Lumpiasty/llama.cpp
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spec : Support Step3.5/3.7 flash mtp3 (#24340)

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* add mtp_layer_offset + include nextn flags in graph reuse

* add llama_set_mtp_layer_offset + llama_model_n_nextn_layer API

* offset head select + require all MTP blocks

* speculative multi-head process()

* speculative multi-head draft()

* gather outputs via inp_out_ids

* cleanup

* fix core

* minor cleanup

* merged draft_multi_head into draft()

* mtp rename nextn

* Apply suggestions from code review

Co-authored-by: Aman Gupta <amangupta052@gmail.com>

* clean-up comments

* fix for multi seq

* apply suggestions && chain-heads comment

* add a reference for chain_heads discussion

---------

Co-authored-by: Aman Gupta <amangupta052@gmail.com>
This commit is contained in:
YiChen Lv
2026-06-21 11:33:18 +03:00
committed by GitHub
co-authored by Aman Gupta
parent 063d9c156e
commit d789527482
9 changed files with 167 additions and 73 deletions
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src/llama-ext.h
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@@ -95,6 +95,11 @@ LLAMA_API llama_memory_breakdown llama_get_memory_breakdown(const struct llama_c
// If masked == false, output the embeddings for all tokens in the batch regardless of batch.logits
LLAMA_API void llama_set_embeddings_nextn(struct llama_context * ctx, bool value, bool masked);
// Select which appended NextN block the DECODER_MTP graph runs (offset past
// the trunk: il = n_layer() + offset). Used by the speculative NextN driver to
// chain multiple trained NextN heads. Default 0 (first head).
LLAMA_API void llama_set_nextn_layer_offset(struct llama_context * ctx, int32_t offset);
// mirrors:
// LLAMA_API float * llama_get_embeddings(struct llama_context * ctx);
LLAMA_API float * llama_get_embeddings_nextn(struct llama_context * ctx);