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[Question]: When will the AllGather PAT algorithm with full topology support be further updated?

question

Status: Open.

#1964 In NVIDIA/nccl;

· predawn-love opened on Dec 25, 2025

[Issue]: <code>ncclCommWindowRegister</code> with <code>NCCL_WIN_DEFAULT</code> doesnt work <code>2.29.2-1</code> if GIN is not supported

Status: Open.

#1963 In NVIDIA/nccl;

· ngoyal2707 opened on Dec 25, 2025

[Question]: Is cuMemAlloc without memset safe?

question

Status: Open.

#1962 In NVIDIA/nccl;

· visualxu opened on Dec 24, 2025

[Issue]: Start timestamp is 0.0 for certain reported events when using NCCL example profiler

Status: Open.

#1961 In NVIDIA/nccl;

· LeviMee opened on Dec 24, 2025

[Issue]: New file in 2.29.2 release: git_version.h

Status: Open.

#1960 In NVIDIA/nccl;

· lahwaacz opened on Dec 24, 2025

[Issue]: No file updating for inspector in 2.29.2

Status: Open.

#1958 In NVIDIA/nccl;

· RicoloveFeng opened on Dec 24, 2025

[Issue]: GIN gdaki mode hardcode 4K MTU in doca modify qp

Status: Open.

#1957 In NVIDIA/nccl;

· cxz66666 opened on Dec 23, 2025

[Issue]: NCCL error: /pytorch/torch/csrc/distributed/c10d/NCCLUtils.hpp:268, NCCL version 2.22.3 ncclSystemError: System call (e.g. socket, malloc) or external library call failed or device error. Last error: socketStartConnect: Connect to IP&lt;51423&gt; failed

Status: Open.

#1956 In NVIDIA/nccl;

· guotong1988 opened on Dec 23, 2025

[Question]: The performance in gin alltoall is lower than that in normal alltoall.

question

Status: Open.

#1955 In NVIDIA/nccl;

· myh1222 opened on Dec 23, 2025

[Question]: Why do sendbuffer and revcbuffer exist simultaneously?

question

Status: Open.

#1954 In NVIDIA/nccl;

· jiangaojie opened on Dec 22, 2025

[Issue]: One-rank avg reduction missing elements

bug

Status: Open.

Bug

#1950 In NVIDIA/nccl;

· kwen2501 opened on Dec 19, 2025

[Issue]: transport/p2p.cc:275 NCCL WARN Cuda failure 101 'invalid device ordinal'

Status: Open.

#1948 In NVIDIA/nccl;

· QuentinMale opened on Dec 18, 2025