Ho-Ren (Jack) Chuang

Projects

SGLang

LLM inference kernels, KV-cache quantization, sparse attention · 11 merged pull requests since November 2025, two more in review All Merged
  • Sparse MLA prefill[Feature] SM90 Q8KV8 FP8 Sparse MLA Prefill Kernel and SGLang NSA Runtime Integration  roadmap I opened
    • [Kernel] Add SM90 Q8KV8 FP8 Sparse MLA Prefill JIT Kernel with Tests and Benchmark · #25751
    • [DSA] Integrate Q8KV8 FP8 Sparse MLA Prefill into the DSA Backend (DeepSeek-V3.2) · #30514
    • [DSA] Q8KV8 FP8 Sparse Prefill on GLM-5.2 & DeepSeek-V3.2: Q8-Path & Shared-Path Optimizations · #31888
    • [DeepSeek-V4] Add Q8KV8 sparse MLA prefill runtime backend · #32327  co-author
    • FIX: (NSA) Compute topk_indices_offset when NSA prefill flashmla_sparse is used with FP8 KV cache · #20606
  • KV-cache quantization[Feature] Multiple KVCache Quantization Enhancements  roadmap
    • feat: Add FP4 (E2M1) KV Cache Support with Quantization Utilities for MLA · #10078
    • feat: Add FP4 (E2M1) KV Cache Support for MHA · #12612
    • Refactor MHA & MLA KV caches to support FP4 · #13547
    • Support kv8 (FP8) with torch_native attention backend · #12596
    • Check KV4 compatibility with attention backends and add KV4 support to the attention_backend doc · #14467
    • Add KV4-capable backend flashmla and update server args · #14989
  • MoE quantization
    • [Perf][Kernel] Fuse SiLU+Mul into NVFP4 Expert Quantization for CUTLASS MoE · #18612
  • Speculative decoding
    • [Speculative] Derive the speculative max_running_requests default from the decode CUDA-graph ladder · #34290
  • CUDA-free inferenceEnabling CUDA-Free Support for vLLM Inference Using Triton Kernels  article, first author
    • Support non-attention path operators in Triton · #4792

vLLM

Triton execution path, CUTLASS MoE FP8 PRs Issues
Enabling CUDA-Free Support for vLLM Inference Using Triton Kernels
Ho-Ren (Jack) Chuang, Tony Zhang, Yichen Wang, Zixuan Zhang, Deepak Vij, Xiaoning Ding
ByteDance Open Source, April 2025

Pull requests and issues above last checked .