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Strided perplexity (#2714)

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* Implementing strided computation of perplexity

* Alternative way to output PPL results

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Co-authored-by: Iwan Kawrakow <iwan.kawrakow@gmail.com>
This commit is contained in:
Kawrakow
2023-08-23 12:56:42 +03:00
committed by GitHub
parent 7f7ddd5002
commit 62959e740e
3 changed files with 141 additions and 1 deletions
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4
common/common.h
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@@ -64,6 +64,10 @@ struct gpt_params {
std::string lora_adapter = ""; // lora adapter path
std::string lora_base = ""; // base model path for the lora adapter
int ppl_stride = 0; // stride for perplexity calculations. If left at 0, the pre-existing approach will be used.
int ppl_output_type = 0; // = 0 -> ppl output is as usual, = 1 -> ppl output is num_tokens, ppl, one per line
// (which is more convenient to use for plotting)
//
bool hellaswag = false; // compute HellaSwag score over random tasks from datafile supplied in prompt
size_t hellaswag_tasks = 400; // number of tasks to use when computing the HellaSwag score