Combining Hardware And Software Cache Coherence Strategies
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Combining Hardware and Software Cache Coherence Strategies
Abstract: "Efficiently maintaining cache coherence is a major problem in large-scale shared memory multiprocessors. Hardware directory schemes have very high memory requirements, while software-directed schemes must rely on imprecise compile-time memory disambiguation. Recently proposed dynamic directory schemes allocate pointers to blocks only as they are referenced, which significantly reduces their memory requirements, but they still allocate pointers to blocks that do not need them. We show how compiler marking can further reduce the directory size by allocating pointers only when necessary. Using trace-driven simulations, we find that the performance of this new approach is comparable to other coherence schemes, but with significantly lower memory requirements."
The Cache Coherence Problem in Shared-Memory Multiprocessors
Almost all software solutions are developed through academic research and implemented only in prototype machines leaving the field of software techniques for maintaining the cache coherence widely open for future research and development. This book is a collection of all the representative approaches to software coherence maintenance including a number of related efforts in the performance evaluation field. The book presents a selection of 27 papers dealing with state-of-the-art software solutions for cache coherence maintenance in shared-memory multiprocessors. It begins with a set of four introductory readings that provides a brief overview of the cache coherence problem and introduces software solutions to the problem. The text defines and illustrates static and dynamic software schemes, techniques for modeling performance evaluation mechanisms, and performance evaluation studies. The book is intended for the experienced reader in computer engineering but possibly a novice in the topic of cache coherence. It also provides an in-depth understanding of the problem as well as a comprehensive overview for multicomputer designers, computer architects, and compiler writers. In addition, it is a software coherence reference handbook for advanced undergraduate and typical graduate students in multiprocessing and multiprogramming areas.
Proceedings of the 1993 International Conference on Parallel Processing
This three-volume work presents a compendium of current and seminal papers on parallel/distributed processing offered at the 22nd International Conference on Parallel Processing, held August 16-20, 1993 in Chicago, Illinois. Topics include processor architectures; mapping algorithms to parallel systems, performance evaluations; fault diagnosis, recovery, and tolerance; cube networks; portable software; synchronization; compilers; hypercube computing; and image processing and graphics. Computer professionals in parallel processing, distributed systems, and software engineering will find this book essential to their complete computer reference library.