feat: Megatron reranker backend, unified eval, and decoder-LM SPLADE#221
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feat: Megatron reranker backend, unified eval, and decoder-LM SPLADE#221zhichaoxu-shufe wants to merge 1 commit into
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Adds three independent workstreams on top of Tevatron-v2 (additive, minimum-modification, backward compatible): - Megatron-Core training backend (TP/PP/EP parallelism, ZeRO-1 distributed optimizer, HF<->Megatron weight bridge, MoE-aware LoRA target groups) for dense and MoE rerankers; HF-format checkpoints. - Unified BEIR-15 evaluation with two schemas (local scoring + HTTP serving pool over HF/vLLM), plus offline teacher annotation for distillation. - Decoder-LM SPLADE (LACONIC): in-place bidirectional conversion via transformers 5.x create_bidirectional_mask (drops the llm2vec dependency), FLOPS-regularized SpladeTrainer, and the add_special_tokens BOS-sink fix. See docs/CHANGES.md for the full per-file summary and docs/environments.md for the pinned dependency manifests. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Adds three independent workstreams on top of Tevatron-v2 (additive, minimum-modification, backward compatible):
See docs/CHANGES.md for the full per-file summary and docs/environments.md for the pinned dependency manifests.