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llama: introduce support for model-embedded sampling parameters (#17120)

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This commit is contained in:
Aaron Teo
2025-11-25 09:56:07 +08:00
committed by GitHub
parent 3d07caa99b
commit 877566d512
10 changed files with 293 additions and 13 deletions
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common/common.h
+18
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@@ -140,6 +140,22 @@ struct common_grammar_trigger {
llama_token token = LLAMA_TOKEN_NULL;
};
enum common_params_sampling_config : uint64_t {
COMMON_PARAMS_SAMPLING_CONFIG_SAMPLERS = 1 << 0,
COMMON_PARAMS_SAMPLING_CONFIG_TOP_K = 1 << 1,
COMMON_PARAMS_SAMPLING_CONFIG_TOP_P = 1 << 2,
COMMON_PARAMS_SAMPLING_CONFIG_MIN_P = 1 << 3,
COMMON_PARAMS_SAMPLING_CONFIG_XTC_PROBABILITY = 1 << 4,
COMMON_PARAMS_SAMPLING_CONFIG_XTC_THRESHOLD = 1 << 5,
COMMON_PARAMS_SAMPLING_CONFIG_TEMP = 1 << 6,
COMMON_PARAMS_SAMPLING_CONFIG_PENALTY_LAST_N = 1 << 7,
COMMON_PARAMS_SAMPLING_CONFIG_PENALTY_REPEAT = 1 << 8,
COMMON_PARAMS_SAMPLING_CONFIG_MIROSTAT = 1 << 9,
COMMON_PARAMS_SAMPLING_CONFIG_MIROSTAT_TAU = 1 << 10,
COMMON_PARAMS_SAMPLING_CONFIG_MIROSTAT_ETA = 1 << 11,
};
// sampling parameters
struct common_params_sampling {
uint32_t seed = LLAMA_DEFAULT_SEED; // the seed used to initialize llama_sampler
@@ -172,6 +188,8 @@ struct common_params_sampling {
bool no_perf = false; // disable performance metrics
bool timing_per_token = false;
uint64_t user_sampling_config = 0; // bitfield to track user-specified samplers
std::vector<std::string> dry_sequence_breakers = {"\n", ":", "\"", "*"}; // default sequence breakers for DRY