53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
#pragma once
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#include "llama.h"
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#include "common.h"
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struct common_speculative;
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struct common_speculative_params {
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int n_draft = 16; // max drafted tokens
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int n_reuse = 256;
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float p_min = 0.75f; // min probability required to accept a token in the draft
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};
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struct mtp_kv_update_data {
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llama_token id;
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int32_t n_past;
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int32_t tok_idx;
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};
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struct common_speculative * common_speculative_init(
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struct llama_context * ctx_tgt,
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struct llama_context * ctx_dft
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);
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void common_speculative_free(struct common_speculative * spec);
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bool common_speculative_are_compatible(
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const struct llama_context * ctx_tgt,
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const struct llama_context * ctx_dft);
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void common_speculative_add_replacement_tgt_dft(
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struct common_speculative * spec,
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const char *source, const char *dest);
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// sample up to n_draft tokens and add them to the batch using the draft model
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llama_token mtp_speculative_gen_draft(
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struct common_sampler* smpl,
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struct llama_context* ctx,
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llama_token id_last,
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int32_t n_past,
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int32_t last_tok_idx);
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// sample up to n_draft tokens and add them to the batch using the draft model
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llama_tokens common_speculative_gen_draft(
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struct common_speculative * spec,
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struct common_speculative_params params,
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const llama_tokens & prompt,
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llama_token id_last);
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void mtp_update_kv_cache(struct llama_context * ctx, std::vector<mtp_kv_update_data>& tokens, size_t batch_start = 0, size_t n_tokens = -1);
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