Embedded Multiprocessors: Scheduling and Synchronization, by Sundararajan Sriram

By Sundararajan Sriram

Techniques for Optimizing Multiprocessor Implementations of sign Processing Applications

An crucial portion of the data age, sign processing is embedded in various client units, together with cellphones and electronic tv, in addition to in communique infrastructure, reminiscent of media servers and mobile base stations. a number of programmable processors, in addition to customized operating in parallel, are had to in achieving the computation throughput required of such functions.

Reviews vital study in key parts concerning the multiprocessor implementation of multimedia systems
Embedded Multiprocessors: Scheduling and Synchronization, moment Edition provides architectures and layout methodologies for parallel platforms in embedded electronic sign processing (DSP) purposes. It discusses program modeling suggestions for multimedia structures, the incorporation of interprocessor communique bills into multiprocessor scheduling judgements, and a modeling method (the synchronization graph) for multiprocessor procedure functionality research. The booklet additionally applies the synchronization graph version to advance and software program optimizations that may considerably lessen the interprocessor verbal exchange overhead of a given schedule.

Chronicles fresh task facing single-chip multiprocessors and dataflow models
This version updates the history fabric on present embedded multiprocessors, together with single-chip multiprocessors. It additionally summarizes the hot examine on dataflow versions for sign processing that has been performed because the e-book of the 1st edition.

Harness the ability of multiprocessors
This publication explores the optimization of interprocessor verbal exchange and synchronization in embedded multiprocessor structures. It indicates you the way to layout multiprocessor computers which are streamlined for multimedia purposes.

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Extra resources for Embedded Multiprocessors: Scheduling and Synchronization, Second Edition

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A targetted hardware co-processor tends to be more area and power efficient than a fully programmable processor. The programmable processing elements can then be used for functions that need the flexibility of a software solution. The drawback is this results in a heterogeneous architecture that is more difficult to program and debug than a fully homogeneous architecture. 7 Single-Chip Multiprocessors from Texas Instruments In contrast to the picoChip approach of placing hundreds of relatively simple processing elements on chip with a modest amount of memory per processor, it is also possible to place a few powerful processors running at high clock speeds, each with relatively large amounts of memory.

The microcontroller is thus ideal for performing user interface and protocol processing type functions that are somewhat asynchronous in nature, while the DSP is more suited to signal processing tasks that tend to be synchronous and predictable. Even though new DSP processors boasting microcontroller capabilities have been introduced recently (for example the Hitachi SH-DSP and the TI TMS320C27x series) an ARM/DSP two processor solution is expected to be popular for embedded signal processing/control applications in the near future.

The ordered memory access approach discussed in Chapters 7 to 9 requires special hardware support. When such support is not available, we can utilize a set of software-based approaches to reduce synchronization overhead. 12 EMBEDDED MULTIPROCESSORS These techniques for reducing synchronization overhead consist of efficient algorithms that minimize the overall synchronization activity in the implementation of a given self-timed schedule. , the objective of a certain set of synchronizations is guaranteed as a side effect of other synchronization points in the system.

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