dragon.globalservices.node

Global Services API for the Node primary resource component.

The ‘Node’ component abstracts the hardware on a node level, providing information like the number of CPUs or the amount of memory available on the node.

Functions

`get_list`()	Asks Global Services for a list of the h_uids of all nodes.
`query`(identifier)	Asks GS for the node descriptor beloging to a node identified by name or h_uid .
`query_all`()	Asks Global Services to return the NodeDescriptor for every node that is part of the system.
`query_total_cpus`()	Asks GS to return the total number of CPUS beloging to all of the registered nodes.

Exceptions

DragonNodeError

exception DragonNodeError: Bases: Exception

query(identifier) → NodeDescriptor

Asks GS for the node descriptor beloging to a node identified by name or h_uid .

Parameters:: identifier – Node id to query. This is the name if of type str, h_uid if of type int
Returns:: descriptor
Raises:

query_all() → List[NodeDescriptor]

Asks Global Services to return the NodeDescriptor for every node that is part of the system.

Returns:: list of NodeDescriptors

query_total_cpus() → int

Asks GS to return the total number of CPUS beloging to all of the registered nodes.

Returns:: integer value of the number of cpus
Raises:

get_list() → list[int]

Asks Global Services for a list of the h_uids of all nodes.

Returns:: list of the h_uids of all currently existing memory pools