00000000 nccl4:1390395:1390435 [0] NCCL INFO NCCL_IGNORE_DISABLED_P2P set by environment to 1. ...
mpirun -np2-pernode\-hostfile hostfile\-mca btl_tcp_if_include eno2\-xNCCL_SOCKET_IFNAME=eno2\-xNCCL_DEBUG=INFO\-xNCCL_IGNORE_DISABLED_P2P=1\-xCUDA_VISIBLE_DEVICES=0,1\./build/all_reduce_perf -b8-e 128M -f2-g2-c0 执行结果: nThread1nGpus2minBytes8maxBytes134217728step: 2(factor...
一个简单的方法,使用NCCL作为分布式训练的通信后端时,先在终端导入环境变量 export NCCL_DEBUG=INFO export NCCL_IGNORE_DISABLED_P2P=1 再启动分…阅读全文 赞同56 条评论 分享收藏喜欢 专为大模型训练优化,百度集合通信库 BCCL 万卡集群快速定位故障 百度智能云 适合跑AI的云 1 集合通...
node155:3052668:3052715 [0] NCCL INFO P2P is disabled between connected GPUs 2 and 0. You can repress this message with NCCL_IGNORE_DISABLED_P2P=1. node155:3052670:3052714 [2] NCCL INFO P2P is disabled between connected GPUs 1 and 0. You can repress this message with NCCL_IGNORE_DISABLED...
Your current environment vllm 0.4.0.post1 docker image how ran: docker run -d \ --runtime=nvidia \ --gpus '"device=0,1"' \ --shm-size=10.24gb \ -p 5002:5002 \ -e NCCL_IGNORE_DISABLED_P2P=1 \ -v /etc/passwd:/etc/passwd:ro \ -v /etc/group:...
== PCI) && remPath->count > 3) type = PATH_PXB; // Consider a path going through the CPU as PATH_PHB if (link->type == LINK_PCI && (node->type == CPU || link->remNode->type == CPU)) type = PATH_PHB; // Ignore Power CPU in an NVLink path if (path->...
Note: This adds a new level (5) for the NCCL_P2P_LEVEL and NCCL_NET_GDR_LEVEL environment variables. See the NCCL documentation for more details. ‣ Added the NCCL_IGNORE_CPU_AFFINITY environment variable. Compatibility NCCL 2.4.7 has been tested with the following: ‣ Deep learning ...
The default is 0, set to 1 to cause NCCL to ignore the job’s supplied CPU affinity. NCCL_CONF_FILE¶ (since 2.23) TheNCCL_CONF_FILEvariable allows the user to specify a file with the static configuration. This does not accept the~character as part of the path; please convert to a...
然后通过ncclTopoCheckP2p检查当前GPU节点和其他所有的GPU节点之间是否可以使用p2p通信,其实就是判断gpu1到gpu2的路径type是否满足p2pLevel的限制,默认p2pLevel是PATH_SYS,如果用户没有通过环境变量设置的话就相当于没有限制,任意gpu之间都是支持p2p通信,另外如果路径类型为PATH_NVL的话,那么还支持p2p read。 ncclResult...
docker run -d \ --runtime=nvidia \ --gpus '"device=0,1,2,6"' \ --shm-size=10.24gb \ -p 5004:5004 \ -e NCCL_IGNORE_DISABLED_P2P=1 \ -e HUGGING_FACE_HUB_TOKEN=$HUGGING_FACE_HUB_TOKEN \ --env "HUGGING_FACE_HUB_TOKEN=$HUGGING_FACE_HUB_TOKEN" \ -v /etc/passwd:/etc/pass...