Pipelined Processor Farms - Structured Design for Embedded by Andy C. Downton

By Andy C. Downton

This e-book outlines a strategy for using parallel processing in actual time platforms. It presents an creation to parallel processing mostly, and to embedded platforms particularly. one of the embedded platforms are processors in such functions as autos, numerous equipment, IPGAs (field programmable gate arrays), multimedia embedded structures comparable to these utilized in the pc video game undefined, and extra. * provides layout and simulation instruments in addition to case stories. * First presentation of this fabric in ebook shape.

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4 is a classification of pipeline types. The classification is meant as guidance only, indeed some categories are omitted to avoid repetition. The category ‘algorithmic’ is not strictly a method of work allocation as it is possible to structure a decomposition into a set of independent functions organized either as a farm or a flow. The farm will be chosen as a way of load-balancing provided there are enough functions of suitable granularity. PIPELINE TYPES 25 for all forms temporal data-parallel minimum Fig.

A further assumption was that task duration times are deterministic. However in [373], varying task durations were represented by mean values but the linear-programming technique was retained. Maximum performance was more closely estimated by including a number of overhead terms. In one version of the scheme [338], tasks were placed on workers in advance as if the 28 BASIC CONCEPTS distribution of tasks had been formed by demand-based farming. In theory, task granularity can be found by optimizing the governing equations for the model.

An avionics system has a lifetime greater than thirty years), system (or code) portability [23] is an important method of amortizing the investment in the original embedded software. A PPF design is a pipeline of processor farms. The essenceof a processor farm within PPF is one central farmer, manager, or controller process, and a set of worker or slave processesspread acrossthe processor farm. Notice that there is no insistence in PPF on having a single worker process per processor, though in fact our farm template design (Chapter 7) does not exploit parallel slackness [329] by having more than one process to a processor.

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Pipelined Processor Farms - Structured Design for Embedded by Andy C. Downton
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