1. A method of provisioning aggregate computational workloads and air conditioning unit configurations to optimize utility of air conditioning units and processing resources within a data center, the method comprising: for each air conditioning unit within the data center, determining, by a configuration optimizer, a thermal zone generated by the air conditioning unit; for a given aggregate computational workload, identifying, by the configuration optimizer, a plurality of computational workload configurations, each computational workload configuration indicating spatial assignments of the aggregate computational workload among a plurality of processing resources within the data center; for each computational workload configuration, calculating, by the configuration optimizer, a total minimum energy consumption of the air conditioning units and the processing resources, wherein calculating a total minimum energy consumption includes determining a lowest power air conditioning unit configuration of the air conditioning units that enables each air conditioning unit to consume the least amount of energy while maintaining a real-time inlet temperature of the air conditioning unit's thermal zone within a predetermined temperature range; and selecting, by the configuration optimizer, the computational workload configuration with the lowest total minimum energy consumption and the determined lowest power air conditioning unit configuration corresponding with the selected computational workload configuration.