Manish Verma, Peter Marwedel's Advanced Memory Optimization Techniques for Low-Power PDF

By Manish Verma, Peter Marwedel

ISBN-10: 1402058969

ISBN-13: 9781402058967

ISBN-10: 1402058977

ISBN-13: 9781402058974

The layout of embedded platforms warrants a brand new standpoint as a result of the following purposes: to start with, gradual and effort inefficient reminiscence hierarchies have already develop into the bottleneck of the embedded platforms. it's documented within the literature because the reminiscence wall challenge. Secondly, the software program operating at the modern embedded units is changing into more and more complicated. it's also good understood that no silver bullet exists to resolve the reminiscence wall challenge. for this reason, this ebook explores a collaborative method through providing novel reminiscence hierarchies and software program optimization recommendations for the optimum usage of those reminiscence hierarchies. Linking reminiscence structure layout with memory-architecture acutely aware compilation ends up in quick, energy-efficient and timing predictable reminiscence accesses. The evaluate of the optimization recommendations utilizing real-life benchmarks for a unmarried processor method, a multiprocessor system-on-chip (SoC) and for a electronic sign processor method, reviews major mark downs within the power intake and function development of those platforms. The publication provides a variety of optimizations, steadily expanding within the complexity of study and of reminiscence hierarchies. the ultimate bankruptcy covers optimization innovations for functions along with a number of strategies present in latest embedded units. complex reminiscence Optimization options for Low strength Embedded Processors is designed for researchers, complier writers and embedded process designers / architects who desire to optimize the strength and function features of the reminiscence subsystem.

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Extra resources for Advanced Memory Optimization Techniques for Low-Power Embedded Processors

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This should result in more energy efficient scratchpad allocations for the Frac. SA approach than those for the SA approach. 5(a), as the energy values for the Frac. SA approach are smaller than or equal to those for the SA approach. However, as discussed earlier, the Frac. SA approach cannot always determine a better allocation than the SA approach because the energy valence for each element within a memory object is not always a constant. 5(b), we observe that at only three points (100, 200 and 300 bytes) the Frac.

7. Multi-Process Edge Detection: Energy Consumption for Varying Compute Processors and Scratchpad Sizes (Cycle Latency = 1 Master Cycle) execution time values for the Frac. SA approach and the SA approach. The average energy value for each benchmark is computed by averaging over all energy values obtained for scratchpad memories of 128, 256, 512 and 1024 bytes. Subsequently, the value is normalized against the energy value obtained for a system without a scratchpad. The same procedure is used to compute the normalized averaged execution time values for the benchmarks.

The SA approach achieves a maximum total energy reduction of 71%, 84%, 87% and 88% for main memories with 1, 5, 10 and 20 master clock latencies, respectively. 3 M5 DSP The M5 DSP in its default configuration contains a large onchip group memory to hold the data variables. The energy dissipation of the data memory hierarchy is improved by inserting a small and energy efficient L1 scratchpad or group memory. The approaches presented in this chapter and in the subsequent chapters reduce the energy dissipation through the improved utilization of the L1 scratchpad memory.

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Advanced Memory Optimization Techniques for Low-Power Embedded Processors by Manish Verma, Peter Marwedel


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