---
id: pr-vllm-9218
repo: vllm-project/vllm
pr: 9218
title: '[Bugfix] Fix Machete unittests failing with `NotImplementedError`'
author: LucasWilkinson
date: '2024-10-10'
url: https://github.com/vllm-project/vllm/pull/9218
source_category: upstream-code
architectures:
- sm100
tags:
- Machete
- benchmark_test
- gemm_quant
techniques:
- fine-grained-quantization
hardware_features: []
kernel_types:
- gemm
languages:
- cuda-cpp
captured_at: '2026-05-16'
status: merged
merge_sha: 18511aeda64b473314bb7727a97a220565e0af41
inclusion_reason: Inspect scale layout, accumulator type, tile/schedule choice, epilogue fusion, and partial-tile guards before deriving a candidate.
changed_paths:
- csrc/quantization/machete/machete_pytorch.cu
artifact_dir: evidence/pull-bundles/vllm/gh-9218
head_ref_oid: c35f5cef92ab675f1e311e7b49dd78233ffa9401
---
# [Bugfix] Fix Machete unittests failing with `NotImplementedError`

- Repository: `vllm-project/vllm`
- PR: [9218](https://github.com/vllm-project/vllm/pull/9218)
- 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

- `csrc/quantization/machete/machete_pytorch.cu`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-9218`
