vbatts/llama.cpp
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llama : add DRY sampler (#9702)

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* sampling : add DRY sampler (post-refactor)

* DRY: Trying to fix coauthors, removed unneeded line

* DRY: Fixed redundant code

* DRY: Fixed crash issue due to DRY being in chain but uninitialized

---------

Co-authored-by: l3utterfly <gc.pthzfoldr@gmail.com>
Co-authored-by: pi6am <34464159+pi6am@users.noreply.github.com>
This commit is contained in:
wwoodsTM 2024-10-25 10:07:34 -06:00 • committed by GitHub
parent d80fb71f8b
commit ff252ea48e
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17 changed files with 713 additions and 63 deletions
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61
common/arg.cpp
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@ -251,6 +251,9 @@ static bool common_params_parse_ex(int argc, char ** argv, common_params_context
for (auto & antiprompt : params.antiprompt) {
string_process_escapes(antiprompt);
}
for (auto & seq_breaker : params.sparams.dry_sequence_breakers) {
string_process_escapes(seq_breaker);
}
}
if (!params.kv_overrides.empty()) {
@ -997,6 +1000,64 @@ common_params_context common_params_parser_init(common_params & params, llama_ex
params.sparams.penalty_freq = std::stof(value);
}
).set_sparam());
add_opt(common_arg(
{"--dry-multiplier"}, "N",
string_format("set DRY sampling multiplier (default: %.1f, 0.0 = disabled)", (double)params.sparams.dry_multiplier),
[](common_params & params, const std::string & value) {
params.sparams.dry_multiplier = std::stof(value);
}
).set_sparam());
add_opt(common_arg(
{"--dry-base"}, "N",
string_format("set DRY sampling base value (default: %.2f)", (double)params.sparams.dry_base),
[](common_params & params, const std::string & value) {
float potential_base = std::stof(value);
if (potential_base >= 1.0f)
{
params.sparams.dry_base = potential_base;
}
}
).set_sparam());
add_opt(common_arg(
{"--dry-allowed-length"}, "N",
string_format("set allowed length for DRY sampling (default: %d)", params.sparams.dry_allowed_length),
[](common_params & params, int value) {
params.sparams.dry_allowed_length = value;
}
).set_sparam());
add_opt(common_arg(
{"--dry-penalty-last-n"}, "N",
string_format("set DRY penalty for the last n tokens (default: %d, 0 = disable, -1 = context size)", params.sparams.dry_penalty_last_n),
[](common_params & params, int value) {
params.sparams.dry_penalty_last_n = value;
}
).set_sparam());
add_opt(common_arg(
{"--dry-sequence-breaker"}, "STRING",
string_format("add sequence breaker for DRY sampling, clearing out default breakers (%s) in the process; use \"none\" to not use any sequence breakers\n",
params.sparams.dry_sequence_breakers.empty() ? "none" :
std::accumulate(std::next(params.sparams.dry_sequence_breakers.begin()),
params.sparams.dry_sequence_breakers.end(),
std::string("'") + (params.sparams.dry_sequence_breakers[0] == "\n" ? "\\n" : params.sparams.dry_sequence_breakers[0]) + "'",
[](const std::string& a, const std::string& b) {
std::string formatted_b = (b == "\n") ? "\\n" : b;
return a + ", '" + formatted_b + "'";
}).c_str()),
[](common_params & params, const std::string & value) {
static bool defaults_cleared = false;
if (!defaults_cleared) {
params.sparams.dry_sequence_breakers.clear();
defaults_cleared = true;
}
if (value == "none") {
params.sparams.dry_sequence_breakers.clear();
} else {
params.sparams.dry_sequence_breakers.emplace_back(value);
}
}
).set_sparam());
add_opt(common_arg(
{"--dynatemp-range"}, "N",
string_format("dynamic temperature range (default: %.1f, 0.0 = disabled)", (double)params.sparams.dynatemp_range),