A SOFTWARE CONTROLLED DATA PREFETCHING SCHEME BASED ON WEAK ORDER CONSISTENCY MODEL
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    Abstract:

    This paper presents a software controlled data prefetching scheme to overcome the delay of remote memory accesses in the physically distributed and logically shared memory system. With the information provided by the parallel programs respecting weak order consistency model, prefetch operations can be arranged at synchronization points to get the data before they are used. This scheme can effectively hide the large latency of non uniform memory access architechtrol model through block operations.

    Reference
    1 Mowry T,Gupta A.Tolerating latency through software-controlled data prefetching in shared memory multipro- cessors.Journal of ParalleI and Distributed Computing,1990,12(2):210~217. 2 Chen T F.Data prefetching for high-performance processors[Ph.D.thesis].Dept.of Computer Science and Engineering,Univ.of Washington,1993. 3 Mosberger David.Memory consistency models.Operating System Overview,1993,27(1):7~15. 4 Dou Yong,Zhou Xingming.Prefetching at synchronization points for programs respecting weak memory consisten- cy model.In: Proc.1995 Intl.Conference on Young Computer Scientists,Beijing,1995. 5 Sarita V Adve,Mark D Hill.Weak ordering-a new definition.In:Proc.1990 Intl.Conference on Computer Archi- tecture.1990.2~14. 6 Muchnik Steven S,Jones Nell D.Program flow analysis:theory and applications.Prentice Hall,EngleWood Cliff, NT, 1981.
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窦勇,周兴铭.基于弱一致性模型软件数据预取策略.软件学报,1997,8(2):81-86

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  • Revised:January 08,1996
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