Live Webcast 15th Annual Charm++ Workshop

Dagger: Combining the Benefits of Synchronous and Asynchronous Communication Styles
PPL Technical Report 1993
Publication Type: Paper
Repository URL:
mechanism in parallel programming today. Message driven execution is an alternate mechanism which does not use receive style statements at all. The message driven execution style promotes the overlap of computation and communication. Programs written in this style exhibit increased latency tolerance: their performance does not degrade significantly with latency. It also induces compositionality: multiple independently developed modules can be combined correctly without loss of efficiency. However, as the flow of control is not explicit in such programs, they are often difficult to develop and debug. We present a coordination language called Dagger to alleviate this problem. The language has been implemented in the Charm parallel programming system, and runs programs portably on a variety of parallel machines.
Attila Gursoy and L.V. Kale, "Dagger: Combining the Benefits of Synchronous and Asynchronous Communication Styles", Parallel Programming Laboratory, Department of Computer Science, University of Illinois, March 1993.
Research Areas