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Issues list

NCCL Ignores Specified SOCKET_IFNAME Configuration on Worker Nodes in Multi-Node Setup
#1581 opened Jan 18, 2025 by rachid2198
NCCL_SOCKET_IFNAME has no effect during pytorch distributed training with multiple NICs
#1580 opened Jan 18, 2025 by hanruijiang
2
Is GPUDirect on GH200/GB200 relevant?
#1579 opened Jan 18, 2025 by drikster80
1
Question about post recv
#1577 opened Jan 17, 2025 by lpoyster
BusBW of 2-node tree-based Allreduce exceeds the theoretical limit
#1576 opened Jan 16, 2025 by JK-Jiagn
[Q] How to build nvidia-nccl whl package?
#1575 opened Jan 15, 2025 by kehuanfeng
nccl connection abort(between kubernetes pods): WARN NET/IB: read failed in ncclIbRoceGetVersionNum: Invalid argument
#1573 opened Jan 10, 2025 by limu713
6
nccl_max_nchannels dynamically set in the program
#1572 opened Jan 9, 2025 by Rainlin007
2
net.cc recvProxyConnect p2p buff set
#1570 opened Jan 9, 2025 by GeofferyGeng
Potential group\collective life-time management issue in profiler plugin.
#1569 opened Jan 9, 2025 by wiryls
2
How does the GPU that initiates the nvswitch broadcast know that the nvswitch has completed the broadcast operation?
#1568 opened Jan 8, 2025 by pengqianqian
Running issue with Nvidia NIM for NCCL.
#1567 opened Jan 7, 2025 by innat-asj
4
group launch allreduce + allgather
#1566 opened Jan 7, 2025 by alpha-baby
1
Comment of function
#1565 opened Jan 6, 2025 by WoosungMyung
1
[Hopper/NVLINK4] Origin of failure of fabric manager manifested through NCCL-based codes
#1562 opened Jan 3, 2025 by vitduck
3
AGX orin with nccl
#1561 opened Jan 3, 2025 by zuyulong
example profiler refCount issue
#1559 opened Dec 30, 2024 by fishautumn
1
Broadcast : recvbuff (nil) is not a valid pointerNCCL error
#1558 opened Dec 27, 2024 by mobilejammer
1
Is is possible for NCCL to add a retry mechanism when net flap happens
#1557 opened Dec 27, 2024 by ProHuper
NCCL_GRAPH The INFO of the logo cannot be printed to the console or to a specified file
#1556 opened Dec 26, 2024 by lmhahatest
1
How can I change the retans time in Mellanox NIC?
#1555 opened Dec 25, 2024 by aashuii
Does NVSwitch support overlapping SHARP and P2P/Coll tasks?
#1554 opened Dec 25, 2024 by YconquestY
Does nccl have any plans to support GPUDirect Async?
#1553 opened Dec 25, 2024 by wangfakang
1
Suggestions to Enhance NCCL Profiler Plugin Functionality
#1552 opened Dec 25, 2024 by skeyyk
1
How does the frequency setting interface of NVML affect NCCL communication?
#1551 opened Dec 25, 2024 by lilaiyi
ProTip! Updated in the last three days: updated:>2025-01-15.