feat: pipeline parallelism optimizations - load balancing, 1F1B scheduling, activation checkpointing#845

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ooples wants to merge 16 commits intomasterfrom

feat/pipeline-parallelism-optimizations-463

Commits on Feb 15, 2026

fix: add source generator exclusions, validation, and tag safety for pipeline parallelism

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fix: clean up all schedule implementations and pipeline model code quality issues

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fix: split configure methods, fix virtual-stage routing, and fail-fast micro-batch slicing

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fix: add schedule bounds validation, checkpoint guards, and cost doc accuracy

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fix: address remaining pr review comments for pipeline parallelism

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Merge remote-tracking branch 'origin/master' into feat/pipeline-parallelism-optimizations-463
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Merge branch 'master' into feat/pipeline-parallelism-optimizations-463
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fix: resolve ci build failure from duplicate generator references and tfm mismatch

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claude
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Merge branch 'feat/pipeline-parallelism-optimizations-463' of https://github.com/ooples/AiDotNet into feat/pipeline-parallelism-optimizations-463
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fix: use long arithmetic in bubble fraction and widen tag ranges

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fix: resolve sonarcloud build failure from vbcscompiler file lock

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fix: disable shared compilation in both build jobs to prevent file locks

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