Multi-threaded quantization #1075
Merged
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This PR adds multi-threading for quantization.
The gain is very minor for small models (e.g., LLaMA 7B) and simple quantization (
Q4_0
andQ4_1
), but very significant for large models and the now more elaborateQ4_2
quantization.quantize-stats
now finishes in just 14.5 seconds (7B) or 44 seconds (13B) on my computer for all 3 quantization types. The single-threaded version took 144 seconds (7B) or 242 seconds (13B).