By Sundararajan Sriram
ISBN-10: 1420048015
ISBN-13: 9781420048018
Techniques for Optimizing Multiprocessor Implementations of sign Processing Applications
An integral portion of the knowledge age, sign processing is embedded in numerous patron units, together with mobile phones and electronic tv, in addition to in communique infrastructure, corresponding to media servers and mobile base stations. a number of programmable processors, in addition to customized operating in parallel, are had to in attaining the computation throughput required of such purposes.
Reviews vital study in key parts on the topic of the multiprocessor implementation of multimedia systems
Embedded Multiprocessors: Scheduling and Synchronization, moment Edition offers architectures and layout methodologies for parallel structures in embedded electronic sign processing (DSP) purposes. It discusses program modeling suggestions for multimedia structures, the incorporation of interprocessor verbal exchange bills into multiprocessor scheduling judgements, and a modeling technique (the synchronization graph) for multiprocessor procedure functionality research. The booklet additionally applies the synchronization graph version to advance and software program optimizations which could considerably decrease the interprocessor verbal exchange overhead of a given schedule.
Chronicles contemporary job 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 facility of multiprocessors
This booklet explores the optimization of interprocessor communique and synchronization in embedded multiprocessor platforms. It exhibits you the way to layout multiprocessor desktops which are streamlined for multimedia functions.
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Additional resources for Embedded Multiprocessors: Scheduling and Synchronization, Second Edition
Sample text
1 Exploiting Instruction Level Parallelism ILP in Programmable DSP Processors DSP processors have incorporated ILP techniques since inception; the key innovation in the very first DSPs was a single cycle multiply-accumulate unit. In addition, almost all DSP processors today employ an architecture that includes multiple internal busses allowing multiple data fetches in parallel with an instruction fetch in a single instruction cycle; this is also known as a “Harvard” architecture. 1 shows an example of a modern DSP processor (Texas Instruments TMS320C54x DSP) containing multiple address and data busses, and parallel address generators.
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.
For this reason, several modern DSP processors have adopted the VLIW approach; at the same time, as discussed before, the regular nature of DSP algorithms lend themselves well to the static scheduling approach employed in VLIW machines. We will discuss some of these machines in detail in the following sections. Given multiple processors capable of executing autonomously, the program threads running on the processors may be tightly or loosely coupled to one another. In a tightly coupled architecture the processors may run in lock step executing the same instructions on different data sets (for example systolic arrays), or they may run in lock step, but operate on different instruction sequences (similar to VLIW).
Embedded Multiprocessors: Scheduling and Synchronization, Second Edition by Sundararajan Sriram
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