llama : add option for greedy sampling with probs (#3813)

* llama : add option for greedy sampling with probs

* llama : add comment about llama_sample_token_greedy() missing probs

* sampling : temp == 0.0 -> no probs, temp < 0.0 -> probs
This commit is contained in:
Georgi Gerganov 2023-10-28 14:23:11 +03:00 committed by GitHub
parent 177461104b
commit ee1a0ec9cb
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4 changed files with 9 additions and 3 deletions

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@ -167,8 +167,12 @@ llama_token llama_sampling_sample(
llama_sample_grammar(ctx_main, &cur_p, ctx_sampling->grammar);
}
if (temp <= 0) {
// greedy sampling
if (temp < 0.0) {
// greedy sampling, with probs
llama_sample_softmax(ctx_main, &cur_p);
id = cur_p.data[0].id;
} else if (temp == 0.0) {
// greedy sampling, no probs
id = llama_sample_token_greedy(ctx_main, &cur_p);
} else {
if (mirostat == 1) {