[kainzhong]

Description

Add CuTeDSL port of CUDA's MXFP8 gated quantization kernel

Type of change

• Documentation change (change only to the documentation, either a fix or a new content)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Infra/Build change
• Code refactoring

Changes

• Add CuTeDSL MXFP8 gated kernel

Checklist:

• I have read and followed the contributing guidelines
• The functionality is complete
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[greptile-apps]

Confidence Score: 5/5

[Medium impact] The PR appears safe to merge; no actionable new issues were established.

Summary

Adds a CuTeDSL backend for forward and backward gated MXFP8 quantization.

• MXFP8 gated activations can run through CuTeDSL.

No actionable new issues were established. GPU tests were not run.

Diagram

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[Gated MXFP8 call] --> B{CuTeDSL enabled and supported?}
    B -->|No| C[CUDA kernel]
    B -->|Yes| D[Load or compile CuTeDSL kernel]
    D --> E{Kernel available?}
    E -->|No| C
    E -->|Yes| F[Apply gated activation]
    F --> G[Quantize values and write scales]

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_{Reviews (6) · Last reviewed commit: "[pre-commit.ci] auto fixes from pre-comm..." · Reviewed by Greptile}

[ptrendx]

/te-ci