nodes

To specify the nodes that are members of a partition, set the partition's nodes attribute.

[node0]
P(part1):: set nodes=node1[node0] P(part1):: show        set nodes = node1
        set enabled
[node0] P(part1):: 

The value you give the nodes attribute defines the entire list of nodes in the partition. To add a node to an already existing node list without retyping the names of nodes that are already present, use the + (plus) character.

[node0]
P(part1):: set nodes=+node2 node3[node0] P(part1):: show        set nodes = node0 node1 node2 node3
        set enabled
[node0] P(part1):: 

Similarly, you can use the - (minus) character to remove a node from a partition.

To assign a range of nodes to the nodes attribute, use the : (colon) syntax. This example assigns to part0 all nodes whose names are alphabetically greater than or equal to node0 and less than or equal to node3:

[node0]
P(part1):: set nodes = node0:node3[node0] P(part1):: 

Setting the nodes attribute of an enabled partition has the side effect of setting the partition attribute of the corresponding nodes. Continuing the example, setting the nodes attribute of part1 affects the partition attribute of node2:

[node0]
P(part1):: node node2[node0] N(node2):: show        set partition = part1
[node0] N(node2):: 

A node cannot be a member of more than one enabled partition. If you try to add a node that is already in an enabled partition, mpadmin returns an error message.

[node0]
P(part1):: show        set nodes = node0 node1 node2 node3
        set enabled
[node0] P(part1):: current part0[node0] P(part0):: set enabled[node0] P(part0):: set nodes=node1mpadmin: node1 must be removed from part1 before it
can be added to part0

Unsetting the nodes attribute of an enabled partition has the side effect of unsetting the partition attribute of the corresponding node.

Unsetting the nodes attribute of a disabled partition removes the nodes from the partition but does not change their partition attributes.