Related Issues (20)
- ncclSocketInit: connecting to address with family 0 is neither AF_INET(2) nor AF_INET6(10) HOT 5
- NICs on same subnet HOT 1
- Provenance of NVTX headers in NCCL HOT 4
- Add toggle to disable logging of version string HOT 1
- Performance drop on >= 8 nodes (32 GH200) for NCCL >= 2.20 HOT 4
- [BUG] NCCL2.20.5 meets "Message truncated : received 1024 bytes instead of 256" error while 2.18.5 not HOT 8
- How to get the NCCL_ROOT and NCCL_LIBRARIES path? HOT 2
- NCCL undefined reference HOT 1
- Nccl build error HOT 1
- HGX 2-node test with different NIC topologies different network card names hangs, no results HOT 4
- Why is GPUDirect Async not used in nccl HOT 1
- Can ranks use different group patterns when calling P2P communication? HOT 4
- Seeking for some explanations on the meaning of terminology in nvtx.h HOT 1
- Why is allgather's busbw a little worse than allreduce/reducescatter for the same nccl environment variables HOT 1
- Why nccl ring all reduce stream duration doesn't scales with theoretical (N-1)/N? HOT 1
- RuntimeError: NCCL Error 1: unhandled cuda error (run with NCCL_DEBUG=INFO for details) when torch._C._broadcast_coalesced HOT 2
- an NCCL timeout and the error "torch.cuda.OutOfMemoryError: CUDA out of memory. Tried to allocate more than 1EB memory" HOT 5
- AMD EPYC 7K62 NCCL-test 4090 bandwidth too HOT 1
- How can I identify level1 nvswitch and level2 nvswitch in NCCL HOT 11
- How can this be ported to Windows? HOT 4
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