aditya/llama.cpp
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Fix prompt cache saving and chat-persistent rollover (#1678)

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* Fix prompt cache saving and chat-persistent rollover (fixes #1670)

* clang-tidy

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

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Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
This commit is contained in:
Evan Jones 2023-06-03 07:28:45 -04:00 committed by GitHub
parent ffb06a345e
commit 136476e898
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1 changed files with 7 additions and 6 deletions
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13
examples/main/main.cpp
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@ -202,6 +202,13 @@ int main(int argc, char ** argv) {
} }
} }
// if we will use the cache for the full prompt without reaching the end of the cache, force
// reevaluation of the last token token to recalculate the cached logits
if (!embd_inp.empty() && n_matching_session_tokens == embd_inp.size() &&
session_tokens.size() > embd_inp.size()) {
session_tokens.resize(embd_inp.size() - 1);
}
// number of tokens to keep when resetting context // number of tokens to keep when resetting context
if (params.n_keep < 0 || params.n_keep > (int) embd_inp.size() || params.instruct) { if (params.n_keep < 0 || params.n_keep > (int) embd_inp.size() || params.instruct) {
params.n_keep = (int)embd_inp.size(); params.n_keep = (int)embd_inp.size();
@ -360,12 +367,6 @@ int main(int argc, char ** argv) {
} }
} }
if (i > 0) { if (i > 0) {
// check if we've used up all the prompt but not all cached tokens
if (embd.size() == i && n_session_consumed < (int) session_tokens.size()) {
// force revaluation of the last token to recalculate logits
i--;
n_past--;
}
embd.erase(embd.begin(), embd.begin() + i); embd.erase(embd.begin(), embd.begin() + i);
} }
} }