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Memory bandwidth analysis of hierarchical multiprocessors using model decomposition and steady-state flow analysis

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2 Author(s)
Mahmud, S.M. ; Dept. of Electr. & Comput. Eng., Wayne State Univ., Detroit, MI, USA ; Samaratunga, L.T.

For memory bandwidth analysis, researchers generally discard requests that are not accepted during a memory cycle. This assumption simplifies the analysis and produces negligible discrepancies with actual results for a system with a non-hierarchical interconnection network. However, the assumption, “the requests that are not occupied during a memory cycle are discarded,” cannot be used for a multiprocessor system with a hierarchical interconnection network (HIN), because the error introduced assumption can be several orders of magnitude higher than the actual bandwidth. An improved analytical model to determine the bandwidth of a HIN-based system is presented

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Parallel and Distributed Systems, IEEE Transactions on  (Volume:5 ,  Issue: 5 )