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[RFC] nccl-ep: explicit arguments instead of (inputs, num_inputs)

Status: Open.

#2122 In NVIDIA/nccl;

· kwen2501 opened on Apr 20, 2026

[Issue]: putSignal has a bug that causes vllm/sglang requests to be lost.

Status: Open.

#2119 In NVIDIA/nccl;

· leoda1 opened on Apr 20, 2026

[Question]: Question about Ring AllReduce concurrent flow interference

question

Status: Open.

#2118 In NVIDIA/nccl;

· LawsonLi opened on Apr 20, 2026

[Issue]: ncclNvlsDeregBuffer silently swallows cuMulticastUnbind failures — poisons CUDA context across ncclCommDestroy, breaks cuda-checkpoint

Status: Open.

#2117 In NVIDIA/nccl;

· shubh3794 opened on Apr 20, 2026

[Issue]: NCCL v2.30.3 segfault with profiler plugin enableled

Status: Open.

#2112 In NVIDIA/nccl;

· LeviMee opened on Apr 17, 2026

[RFC] nccl-ep: support Attention–MoE disaggregation

Status: Open.

#2111 In NVIDIA/nccl;

· kwen2501 opened on Apr 17, 2026

[RFE] NCCL EP: support elastic buffers

enhancement

Status: Open.

#2110 In NVIDIA/nccl;

· kwen2501 opened on Apr 16, 2026

[RFC] EP dispatch: support 2D expert-contiguous output layout

Status: Open.

#2109 In NVIDIA/nccl;

· kwen2501 opened on Apr 16, 2026

[Issue]: Intel Granite Rapids (GNR) are misdetected with lower UPI InterCpuBw

Status: Open.

#2107 In NVIDIA/nccl;

· avnf opened on Apr 16, 2026

[Issue]: segfault at cuMemCreate of ncclCuMemHostEnable in "misc/cudawrap.cc"

Status: Open.

#2106 In NVIDIA/nccl;

· clan opened on Apr 16, 2026

[Issue]: NCCL v2.30.3-1 Release installs headers without nccl prefix

Status: Open.

#2105 In NVIDIA/nccl;

· lahwaacz opened on Apr 15, 2026

[RFE]: Graph-capturable NCCL EP API for CUDA Graph / Piecewise CUDA Graph integration

Status: Open.

#2104 In NVIDIA/nccl;

· nkumaraws opened on Apr 15, 2026