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microsoft / onnxruntime Public

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Optimize MatMulNBits 2-bit + float zero_point CPU dequantization with multi-threaded kernel#28589

Merged

tianleiwu merged 6 commits into

mainmicrosoft/onnxruntime:mainfrom

copilot/optimize-matmulnbits-performancemicrosoft/onnxruntime:copilot/optimize-matmulnbits-performanceCopy head branch name to clipboard

May 25, 2026

Conversation Commits6 (6)Checks Files changed

Merged

Optimize MatMulNBits 2-bit + float zero_point CPU dequantization with multi-threaded kernel#28589
tianleiwu merged 6 commits into
mainfrom
copilot/optimize-matmulnbits-performance

Commits

Commits on May 20, 2026

Initial plan
Copilot
authored
Optimize MatMulNBits 2-bit + float zero_point dequantization with multi-threaded kernel

Copilot
and
tianleiwu
authored
add benchmark
tianleiwu
committed
address feedbacks
tianleiwu
committed

Commits on May 22, 2026

Address MatMulNBits review feedback
Copilot
authored
Fix issues: C-style casts; Alignment/strict-aliasing; MLFloat16 precision
tianleiwu
committed

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