feat(mopd): support multiple teacher checkpoints in full-vocabulary o… - #4045
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feat(mopd): support multiple teacher checkpoints in full-vocabulary o…#4045RayenTian wants to merge 1 commit into
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…pd_full Drops the "exactly one unique teacher checkpoint" restriction on on_policy_distillation.full's hidden_states path. Each physical teacher gets a stable index; teacher worker groups tag every payload row they write with it (new OPD_FULL_TEACHER_INDEX_FIELD column); the student loads one LM-head shard per teacher (dict keyed by index, same offload/evict lifecycle as before) and groups a microbatch's rows by teacher_index to project each group through its own shard rather than requiring a single teacher for the whole run. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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…pd_full
Drops the "exactly one unique teacher checkpoint" restriction on on_policy_distillation.full's hidden_states path. Each physical teacher gets a stable index; teacher worker groups tag every payload row they write with it (new OPD_FULL_TEACHER_INDEX_FIELD column); the student loads one LM-head shard per teacher (dict keyed by index, same offload/evict lifecycle as before) and groups a microbatch's rows by teacher_index to project each group through its own shard rather than requiring a single teacher for the whole run.
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