6f7f714
fix: require communication buffers for transfers
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1f89f0c
feat: add symbolic allgather validation
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061ca95
feat: add 1d clos topology model
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48d726f
fix: honor clos oversubscription threshold
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cce000b
feat: simulate collective DAG timing
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5bc8b9c
fix: schedule shared simulator flows concurrently
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128ee60
feat: add allgather simulator example
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b26c0fc
fix: align allgather example ranks
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9345ddb
feat: add collective simulator reports and cli
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c79247e
docs: document collective simulator workflow
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0c14676
fix: correct collective simulator sweep semantics
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ef233a6
fix: reject non-integer transfer ranks
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903fcfd
docs: plan interactive simulator reports
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feat: add interactive rank report timelines
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feat: render report timelines by resource lane
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449bbd8
feat: export rank timelines as perfetto traces
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9cf9716

Commits on Jun 21, 2026

feat: split perfetto profiles by simulation result
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d6662d6
feat: isolate perfetto profiles by rank
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1a40500
fix: include local copy events in perfetto profiles
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c833751