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A DSM cluster architecture supporting aggressive computation in active networks

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1 Author(s)
P. Graham ; Dept. of Comput. Sci., Manitoba Univ., Winnipeg, Man., Canada

Active networks allow computations to be performed in-network at routers as messages pass through them. Active networks offer unique opportunities to optimize network-centric applications in ways that are not possible using conventional networks. Unfortunately, the need to route packets at full network speed means that very little computation can be done per packet, per router; this seriously restricts the range of in-network applications that can be developed. Computationally intensive applications are restricted to executing outside the network and thus many potential in-network optimizations are precluded. We propose a scalable cluster architecture using software distributed shared memory (DSM) that can be used as an “attached processor” at routers for executing active code. This novel application of DSM enables the construction of aggressive active network protocols by providing significant compute capacity outside the router's critical packet routing path. The use of DSM simplifies the implementation, and extends the capabilities of the active packet execution engine in ways that a message passing cluster cannot. Further, the characteristics of active processing enable specific optimizations to consistency maintenance

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Cluster Computing and the Grid, 2001. Proceedings. First IEEE/ACM International Symposium on

Date of Conference: