Synchronizing access to shared data structures is a diicult problem for simulation programs. Frequently , synchronizing operations within and between simulation steps substantially curtails parallelism. This paper presents a general technique for performing this synchronization while sustaining parallelism. The technique combines ne-grained, exclusive locks with futures, a write-once data struc...

Parallelizing is a straightforward approach to reduce the total computation time of evolutionary algorithms. Finding an appropriate communication network within spatially structured populations for improving convergence speed and convergence probability is a difficult task. A new method that uses a dynamic communication scheme in an evolution strategy will be compared with conventional static a...