[FEA] need a feature for cvt a single element from bf16/f32 to f8

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#2,779 opened on Nov 18, 2025 3 comments 0 reactions 0 assignees View on GitHub

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? - Needs Triage CuTe DSL feature request inactive-30d inactive-90d

Dominant language: C++
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Description

Which component requires the feature?

CuTe DSL

Feature Request

Hi, I am trying to write a quantization kernel using cuteDSL as a start. But I encountered a problem that cuteDSL hasn't supported convertion for a signle element from bf16/f32 to f8. It would be better if you support this feature. Thanks.

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First steps

Read the whole issue, then the project's contributing guide.
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Open a pull request that references the issue number.

Research direction

Start in the CuTe DSL conversion support while tracing the quantization-kernel use case described in the issue. Identify the existing scalar conversion entry point and verify the requested single-element bf16/f32-to-f8 conversions; done means the feature supports that use case.

Written by the indexing model from the issue text.

Assessment

Tech stack: cpp, python
Domain: backend, tooling
Issue type: Feature
Difficulty: 4/5
Estimated time: 3-5 days
Activity status: Stale
Clarity: Needs clarification
Newbie friendliness: 35/100

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