LDAS Beowulf Node Balance
Node Balance
This page displays a list of nodes in the Beowulf system when connected to
a site.

- To delete an existing node, click on node and select delete. To
delete a range of nodes , set the range and hit the Delete
to mark them for delete. Only valid node ranges will be set. You can hit
Undo
to undo the change.
- To add new nodes, enter the node name in the entries on the right.
To add a range of nodes , set the range and hit the Add
to enter them in the add entries on the right. Only non duplicated node ranges up to
a maximum will be set. You can hit Undo
to undo the change.
- Hit SUBMIT to submit the request to server.
- A confirmation dialog comes up to inform you of the exact request
and what you can undo. Hit Yes on confirmation dialog to confirm the submit.
You can add or delete in separate requests.
- When the server returns the response, Undo Last Change button is
enabled so you can undo the last change as mentioned in the confirmation dialog.
- The following buttons faciliate making node changes:
- Reset Screen Changes resets all node deletions and clears out new nodes
in the entries.
- Reset Active Nodes resets all node deletions.
- Clear Add Nodes resets all nodes in the addition entries.
- Login to a node as follows:
- Click on node and select login
- Select an X terminal type e.g. xterm or rxvt
- Enter a valid beowulf user Id.
- Hit SUBMIT button to invoke secured shell ( openssh ) connection into the LDAS gateway.
- Enter the password for the user Id on the gateway terminal,
e.g. the window that has the title e.g. ldas@ldas-dev.ligo.caltech.edu.
- When the password has been accepted, the X terminal to the node
will be displayed on your terminal for you to submit unix commands to the node.
