Load Balancing Strategies for Time Warp on Multi-User Workstations

This paper describes load balancing techniques for the Time Warp distributed synchronization technique for object-oriented simulation. The Time Warp system distributes objects across nodes and provides optimistic concurrency control. Our implementation is Lisp-based and executes on a network of UNIX-based workstations, where system load varies depending on the number of users and processes. This technique achieves a balanced load by first determining if the load is unbalanced. Then if it is unbalanced, the system must determine which machine is the most underloaded and migrate an object to that machine