Search results

running multi-node with Exclusive Process

Status: Open.

#369 In NVIDIA/nccl-tests;

· angainor opened on Jan 21, 2026

Is it applicable to the L20 card?

Status: Open.

#368 In NVIDIA/nccl-tests;

· jiaozenghui opened on Jan 20, 2026

H20-3e 400Gx8 Roce Actual performance experimental data

Status: Open.

#367 In NVIDIA/nccl-tests;

· Rankole opened on Jan 10, 2026

ALL_Reduce_Perf with NVLS in one node(8GPUs)

Status: Open.

#366 In NVIDIA/nccl-tests;

· networkResearcher opened on Jan 9, 2026

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