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ExploreQuakeFloat8: A Provably Optimal Log-Domain 8-Bit Format for ML Multiply-Accumulate

QuakeFloat8: A Provably Optimal Log-Domain 8-Bit Format for ML Multiply-Accumulate

Block-scaled logarithmic 8-bit number format where multiplication reduces to integer addition. Proves minimax NMSE optimality of log-uniform quantization, achieves +6.6 dB SQNR over FP8 E4M3, 3.5× cheaper multiplier, and matches FP32 training loss on TinyGPT-2. Lean 4 verified.

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Metadata

Type
paper
Visibility
public
Published
Mar 27, 2026
Last updated
Mar 27, 2026

Tags

formal-verificationhardwarelog-domainlow-precision-arithmeticmachine-learningquakefloat8quantization