Systems and methods for synchronzing processes

A communications system for a multiple processor computer system allows source computing elements to send messages to target computing elements without needing to know where the target computing elements are located in the system. Computing elements running on a processor within the multiple processor system access the communications system using the same code routines regardless of the location of the message targets. Remote computing elements are synchronized with local computing elements. Messages are seamlessly copied across processors when the target computing element is remote from the source computing element.