Skip to content

Issues: NVIDIA/nccl

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

721 Open 726 Closed
721 Open 726 Closed
Author
Filter by author
Loading
Label
Filter by label
Loading
Use alt + click/return to exclude labels
or ⇧ + click/return for logical OR
Projects
Filter by project
Loading
Milestones
Filter by milestone
Loading
Assignee
Filter by who’s assigned
Sort
Sort by
Newest Oldest Most commented Least commented Recently updated Least recently updated Best match
Most reactions
👍 👎 😄 🎉 😕 ❤️ 🚀 👀

Issues list

NCCL profiler proxyStep start/stop counts mismatch in plugin v3. more info needed question
#1658 opened Mar 24, 2025 by jingxu9x
1
NCCL error: unhandled system error question triaged
#1657 opened Mar 24, 2025 by SecurityNeo
1
ncclInternalError: Internal check failed when using irecv with non-contiguous tensor in NCCL backend more info needed question
#1655 opened Mar 23, 2025 by default1360
1
ncclInternalError: Internal check failed and CUDA error: invalid device ordinal when using dist.recv_object_list with NCCL backend in multi-GPU setup more info needed question
#1654 opened Mar 23, 2025 by default1360
1
Very long initialization time with NCCL-GPUDirectTCPX question
#1652 opened Mar 21, 2025 by karakusc
1
[Feature Request] Allow specifying nccl{Send,Recv} peer via CUDA tensor enhancement
#1648 opened Mar 19, 2025 by garrett361
ncclP2pImportShareableBuffer(): cuMemImportFromShareableHandle() fails with CUDA failure 101 bug more info needed
#1647 opened Mar 19, 2025 by jgehrcke
3
ncclCommInitRankConfig taking 60 seconds+ for DGX B200s more info needed question triaged
#1646 opened Mar 19, 2025 by isidentical
2
How data is moving between GPUs? question
#1644 opened Mar 19, 2025 by eliird
2
Add op status in RAS when comm is not ok question triaged
#1642 opened Mar 18, 2025 by gangxie112
1
does st.volatile.global.v4.u32 instruction atomic that LL protocol use question
#1641 opened Mar 18, 2025 by telala
3
Modeling NCCL Performance for AllToAll Communications in Various Topologies question
#1640 opened Mar 17, 2025 by sabuj7177
The performance of NCCL All-Reduce across 8 NVIDIA 5090 GPUs is extremely poor question triaged
#1639 opened Mar 14, 2025 by wowlizw1
1
Nccl stuck when pods are with istio envoy triaged
#1638 opened Mar 12, 2025 by ran-haim
10
NCCL P2P issue using two RTX 5090 bug duplicate fixed
#1637 opened Mar 11, 2025 by shahizat
10
Question about NCCL Ring Generation
#1633 opened Mar 7, 2025 by WoosungMyung
Do I need to create an IMEX channel to use NVLS Sharp? question
#1632 opened Mar 7, 2025 by rajagond
3
NCCL RAS Structured Output question
#1629 opened Mar 3, 2025 by blegear
1
directSend in treeUpDown need update bug fixed
#1628 opened Mar 3, 2025 by visualxu
1
allreduce issues duplicated irecv under network plugin
#1626 opened Mar 3, 2025 by YangZhou1997
memory leak in net_ib.cc
#1625 opened Mar 3, 2025 by GeofferyGeng
2
Does the new profiler api of profiler plugin save the dump file when app is completed?
#1624 opened Mar 2, 2025 by Xiaoaier-Z-L
5
Error when debugging nccl source code using cuda-gdb.
#1622 opened Feb 28, 2025 by Linus-Voss
[bug]it look like a potential bug that use a local variable for asynchronous copy
#1621 opened Feb 28, 2025 by shizhixing
1
Question about network plugin API : is there a finishing call ?
#1620 opened Feb 27, 2025 by EmmanuelBRELLE
1
ProTip! Add no:assignee to see everything that’s not assigned.