---
id: pr-tensorrt-llm-11774
repo: NVIDIA/TensorRT-LLM
pr: 11774
title: '[None][fix] Fix SM120 issue for rms_norm with nvfp4_quant_fusion'
author: Wanli-Jiang
date: '2026-03-03'
url: https://github.com/NVIDIA/TensorRT-LLM/pull/11774
source_category: upstream-code
architectures:
- sm100
tags:
- blockScaleMoe
- gemm_quant
- norm_elementwise
techniques:
- fine-grained-quantization
- kernel-fusion
hardware_features:
- fp4
- nvfp4
kernel_types:
- attention
- gemm
- moe
- norm
languages:
- cute-dsl
captured_at: '2026-05-16'
status: merged
merge_sha: ae6bc675d1b84febc15d7905ae9c8f194256e810
inclusion_reason: Inspect scale layout, accumulator type, tile/schedule choice, epilogue fusion, and partial-tile guards before deriving a candidate.
changed_paths:
- tensorrt_llm/_torch/modules/rms_norm.py
artifact_dir: evidence/pull-bundles/tensorrt-llm/gh-11774
head_ref_oid: bc9db7d0b6f9582d2337b66c3c57c95c723f5cc8
---
# [None][fix] Fix SM120 issue for rms_norm with nvfp4_quant_fusion

- Repository: `NVIDIA/TensorRT-LLM`
- PR: [11774](https://github.com/NVIDIA/TensorRT-LLM/pull/11774)
- Decision: `Inspect scale layout, accumulator type, tile/schedule choice, epilogue fusion, and partial-tile guards before deriving a candidate.`
- Reason: Inspect scale layout, accumulator type, tile/schedule choice, epilogue fusion, and partial-tile guards before deriving a candidate.

## Changed Paths

- `tensorrt_llm/_torch/modules/rms_norm.py`

## Evidence Bundle

`evidence/pull-bundles/tensorrt-llm/gh-11774`
