Common Window

The Common Window is the primary window used by the system administrator to send input to all the nodes. This window has a menu bar with three menus and a text field for command entry. The Common Window is always displayed when CCM is launched.

Menu Bar

The menu bar has three menus:

• Hosts

• Options

• Help

Note that in this manual, the CCM term Hosts refers to Sun HPC Cluster nodes.

Hosts Menu

The Hosts menu displays a list of the nodes contained in the cluster, plus two other entries, Select Hosts and Exit. Table B-1 describes these menu choices.

Table B-1 CCM Menu Entries

Entry	Function
Host toggle buttons	Selects whether or not the host gets input from the Common Window text field. There is a separate toggle button for each node currently connected to the CCM.  ON -- Enables input from the Common Window text field to the node.  OFF -- Disables input from the CCM.
Select Hosts	Displays the Select Hosts dialog window. See "Select Hosts Dialog Box"" for details.
Exit	Quits the CCM program.

Select Hosts Dialog Box

The Select Hosts dialog enables you to add or delete nodes during the current CCM session. The scrolled text window in the Select Hosts dialog displays a list of the nodes that are currently connected to CCM.

There are three Select Hosts dialog buttons, which are described in Table B-2

Table B-2 Select Hosts Dialog Buttons

Entry	Function
Insert	Opens a Term Window and establishes a connection to the specified hosts(s). Adds the host(s) specified in the Hostname text field to the list of accessible hosts. The inserted host name(s) are displayed in the hosts list in the scrolled text window and in the Common Window.
Remove	Deletes the host selected in the Hosts list in the scrolled text window.
Dismiss	Closes the Select Hosts dialog.

To Add a Single Node

1. Enter the hostname in the Hostname text field.

2. Select Insert.

   Entering a valid host name opens a Term Window for the specified host and establishes a connection to that host. The name of the selected host appears in the scrolled text window and in the hosts list on the Hosts menu in the Common Window.

To Add All Nodes in a Cluster

1. Enter the clustername in the Hostname text field.

2. Select Insert.

   CCM automatically expands the cluster name into its constituent host names and then opens one Term Window for each node. A connection is established for each of the constituent host names. CCM automatically displays the names of the hosts in the cluster in the scrolled text window and in the hosts list on the Hosts menu in the Common Window.

To Remove a Node

1. Select the name of the host in the list in the scrolled text window.

2. Select Remove.

   This closes the corresponding Term Window and disconnects the host. The name of the removed host disappears from the scrolled text window and from the hosts list on the Hosts menu in the Common Window.

Options Menu

The Options menu has one entry, Group Term Window; see Table B-3 for a description.

Table B-3 Group Term Window Entry

Entry	Function
Group Term Windows	This is a toggle button that groups and ungroups the Common Window and the Term Window.  ON -- Group; the Term Windows follow the Common Window when the Common Window is moved.  OFF -- Ungroup: the Term Windows and the Common Window move independently.

Help Menu

The Help Menu has three entries; see Table B-4 for a description

Table B-4 Help Menu

Entry	Function
Help	Displays a Help window--the interface to the Sun online help system.
About	Displays the About box, which contains information on the CCM application, such as version number.
Comments	Displays the Comments box, which allows you to enter comments about the software and send them to the development team.