Comparing Centralized and Decentralized Distributed Execution Systems

We implement two distributed execution systems one centralized and one decentralized. We test these systems in terms of how well they handle a high number of requests, distribute execution, and tolerate heterogeneity. Given the small size and homogeneity of our lab environment we find that the centralized system provides a much simpler yet equally effective alternative to the decentralized system. However, in the simulated environments, we find that the decentralized system has great potential to tolerate heterogeneity and scale to wider area networks. This system needs to be tested with many more nodes in order to effectively test its ability to scale.