vbatts/llama.cpp
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Output all perplexitiies

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Gary Linscott 2023-03-21 07:10:42 -07:00
parent d1fa8f5833
commit 2f8ab68d72
1 changed files with 2 additions and 1 deletions
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main.cpp
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@ -795,6 +795,7 @@ void perplexity(const gpt_vocab &vocab, const llama_model &model, const gpt_para
int count = 0; int count = 0;
double nll = 0.0; double nll = 0.0;
int seq_count = tokens.size() / params.n_ctx; int seq_count = tokens.size() / params.n_ctx;
printf("Calculating perplexity over %d chunks\n", seq_count);
for (int i = 0; i < seq_count; ++i) { for (int i = 0; i < seq_count; ++i) {
int start = i * params.n_ctx; int start = i * params.n_ctx;
int end = start + params.n_ctx - 1; int end = start + params.n_ctx - 1;
@ -827,7 +828,7 @@ void perplexity(const gpt_vocab &vocab, const llama_model &model, const gpt_para
++count; ++count;
} }
// perplexity is e^(average negative log-likelihood) // perplexity is e^(average negative log-likelihood)
printf("perplexity: %.4lf [%d/%d] \r", std::exp(nll / count), i + 1, seq_count); printf("[%d]%.4lf,", i + 1, std::exp(nll / count));
fflush(stdout); fflush(stdout);
} }
printf("\n"); printf("\n");