Q4_2 quantization with rmse-optimized scale and quants #1062
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For quantize-stats we get q4_2: rmse 0.00159301, maxerr 0.17480469, 95pct<0.0030, median<0.0012 For 7B perplexity with BLAS enabled we get 6.2038 after 655 chunks. Quantization is slow (~90 seconds on my Mac for 7B) as not multi-threaded as in PR #896.
ggerganov
approved these changes
Apr 19, 2023
Not sure why this makes them fail
sw
reviewed
Apr 19, 2023
sw
reviewed
Apr 19, 2023
Green-Sky
reviewed
Apr 19, 2023
| @@ -1123,12 +1124,94 @@ static void quantize_row_q4_2_reference(const float * restrict x, block_q4_2 * r | |||
| } | |||
| } | |||
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| static inline int nearest_int(float fval) { | |||
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this inline does not do anything here. the static is all you need.
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hm actually, after looking at cppref, i am not sure that C and C++ are the same here.
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For quantize-stats we get
q4_2: rmse 0.00159301, maxerr 0.17480469, 95pct<0.0030, median<0.0012
For 7B perplexity with BLAS enabled we get 6.2038 after 655 chunks.
Quantization is slow (~90 seconds on my Mac for 7B) as not multi-threaded as in PR #896.