vbatts/llama.cpp
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duo: more cleanup

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This commit is contained in:
Oleksandr Kuvshynov 2024-05-21 22:45:59 -04:00
parent f3965704fd
commit 2849247c4f
1 changed files with 10 additions and 29 deletions
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39
examples/duo/duo.cpp
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@ -46,45 +46,28 @@ int main(int argc, char ** argv) {
params.cb_split_done = split_done_cb;
std::tie(model, ctx) = llama_init_from_gpt_params(params);
const int n_len = 128;
std::vector<llama_token> tokens_list;
tokens_list = ::llama_tokenize(ctx, params.prompt, true);
const int n_ctx = llama_n_ctx(ctx);
const int n_kv_req = tokens_list.size() + (n_len - tokens_list.size());
LOG_TEE("\n%s: n_len = %d, n_ctx = %d, n_kv_req = %d\n", __func__, n_len, n_ctx, n_kv_req);
// make sure the KV cache is big enough to hold all the prompt and generated tokens
if (n_kv_req > n_ctx) {
LOG_TEE("%s: error: n_kv_req > n_ctx, the required KV cache size is not big enough\n", __func__);
LOG_TEE("%s: either reduce n_len or increase n_ctx\n", __func__);
return 1;
}
llama_tokens input = llama_tokenize(ctx, params.prompt, true);
const size_t n_input = input.size();
// print the prompt token-by-token
for (auto id : tokens_list) {
fprintf(stderr, "%s", llama_token_to_piece(ctx, id).c_str());
for (auto id : input) {
fprintf(stdout, "%s", llama_token_to_piece(ctx, id).c_str());
}
fflush(stderr);
fflush(stdout);
llama_batch batch = llama_batch_init(512, 0, 1);
// evaluate the initial prompt
for (size_t i = 0; i < tokens_list.size(); i++) {
llama_batch_add(batch, tokens_list[i], i, { 0 }, false);
for (size_t i = 0; i < input.size(); i++) {
llama_batch_add(batch, input[i], i, { 0 }, false);
}
// llama_decode will output logits only for the last token of the prompt
batch.logits[batch.n_tokens - 1] = true;
if (llama_decode(ctx, batch) != 0) {
LOG_TEE("%s: llama_decode() failed\n", __func__);
return 1;
}
// main loop
int n_cur = batch.n_tokens;
int n_decode = 0;
@ -94,7 +77,7 @@ int main(int argc, char ** argv) {
// we'll use logits from this position to determine next token
int logit_idx = batch.n_tokens - 1;
while (n_cur <= n_len) {
while (n_decode <= params.n_predict) {
// sample the next token
{
auto n_vocab = llama_n_vocab(model);
@ -113,13 +96,11 @@ int main(int argc, char ** argv) {
const llama_token new_token_id = llama_sample_token_greedy(ctx, &candidates_p);
// is it an end of generation?
if (llama_token_is_eog(model, new_token_id) || n_cur == n_len) {
LOG_TEE("\n");
if (llama_token_is_eog(model, new_token_id) || n_decode >= params.n_predict) {
break;
}
LOG_TEE("%s", llama_token_to_piece(ctx, new_token_id).c_str());
fprintf(stdout, "%s", llama_token_to_piece(ctx, new_token_id).c_str());
fflush(stdout);
// prepare the next batch