---
id: pr-vllm-18864
repo: vllm-project/vllm
pr: 18864
title: '[Kernel] Enable fp8 support for pplx and BatchedTritonExperts.'
author: bnellnm
date: '2025-07-03'
url: https://github.com/vllm-project/vllm/pull/18864
source_category: upstream-code
architectures:
- sm100
tags:
- fp8
- gemm
- kernel-fusion
- moe
- quantization
techniques:
- kernel-fusion
hardware_features:
- fp8
kernel_types:
- gemm
- moe
- quantization
languages:
- triton
captured_at: '2026-04-27'
status: merged
merge_sha: 78fe77534bd87f5356881f12d2a4ecbd8db29c41
inclusion_reason: kernel file changes
changed_paths:
- tests/kernels/moe/parallel_utils.py
- tests/kernels/moe/test_batched_moe.py
- tests/kernels/moe/test_deepep_deepgemm_moe.py
- tests/kernels/moe/test_deepep_moe.py
- tests/kernels/moe/test_pplx_cutlass_moe.py
- tests/kernels/moe/test_pplx_moe.py
- tests/kernels/moe/utils.py
- tests/kernels/quant_utils.py
- tests/kernels/utils.py
- vllm/model_executor/layers/fused_moe/batched_deep_gemm_moe.py
- vllm/model_executor/layers/fused_moe/batched_triton_or_deep_gemm_moe.py
- vllm/model_executor/layers/fused_moe/config.py
- vllm/model_executor/layers/fused_moe/cutlass_moe.py
- vllm/model_executor/layers/fused_moe/deepep_ht_prepare_finalize.py
- vllm/model_executor/layers/fused_moe/deepep_ll_prepare_finalize.py
- vllm/model_executor/layers/fused_moe/fused_batched_moe.py
- vllm/model_executor/layers/fused_moe/fused_moe.py
- vllm/model_executor/layers/fused_moe/layer.py
- vllm/model_executor/layers/fused_moe/modular_kernel.py
- vllm/model_executor/layers/fused_moe/pplx_prepare_finalize.py
- vllm/model_executor/layers/fused_moe/prepare_finalize.py
- vllm/model_executor/layers/fused_moe/utils.py
- vllm/model_executor/layers/quantization/compressed_tensors/compressed_tensors_moe.py
- vllm/model_executor/layers/quantization/fp8.py
- vllm/model_executor/models/qwen3_moe.py
head_ref_oid: b37026d1350c626802aaee50740c4c60a4882894
artifact_dir: evidence/pull-bundles/vllm/gh-18864
---
# [Kernel] Enable fp8 support for pplx and BatchedTritonExperts.

- Repository: `vllm-project/vllm`
- PR: [18864](https://github.com/vllm-project/vllm/pull/18864)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `tests/kernels/moe/parallel_utils.py`
- `tests/kernels/moe/test_batched_moe.py`
- `tests/kernels/moe/test_deepep_deepgemm_moe.py`
- `tests/kernels/moe/test_deepep_moe.py`
- `tests/kernels/moe/test_pplx_cutlass_moe.py`
- `tests/kernels/moe/test_pplx_moe.py`
- `tests/kernels/moe/utils.py`
- `tests/kernels/quant_utils.py`
- `tests/kernels/utils.py`
- `vllm/model_executor/layers/fused_moe/batched_deep_gemm_moe.py`
- `vllm/model_executor/layers/fused_moe/batched_triton_or_deep_gemm_moe.py`
- `vllm/model_executor/layers/fused_moe/config.py`
- `vllm/model_executor/layers/fused_moe/cutlass_moe.py`
- `vllm/model_executor/layers/fused_moe/deepep_ht_prepare_finalize.py`
- `vllm/model_executor/layers/fused_moe/deepep_ll_prepare_finalize.py`
- `vllm/model_executor/layers/fused_moe/fused_batched_moe.py`
- `vllm/model_executor/layers/fused_moe/fused_moe.py`
- `vllm/model_executor/layers/fused_moe/layer.py`
- `vllm/model_executor/layers/fused_moe/modular_kernel.py`
- `vllm/model_executor/layers/fused_moe/pplx_prepare_finalize.py`
- `vllm/model_executor/layers/fused_moe/prepare_finalize.py`
- `vllm/model_executor/layers/fused_moe/utils.py`
- `vllm/model_executor/layers/quantization/compressed_tensors/compressed_tensors_moe.py`
- `vllm/model_executor/layers/quantization/fp8.py`
- `vllm/model_executor/models/qwen3_moe.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-18864`
