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Enabling circuit switching in multiprocessor systems has the potential to achieve more efficient communication with lower cost compared to packet/wormhole switching. However, in order to accomplish this efficiently, assistance from the compiler is required to reveal the communication pattern in the parallel application. In this paper we present symbolic expression analysis techniques in a MPI parallel compiler. Symbolic expression analysis allows the identification and representation thedoi:10.1109/ipdps.2008.4536344 dblp:conf/ipps/ShaoZJM08 fatcat:s7qkxg44svel7aoxx3sf55sgna