org.ow2.proactive.topology.descriptor

Class MultipleHostsExclusiveDescriptor

java.lang.Object

org.ow2.proactive.topology.descriptor.TopologyDescriptor

org.ow2.proactive.topology.descriptor.MultipleHostsExclusiveDescriptor

All Implemented Interfaces:

Serializable

@PublicAPI
public class MultipleHostsExclusiveDescriptor
extends TopologyDescriptor

This descriptor allows to select nodes on multiple hosts exclusively. Hosts with selected nodes will be reserved for the user.

By specifying this descriptor in ResourceManager.getAtMostNodes user may get more nodes than it asked for due to the fact that total capacity of all machines is bigger (even thought the resource manager tries to find the optimal set of host minimizing the waist of resources), namely

if user requested k nodes - if one machine exists with the capacity k it will be selected - if several machines give exact number of nodes they will be selected (in case of several possibilities number of machines will be minimized) - if it not possible to find exact number of nodes but it's possible to find more than they will be selected. The number of waisted resources and number of machines will be minimized - otherwise less nodes will be provided but as the closest as possible to k

See Also:

Serialized Form

Field Summary

Fields inherited from class org.ow2.proactive.topology.descriptor.TopologyDescriptor

ARBITRARY, BEST_PROXIMITY, DIFFERENT_HOSTS_EXCLUSIVE, MULTIPLE_HOSTS_EXCLUSIVE, SINGLE_HOST, SINGLE_HOST_EXCLUSIVE

Constructor Summary

Constructors

Constructor and Description
MultipleHostsExclusiveDescriptor() Constructs a new instance of the class.

Method Summary

Methods inherited from class org.ow2.proactive.topology.descriptor.TopologyDescriptor

isTopologyBased, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

MultipleHostsExclusiveDescriptor

public MultipleHostsExclusiveDescriptor()

Constructs a new instance of the class.