From 20385cebcc4bb3f6dd10f989573c11864d70d53d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Johannes=20G=C3=A4=C3=9Fler?= <johannesg@5d6.de> Date: Mon, 20 May 2024 18:15:38 +0200 Subject: [PATCH] perplexity: update README FP16 results [no ci] (#7413) --- examples/perplexity/README.md | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/examples/perplexity/README.md b/examples/perplexity/README.md index c2a3c5ce9..33a46d1a2 100644 --- a/examples/perplexity/README.md +++ b/examples/perplexity/README.md @@ -42,10 +42,13 @@ In addition to the KL divergence the following statistics are calculated with `- Results were generated using the CUDA backend and are sorted by Kullback-Leibler divergence relative to FP16. The "WT" importance matrices were created using varying numbers of Wikitext tokens and can be found [here](https://huggingface.co/JohannesGaessler/llama.cpp_importance_matrices/blob/main/imatrix-llama_3-8b-f16-2.7m_tokens.dat). +Note: the FP16 logits used for the calculation of all metrics other than perplexity are stored in a binary file between runs. +In order to save space this file does **not** contain the exact same FP32 logits but instead casts them to 16 bit unsigned integers (with some scaling). +So the "f16" results are to be understood as the difference resulting only from this downcast. | Quantization | imatrix | Model size [GiB] | PPL | ΔPPL | KLD | Mean Δp | RMS Δp | |--------------|---------|------------------|------------------------|------------------------|-----------------------|-------------------|------------------| -| f16 | None | 14.97 | 6.233160 ± 0.037828 | - | - | - | - | +| f16 | None | 14.97 | 6.233160 ± 0.037828 | 0.001524 ± 0.000755 | 0.000551 ± 0.000002 | 0.001 ± 0.002 % | 0.787 ± 0.004 % | | q8_0 | None | 7.96 | 6.234284 ± 0.037878 | 0.002650 ± 0.001006 | 0.001355 ± 0.000006 | -0.019 ± 0.003 % | 1.198 ± 0.007 % | | q6_K | None | 6.14 | 6.253382 ± 0.038078 | 0.021748 ± 0.001852 | 0.005452 ± 0.000035 | -0.007 ± 0.006 % | 2.295 ± 0.019 % | | q5_K_M | None | 5.33 | 6.288607 ± 0.038338 | 0.056974 ± 0.002598 | 0.010762 ± 0.000079 | -0.114 ± 0.008 % | 3.160 ± 0.031 % |