[Bug]: test_flashinfer_cutlass_mxfp4_fused_moe accuracy mismatch on H20 (sm90) — 89% mismatch vs 20% threshold
![[Bug]: test_flashinfer_cutlass_mxfp4_fused_moe accuracy mismatch on H20 (sm90) — 89% mismatch vs 20% threshold](https://www.chat-gpts.plus/wp-content/uploads/2026/06/46585-55e7134d-768x403.jpg)
运行 vLLM 内置的单元测试 test_flashinfer_cutlass_mxfp4_fused_moe 时,在单卡 NVIDIA H20 (sm90) 上触发。该测试被条件 gate HOPPER_MXFP4_BF16_AVAILABLE 收集(sm90 + flashinfer 存在)。使








