ExecTimeEstimationPlugin This basic example defines simple resource hierarchy within a single data center (named dataCenter). It consists of 4 racks (with names created according to the name attribute and subsequent natural number: rack_0, rack_1, rack_2 and rack_3). Each of them contains 64 computing nodes (names will be generated using resource class and subsequent natural number: ComputingNode_0, ComputingNode_1,...ComputingNode_255) with 2 processors. Speed of every processor is equal 2. All computing nodes have 12GB of memory and 4TB storage. Task are submitted to the single cluster built on top of the data center. It is under the control of local scheduler with FCFS scheduling policy. The commented out cluster definition is equal to the one above it (it demonstrates alternative way of defining managed computing resources using "include" attribute). 12288 4194304 2 FCFSLocalSchedulingPlugin dataCenter