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Use Q4_K for attn_v for Q2_K_S when n_gqa >= 4 #4996

Merged
merged 1 commit into from
Jan 17, 2024
Merged

Use Q4_K for attn_v for Q2_K_S when n_gqa >= 4 #4996

merged 1 commit into from
Jan 17, 2024

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ikawrakow
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I have missed this tweak when adding Q2_K_S.

With this change, model size for Mistral-7B increases by only ~30 MB (0.03 bpw) while

  • Perplexity for a context of 512 on wiki.test.raw goes down from 6.9259 to 6.7116
  • 10-shot HellaSwag score after 2000 tasks increases by 0.95 +/- 0.42.

@ggerganov ggerganov merged commit 2b3a665 into master Jan 17, 2024
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jordankanter pushed a commit to jordankanter/llama.cpp that referenced this pull request Feb 3, 2024
@ikawrakow @Kawrakow @jordankanter
llama : use Q4_K for attn_v for Q2_K_S when n_gqa >= 4 (ggerganov#4996)
ec0b035 
Co-authored-by: Iwan Kawrakow <iwan.kawrakow@gmail.com>
hodlen pushed a commit to hodlen/llama.cpp that referenced this pull request Apr 1, 2024
@ikawrakow @Kawrakow @hodlen
llama : use Q4_K for attn_v for Q2_K_S when n_gqa >= 4 (ggerganov#4996)
d13fd96 
Co-authored-by: Iwan Kawrakow <iwan.kawrakow@gmail.com>
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@ggerganov ggerganov ggerganov approved these changes

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@ikawrakow @ggerganov @Kawrakow