vbatts/llama.cpp
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Simplified chances calculation

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To be more inline with the original implementation, chance is calculated once at the beginning.
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MaggotHATE 2024-10-04 18:30:46 +05:00 • committed by GitHub
parent 9455194056
commit db54ac5df4
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1 changed files with 5 additions and 8 deletions
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13
src/llama-sampling.cpp
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@ -1089,18 +1089,15 @@ static void llama_sample_xtc_apply(struct llama_sampler * smpl, llama_token_data
// going through all candidates from back to front, easier to keep the last of probables
for (int i = (cur_p->size - 1); i >= 0; --i) {
if (cur_p->data[i].p >= ctx->threshold && cur_p->data[i].p <= ctx->threshold_max) {
if (removed == 0 || chance <= ctx->probability) {
++removed;
if (removed >= 2) {
// .logits are used for sorting and calculating .p in llama_sample_softmax_impl
cur_p->data[i].logit = -999.0f;
chance = (float)(rd()%100)/100;
}
++removed;
if (removed > 1) {
// .logits are used for sorting and calculating .p in llama_sample_softmax_impl
cur_p->data[i].logit = -999.0f;
}
}
}
if (removed >= 2) {
if (removed > 1) {
// sorting with new logits, ex-last probable will be the first anyway
std::sort(cur_p->data, cur_p->data + cur_p->size, [](const llama_token_data & a, const llama_token_data & b) {
return a.logit > b.logit;