Davdi commented on issue #13526: distributed training van.cc Check failed URL: https://github.com/apache/incubator-mxnet/issues/13526#issuecomment-444821106 > is this ec2 or your own host? > please share the command you use to ssh-ing to master instance? > 1/ use ssh -A to login to master > 2/ on your master instance,run below command (this enables master to use your agent to login to workers) > > # setup ssh-forwarding. > sed -i "s/^#(\s+)ForwardAgent(\s+)no/\ \1ForwardAgent\2yes/g" /etc/ssh/ssh_config > > 3/ In host file use ip address instead. > > if you want to launch with 1 ps and 2 worker > your host file should look like: > 192.168.113.227 > 192.168.113.228 > 192.168.113.229 > > 4/use full path for host file > > 5/ launch with command: -s option says that use 1 server and -n is 2 worker . 1st host in host file will be server, 2nd host will be worker, 3rd host will be worker > launch.py -s 1 -n 2 ........
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