Lumpiasty/llama.cpp
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common : add support for multiple end sequences in the reasoning budget sampler (#25544)

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* common : extract trie/ac to a separate file

* common : support multiple token sequences in the reasoning budget sampler

* common/trie : return matched word index

* common/trie : rename "word" to "pattern"

* common/reasoning-budget : expose matched end sequence

* common/sampling : replay end sequence when reasoning budget is done

* cont : update to use multiple end sequences

* cont : clean up
This commit is contained in:
Aldehir Rojas
2026-07-25 11:58:09 +02:00
committed by GitHub
parent d67c0b4107
commit 910196f6b3
14 changed files with 497 additions and 254 deletions
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common/common.h
+6 -6
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@@ -284,12 +284,12 @@ struct common_params_sampling {
// reasoning budget sampler parameters
// these are populated by the server/CLI based on chat template params
int32_t reasoning_budget_tokens = -1; // -1 = disabled, >= 0 = token budget
std::vector<llama_token> reasoning_budget_start; // start tag token sequence
std::vector<llama_token> reasoning_budget_end; // end tag token sequence
std::vector<llama_token> reasoning_budget_forced; // forced sequence (message + end tag)
std::string reasoning_budget_message; // message injected before end tag when budget exhausted
bool reasoning_control = false; // create the budget sampler on demand so reasoning can be ended at runtime
int32_t reasoning_budget_tokens = -1; // -1 = disabled, >= 0 = token budget
std::vector<llama_token> reasoning_budget_start; // start tag token sequence
std::vector<llama_tokens> reasoning_budget_end; // end tag token sequences; the first tag is used as the forcing sequence
std::vector<llama_token> reasoning_budget_forced; // forced sequence (message + first end tag)
std::string reasoning_budget_message; // message injected before end tag when budget exhausted
bool reasoning_control = false; // create the budget sampler on demand so reasoning can be ended at runtime
bool backend_sampling = false;