Proceedings of the 19th international conference on Parallel architectures and compilation techniques
BFS solution for disjoint paths in P systems
UC'11 Proceedings of the 10th international conference on Unconventional computation
TransCom: transforming stream communication for load balance and efficiency in networks-on-chip
Proceedings of the 44th Annual IEEE/ACM International Symposium on Microarchitecture
New solutions for disjoint paths in P systems
Natural Computing: an international journal
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Streaming is emerging as an important programming model for multicores. Streaming provides an elegant way to express task decomposition and inter-task communication, while hiding laborious orchestration details such as load balancing, assignment (of stream computation to nodes) and computation/communication scheduling from the programmer. This paper develops a novel communication optimization for streaming applications based on the observation that streaming computations typically involve large, systematic data transfers between known communicating pairs of nodes over extended periods of time. From the above observation, we advocate a family of routing algorithms that expend some over overheads to compute disjoint paths for stream communication. Disjoint-path routing is an attractive design point because (a) the overheads of discovering disjoint paths are amortized over large periods of time and (b) the benefits of disjoint path routing are significant for bandwidth-sensitive streaming applications. We develop one instance of disjoint-path routing called tentacle routing - a backtracking, best-effort technique. On a 4脳4 (6脳6) system, tentacle routing results in 55% (84%) and 28% (41%) mean throughput improvement for high-network-contention streaming applications, and for all streaming applications, respectively.