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...
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 ...
I am experiencing occasional NCCL operation failures with caused by the following IB completion error. What is the root cause of this error? What steps should I take to reduce (or eliminate) the frequency of this error? NET/IB : Got comp...
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...
Footer © 2024 GitHub, Inc. Footer navigation Terms Privacy Security Status Docs Contact Manage cookies Do not share my personal information Distributed model training with nccl error:NCCL WARN NET/IB Got completion error 12 · Issue #1170 · NVIDIA/nccl...
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. ...
NCCL version 2.4.8+cuda10.1 ds-ml-01-0:17086:17353 [1] NCCL INFO Bootstrap : Using [0]eth0:10.233.66.147<0> ds-ml-01-0:17086:17353 [1] NCCL INFO NET/Plugin : No plugin found (libnccl-net.so). ds-ml-01-0:17086:17353 [1] NCCL INFO NET/IB : No device found. ...