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[CAKE] Support DeepSeek-V4-Flash-0731 MoE warp-decode geometry

needs-triage

Status: Open.

#5184 In flashinfer-ai/flashinfer;

· yyihuang opened on Sep 13, 2026

b12x mm_mxfp8 requires K % 128 == 0: DeepSeek-V4.1-Flash's TP4 shared expert is K=576 and silently takes a 3.4x slower path

needs-triage

Status: Open.

#5175 In flashinfer-ai/flashinfer;

· knapcio opened on Sep 12, 2026

[Bug] Nightly Release: BF16 rank-major session CPU tests assume a source checkout

needs-triage

Status: Open.

#5162 In flashinfer-ai/flashinfer;

· cindyzxq opened on Sep 12, 2026

H100 CI broken on main since #5131: cudnn-frontend 1.28 vs backend 9.24 rejects non-ragged Stats layout (134 nodes, blocks all PRs)

needs-triage

Status: Open.

#5157 In flashinfer-ai/flashinfer;

· aleozlx opened on Sep 11, 2026

[Feature]: CuTe DSL W4A8 MXFP4 SiTU MoE for Kimi K3

feature requestNew feature or requestNew feature or request

needs-triage

Status: Open.

#5156 In flashinfer-ai/flashinfer;

· henrylhtsang opened on Sep 11, 2026

[Feature]: MNNVL AllReduce does not support TriggerCompletionAtEnd

feature requestNew feature or requestNew feature or request

needs-triage

Status: Open.

#5151 In flashinfer-ai/flashinfer;

· benchislett opened on Sep 11, 2026

[Bug] JIT sampler built with CUDA 13 is reused by CUDA 12.9 Ray workers and fails at runtime

needs-triage

Status: Open.

#5145 In flashinfer-ai/flashinfer;

· ZFXzzz opened on Sep 11, 2026

[Bug] SM120 sparse-MLA cpb calibration fails when it runs during engine startup (DGX Spark, TP=2) — plus a dead OOM fallback in _allocate_kv_pool

needs-triage

Status: Open.

#5142 In flashinfer-ai/flashinfer;

· de1tydev opened on Sep 11, 2026

[Feature]: Expose NVFP4 4over6 configuration through the public API

feature requestNew feature or requestNew feature or request

Status: Open.

#5141 In flashinfer-ai/flashinfer;

· pst2154 opened on Sep 11, 2026

[SM12x W4A16 MoE] ultra FC2 tile (tile_n=512, tile_k=32) is rejected by its own force_tile_config re-pin

bugSomething isn't workingSomething isn't working

needs-triage

Status: Open.

#5139 In flashinfer-ai/flashinfer;

· iamanishx opened on Sep 11, 2026

[SM120] Sparse-MLA DSV4 prefill kernel missing macro instantiation for num_heads=16, topk=512

needs-triage

Status: Open.

#5135 In flashinfer-ai/flashinfer;

· karn-shivam opened on Sep 11, 2026

[Bug] Vendored TRT-LLM copy still rounds the fp8 e4m3 packed cast through bf16; the #4167 fix never reached csrc/nv_internal

needs-triage

Status: Open.

#5128 In flashinfer-ai/flashinfer;

· GowayLee opened on Sep 11, 2026