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server : don't overfill the batch during infill (#10018)

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ggml-ci
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Georgi Gerganov 2024-10-28 08:49:32 +02:00 committed by GitHub
parent 8841ce3f43
commit 8125e6cbfc
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2 changed files with 5 additions and 2 deletions
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1
examples/server/server.cpp
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@ -1880,6 +1880,7 @@ struct server_context {
if (slot.state == SLOT_STATE_STARTED) {
slot.t_start_process_prompt = ggml_time_us();
slot.t_start_generation = 0;
slot.n_past = 0;
slot.n_prompt_tokens = prompt_tokens.size();
slot.state = SLOT_STATE_PROCESSING_PROMPT;

6
examples/server/utils.hpp
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@ -266,8 +266,10 @@ static llama_tokens format_infill(
}
// for now pick FIM context to fit in a batch (ratio prefix:suffix = 3:1, TODO: configurable?)
const int n_suffix_take = std::min<int>(tokens_suffix.size(), (n_batch/4));
const int n_prefix_take = std::min<int>(tokens_prefix.size(), 3*(n_batch/4) - 3);
const int n_prefix_take = std::min<int>(tokens_prefix.size(), 3*(n_batch/4));
const int n_suffix_take = std::min<int>(tokens_suffix.size(), std::max<int>(0, (n_batch/4) - (2 + tokens_prompt.size())));
SRV_DBG("n_prefix_take = %d, n_suffix_take = %d, total = %d\n", n_prefix_take, n_suffix_take, (n_prefix_take + n_suffix_take));
// fill the rest of the context with extra chunks
const int n_extra_take = std::min<int>(std::max<int>(0, n_ctx - (n_batch) - 2*n_predict), extra_tokens.size());