Components of cluster and cloud architecture. ExperAgent reads parameter data from the Data Management Module and uses the Partition Manager to farm Monte Carlo samples (one per lobule) out to N Slave nodes via the Message Passing Interface. Each Slave node has a proxy copy of the ExperAgent and Data Management Module, which writes run data to the Network File System mounted disk drive. Once all samples are finished, the ExperAgent sends all the raw observations to the Statistics Module, which sends the derived observations back to the ExperAgent. The ExperAgent then uses the Data Management Module to write the derived observations to disk.