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Refactor FP4 quantization and remove deprecated JIT kernels (#30448)

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Co-authored-by: root <root@sgl-b300-inference.datacrunch.io>
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Brayden Zhong
2026-07-14 09:22:07 +08:00
committed by GitHub
co-authored by root
parent 0c01971eeb
commit 9756f768a6
38 changed files with 120 additions and 5705 deletions
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docs_new/docs/advanced_features/server_arguments.mdx
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@@ -1436,9 +1436,9 @@ Please consult the documentation below and [server_args.py](https://github.com/s
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<td style={{padding: "9px 12px", fontWeight: 500, backgroundColor: "rgba(255,255,255,0.02)"}}>`--fp4-gemm-backend`</td>
<td style={{padding: "9px 12px", backgroundColor: "rgba(255,255,255,0.05)"}}>Choose the runner backend for NVFP4 GEMM operations. Options: 'auto' (default; selects <code>flashinfer_cutedsl</code> on SM100, <code>marlin</code> on SM80-SM90, <code>flashinfer_cutlass</code> otherwise (including SM120)), 'cutlass' (SGLang CUTLASS kernel), 'flashinfer_cutlass' (FlashInfer CUTLASS backend), 'flashinfer_cudnn' (FlashInfer cuDNN backend, optimal on CUDA 13+ with cuDNN 9.15+), 'flashinfer_cutedsl' (FlashInfer CuTe DSL backend), 'flashinfer_trtllm' (FlashInfer TensorRT-LLM backend, requires different weight preparation with shuffling), 'marlin' (weight-only W4A16 fallback for SM80-SM90). All FlashInfer backends fall back to sgl-kernel CUTLASS when FlashInfer is unavailable.</td>
<td style={{padding: "9px 12px", backgroundColor: "rgba(255,255,255,0.05)"}}>Choose the runner backend for NVFP4 GEMM operations. Options: 'auto' (default; selects <code>flashinfer_cutedsl</code> on SM100, <code>marlin</code> on SM80-SM90, <code>flashinfer_cutlass</code> otherwise (including SM120)), 'flashinfer_cutlass' (FlashInfer CUTLASS backend), 'flashinfer_cudnn' (FlashInfer cuDNN backend, optimal on CUDA 13+ with cuDNN 9.15+), 'flashinfer_cutedsl' (FlashInfer CuTe DSL backend), 'flashinfer_trtllm' (FlashInfer TensorRT-LLM backend, requires different weight preparation with shuffling), 'marlin' (weight-only W4A16 fallback for SM80-SM90). Requires FlashInfer to be installed.</td>
<td style={{padding: "9px 12px", backgroundColor: "rgba(255,255,255,0.02)"}}>`auto`</td>
<td style={{padding: "9px 12px", backgroundColor: "rgba(255,255,255,0.05)"}}><code>auto</code>, <code>cutlass</code>, <code>flashinfer_cudnn</code>, <code>flashinfer_cutedsl</code>, <code>flashinfer_cutlass</code>, <code>flashinfer_trtllm</code>, <code>marlin</code></td>
<td style={{padding: "9px 12px", backgroundColor: "rgba(255,255,255,0.05)"}}><code>auto</code>, <code>flashinfer_cudnn</code>, <code>flashinfer_cutedsl</code>, <code>flashinfer_cutlass</code>, <code>flashinfer_trtllm</code>, <code>marlin</code></td>
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<td style={{padding: "9px 12px", fontWeight: 500, backgroundColor: "rgba(255,255,255,0.02)"}}>`--disable-flashinfer-autotune`</td>