@文心快码nccl info net/ib : no device found. 文心快码 关于你提出的“nccl info net/ib : no device found”问题,这里有几个可能的解决步骤和检查点,我会逐一说明: 检查NCCL是否正确安装: 首先,确保你已经安装了NCCL。可以通过运行nccl --version来检查NCCL是否安装以及安装的版本。 如果未安装,你需要从NV...
解决多机多卡训练慢的问题 | 多机多卡训练模型遇到过非常慢的情况,gpu的功率上不去,感觉所有的时间都耗费在同步耗时上,这时候只需要加上这个:export NCCL_NET=IB就应该可以解决,快去试试吧 发布于 2023-07-01 10:12・IP 属地广东 赞同2 分享收藏 写下你的评论... 还没有评论,发表第一...
NCCL_IB_TC=106 Pytorch: torch=2.2.2 torchaudio=2.2.2 torchvision=0.17.2 Env: Mellanox 6dx firmware 22.36.1010 Driver Version: 535.183.06 MLNX_OFED_LINUX-23.10-1.1.9.0 CUDA Version: 12.2 Also get vendor err 129, then 249: kp-ddp-worker-0:3468:3905 [4] ib_plugin.c:1615 NCCL WARN ...
MASTER_ADDR="<IP_address_of_node_1>"MASTER_PORT=6000 NNODES=2 NODE_RANK=1 WORLD_SIZE=$(($GPUS_PER_NODE*$NNODES)) The scripts above work fine outside of Docker, but when I run it inside Docker, I get an error sayingNCCL INFO NET/IB : No device foundand ...
这个issue的测试环境是两台DGX-A100服务器,每台上面有4张200Gbps的IB NIC。他测出来Ring的算法带宽是49GB/s,总线带宽是91GB/s。Tree的算法带宽是57GB/s。Ring的总线带宽已经非常接近理论上限了,但是这个例子里面,Ring算法的NIC之间一共收发了2倍数据量的数据,而Tree算法的NIC之间只收发了1倍数据量(因为只有2...
cat: /sys/class/infiniband/mlx5_2/ports/1/gid_attrs/types/3: Invalid argument root@test-macvlan-pod-2:/# cat /sys/class/infiniband/mlx5_2/ports/1/gid_attrs/types/4 IB/RoCE v1 mpirun logsmpirun_logs.txt
NVIDIA/ncclPublic NotificationsYou must be signed in to change notification settings Fork882 Star3.6k Open 2 * 8 H800 , Distributed model training with nccl error The results of executing the command ibdev2netdev on the two servers are different. ...
root@ds-ml-01-0:/home/jovyan/lalith/nccl-tests# mpirun -x NCCL_SOCKET_IFNAME=lo -np 2 -H localhost:2 -bind-to none -map-by slot -x NCCL_DEBUG=INFO -x LD_LIBRARY_PATH -x PATH -mca pml ob1 -mca btl ^openib --allow-run-as-root ./build/all_reduce_perf -b 8 -e 1G ...
NCCL version 2.10.3+cuda11.3 zkti:702445:702445 [1] NCCL INFO Bootstrap : Using lo:127.0.0.1<0> zkti:702445:702445 [1] NCCL INFO NET/Plugin : No plugin found (libnccl-net.so), using internal implementation zkti:702445:702445 [1] NCCL INFO NET/IB : No device found. ...
In IB, when link down occurs, NCCL log shows this and fail: In RoCE, dmesg shows: In IB, UFM shows: Link down won't last for a long time, usually after max to dozens of seconds, it will recover, during which network topo and other context information won't change. Can NCCL add ...