Advances in Computers, Volume 92 by Ali Hurson

By Ali Hurson

Этот свежий сборник знакомит с последними достижениями в архитектуре компьютеров.
Contents
CHAPTER ONE
Register-Level communique in Speculative Chip Multiprocessors
CHAPTER TWO
Survey on process I/O Transactions and influence on Latency, Throughput, and different Factors
CHAPTER THREE
Hardware and alertness Profiling Tools
CHAPTER FOUR
Model Transformation utilizing Multiobjective Optimization
CHAPTER FIVE
Manual Parallelization as opposed to state of the art Parallelization recommendations: The SPEC CPU2006 as a Case learn

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Extra info for Advances in Computers, Volume 92

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The MAJC also relies on compiler to schedule instructions to FUs. Since the FUs and register files are data-type agnostic, the compiler has a flexibility in allocating data to registers to meet an application’s requirements [17,44]. NEKO also uses a compiler to statically identify threads from a sequential program [22], while the Mitosis compiler statically partitions the sequential programs into speculative threads by inserting the spawning pairs into code and generates the corresponding p-slice for each spawning pair [19].

Each TU has local multiversion register file (MRF) and multiversion cache, and they are connected to the global L2 cache via shared bus. The Speculation Engine handles the tasks related to the execution of the speculative thread: the allocation of free TU, the initialization of some registers, and maintaining the order among new and other active threads. Each TU in Mitosis has its own LRF while all TUs share GRF, as shown in Fig. 16. Also, all TUs share register versioning table (RVT) that tracks which TUs have a copy of given logical register.

If there is no predecessor thread that has the requested register value, the GRF will be a supplier. Each TU also has the register validation store (RVS) to store the copies of register values that are read for the first time by a speculative thread but not produced by it. The register values generated by the p-slice and used by the speculative thread are also stored into RVS. During the thread validation process, the register values in the RVS are compared against the actual values of the corresponding registers in the predecessor thread [19].

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