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Segfault while running benchmarks

Status: Open.

#363 In NVIDIA/nccl-tests;

· access2rohit opened on Dec 12, 2025

Low NCCL Performance in ubuntu kernel 6.8.x

Status: Open.

#362 In NVIDIA/nccl-tests;

· fazlan1990 opened on Dec 10, 2025

Multi-node all_reduce_perf / alltoall_perf failures: socketFinalizeAccept wrong type 4 != 3 over TCP and IB QP invalid request errors

Status: Open.

#360 In NVIDIA/nccl-tests;

· AlexanderNekrasov opened on Nov 24, 2025

Does the GinAlltoAllKernel have send/receive conflicts in in-place mode?

Status: Open.

#357 In NVIDIA/nccl-tests;

· shenhongqian opened on Oct 30, 2025

test deviceImpl And got error 'an illegal memory access was encountered'

Status: Open.

#355 In NVIDIA/nccl-tests;

· Qizhi697 opened on Oct 30, 2025

Latest Commits Causing Compile Errors for File alltoall.cu

Status: Open.

#354 In NVIDIA/nccl-tests;

· benjaminli-microsoft opened on Oct 27, 2025

can ncu profiling peer memory traffic

Status: Open.

#348 In NVIDIA/nccl-tests;

· Alice1069 opened on Oct 10, 2025

Issues regarding https://github.com/NVIDIA/nccl-tests/blob/master/doc/PERFORMANCE.md

Status: Open.

#346 In NVIDIA/nccl-tests;

· zxue2 opened on Sep 17, 2025

alltoall not in generate.py

Status: Open.

#344 In NVIDIA/nccl-tests;

· woodenmen opened on Sep 10, 2025

can alltoall use zero copy (only send without recv) by ncclCommRegister?

Status: Open.

#341 In NVIDIA/nccl-tests;

· ieeechuhaoyun opened on Aug 27, 2025

Some benchmarks fail with PXN enabled

Status: Open.

#340 In NVIDIA/nccl-tests;

· MeisterEule opened on Aug 19, 2025

UnknownError when trying to profile NCCL all reduce perf test with Nsight Compute

Status: Open.

#339 In NVIDIA/nccl-tests;

· amoghdadhich opened on Aug 17, 2025