#ヘッドノード
Host kanri
  HostName      xxx.xxx.xxx.xxx
  User          username_kanri
  IdentityFile  ~/.ssh/id_rsa

#計算ノード
Host keisan11
  HostName      192.168.0.11
  User          username_keisan11
  ProxyCommand  ssh -W %h:%p kanri
  
Host keisan12
  HostName      192.168.0.12
  User          username_keisan12
  ProxyCommand  ssh -W %h:%p kanri
  
#以下略