Structured dagger: A coordination language for Message-Driven Programming
Message-Driven Programming style, used in languages such as Charm, avoids the use of blocking receives and allows adaptive overlap of computation and communication by scheduling objects depending on availability of messages. Charm supports objects whose methods can be triggered by remote objects asynchronously, which enables Charm programs to tolerate communication latencies in an adaptive manner. However, many parallel object-based applications require the object to coordinate the sequencing of the execution of their methods. Structured Dagger is a coordination language built on top of Charm that supports such applications by facilitating a clear expression of the flow of control within the object without losing the performance benefits of adaptive message-driven execution.
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