vbatts/llama.cpp
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Support for multiple reverse prompts. (#299)

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Co-authored-by: Johnman <>
Co-authored-by: Johnman <tjohnman@github>
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tjohnman 2023-03-19 20:33:06 +01:00 • committed by GitHub
parent 7392f1cd2c
commit 24568371ae
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3 changed files with 27 additions and 16 deletions
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34
main.cpp
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@ -855,14 +855,18 @@ int main(int argc, char ** argv) {
// in instruct mode, we inject a prefix and a suffix to each input by the user
if (params.instruct) {
params.interactive = true;
params.antiprompt = "### Instruction:\n\n";
params.antiprompt.push_back("### Instruction:\n\n");
}
// tokenize the reverse prompt
std::vector<gpt_vocab::id> antiprompt_inp = ::llama_tokenize(vocab, params.antiprompt, false);
std::vector<std::vector<gpt_vocab::id>> antipromptv_inp;
for (auto antiprompt : params.antiprompt) {
antipromptv_inp.push_back(::llama_tokenize(vocab, antiprompt, false));
}
// enable interactive mode if reverse prompt is specified
if (!antiprompt_inp.empty()) {
if (!antipromptv_inp.size()) {
params.interactive = true;
}
@ -886,13 +890,16 @@ int main(int argc, char ** argv) {
fprintf(stderr, "%s: interactive mode on.\n", __func__);
if (antiprompt_inp.size()) {
fprintf(stderr, "%s: reverse prompt: '%s'\n", __func__, params.antiprompt.c_str());
fprintf(stderr, "%s: number of tokens in reverse prompt = %zu\n", __func__, antiprompt_inp.size());
for (int i = 0; i < (int) antiprompt_inp.size(); i++) {
fprintf(stderr, "%6d -> '%s'\n", antiprompt_inp[i], vocab.id_to_token.at(antiprompt_inp[i]).c_str());
if(antipromptv_inp.size()) {
for (size_t apindex = 0; apindex < antipromptv_inp.size(); ++apindex) {
auto antiprompt_inp = antipromptv_inp.at(apindex);
fprintf(stderr, "%s: reverse prompt: '%s'\n", __func__, params.antiprompt.at(apindex).c_str());
fprintf(stderr, "%s: number of tokens in reverse prompt = %zu\n", __func__, antiprompt_inp.size());
for (int i = 0; i < (int) antiprompt_inp.size(); i++) {
fprintf(stderr, "%6d -> '%s'\n", antiprompt_inp[i], vocab.id_to_token.at(antiprompt_inp[i]).c_str());
}
fprintf(stderr, "\n");
}
fprintf(stderr, "\n");
}
}
fprintf(stderr, "sampling parameters: temp = %f, top_k = %d, top_p = %f, repeat_last_n = %i, repeat_penalty = %f\n", params.temp, params.top_k, params.top_p, params.repeat_last_n, params.repeat_penalty);
@ -1009,9 +1016,12 @@ int main(int argc, char ** argv) {
// check if we should prompt the user for more
if (params.interactive && embd_inp.size() <= input_consumed) {
// check for reverse prompt
if (antiprompt_inp.size() && std::equal(antiprompt_inp.rbegin(), antiprompt_inp.rend(), last_n_tokens.rbegin())) {
// reverse prompt found
is_interacting = true;
for (auto antiprompt_inp : antipromptv_inp) {
if (antiprompt_inp.size() && std::equal(antiprompt_inp.rbegin(), antiprompt_inp.rend(), last_n_tokens.rbegin())) {
// reverse prompt found
is_interacting = true;
break;
}
}
if (is_interacting) {
if (params.instruct) {