/*
* ProActive Parallel Suite(TM):
* The Open Source library for parallel and distributed
* Workflows & Scheduling, Orchestration, Cloud Automation
* and Big Data Analysis on Enterprise Grids & Clouds.
*
* Copyright (c) 2007 - 2017 ActiveEon
* Contact: contact@activeeon.com
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License
* as published by the Free Software Foundation: version 3 of
* the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* If needed, contact us to obtain a release under GPL Version 2 or 3
* or a different license than the AGPL.
*/
package org.ow2.proactive.topology.descriptor;
import org.objectweb.proactive.annotation.PublicAPI;
/**
* This descriptor allows to select nodes on the single hosts exclusively.
* The host with selected nodes will be reserved for the user.
* <p>
* By specifying this descriptor in {@code ResourceManager.getAtMostNodes} user may get
* more nodes than it asked for due to the fact that total capacity of hosts is
* bigger (even thought the resource manager tries to find the optimal host
* minimizing the waist of resources), namely
* <p>
* if user requested k nodes
*
* - the machine with exact capacity will be selected if exists
* - the machine with bigger capacity will be selected if exists.
* The capacity of the selected machine will be the closest to k.
* - the machine with smaller capacity than k will be selected.
* In this case the capacity of selected host will be the biggest among all other.
*
*/
@PublicAPI
public class SingleHostExclusiveDescriptor extends SingleHostDescriptor {
/**
* Constructs the new instance of this class.
*/
public SingleHostExclusiveDescriptor() {
super();
}
}