---
id: pr-vllm-34260
repo: vllm-project/vllm
pr: 34260
title: '[Model Bash]: Improve FP8 Oracle for Config Specific Kernel Selection'
author: elizabetht
date: '2026-02-20'
url: https://github.com/vllm-project/vllm/pull/34260
source_category: upstream-code
architectures:
- sm100
- sm90
tags:
- DeepGEMM
- arch_pipeline
- gemm_quant
- hopper
- moe_routing
- scheduler_autotune
- sm100
- sm90
techniques:
- autotuning
- fine-grained-quantization
- kernel-fusion
- pipeline-stages
- tile-scheduling
hardware_features:
- blackwell
- fp8
- hopper
kernel_types:
- gemm
- moe
- runtime
- scheduler
languages:
- cuda-cpp
- cute-dsl
captured_at: '2026-05-16'
status: merged
merge_sha: 81bfc21a6ad0cb498dbe5466ccf2987624efbba5
inclusion_reason: Inspect scale layout, accumulator type, tile/schedule choice, epilogue fusion, and partial-tile guards before deriving a candidate.
changed_paths:
- vllm/model_executor/layers/fused_moe/oracle/fp8.py
artifact_dir: evidence/pull-bundles/vllm/gh-34260
head_ref_oid: 5feabaf4e99940ee460d76d87524d27d6c6d0059
---
# [Model Bash]: Improve FP8 Oracle for Config Specific Kernel Selection

- Repository: `vllm-project/vllm`
- PR: [34260](https://github.com/vllm-project/vllm/pull/34260)
- 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

- `vllm/model_executor/layers/fused_moe/oracle/fp8.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-34260`
