* @param port the the port of remote host
* @param name the name under which variable was published
* @return promise of {@link groovyx.gpars.dataflow.DataflowVariable}
*/
public Promise<DataflowVariable> getVariable(String host, int port, String name) {
return getPromise(remoteVariables, name, host, port, new RemoteDataflowVariableRequestMsg(this.getId(), name));
}