Download Adaptable Embedded Systems by Antonio Carlos Schneider Beck, Carlos Arthur Lang Lisbôa, PDF

By Antonio Carlos Schneider Beck, Carlos Arthur Lang Lisbôa, Luigi Carro

As embedded platforms develop into extra complicated, designers face a few demanding situations at diverse degrees: they should develop functionality, whereas maintaining strength intake as little as attainable, they should reuse existent software program code, and whilst they should benefit from the additional good judgment on hand within the chip, represented by way of a number of processors operating jointly. This publication describes a number of innovations to accomplish such assorted and interrelated objectives, by means of adaptability. assurance contains reconfigurable structures, dynamic optimization suggestions comparable to binary translation and hint reuse, new reminiscence architectures together with homogeneous and heterogeneous multiprocessor structures, communique matters and NOCs, fault tolerance opposed to fabrication defects and gentle error, and at last, how you can mix numerous of those suggestions jointly to accomplish better degrees of functionality and flexibility. The dialogue additionally comprises easy methods to hire really good software program to enhance this new adaptive process, and the way this new type of software program has to be designed and programmed.

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In: IEEE International Workshop on Workload Characterization, WWC-4. 2001, pp. 3–14 (2001). 990739 5. : Closing the soc design gap. Computer 36(9), 119–121 (2003). 1109/MC. 1231200 6. : Computer architecture: a quantitative approach. No. v. 1 in The Morgan Kaufmann Series in Computer Architecture and Design. Morgan Kaufmann (2007). id=57UIPoLt3tkC 7. : Spec cpu2000: Measuring cpu performance in the new millennium. Computer 33(7), 28–35 (2000). 869367 8. ITRS: ITRS 2011 Roadmap. Tech. , International Technology Roadmap for Semiconductors (2011) 9.

The goal of this comparison is to demonstrate which technique better explores its particular parallelism type at different levels, considering six values for both ILP and TLP. 01 means that a hypothetic application only shows 1% of TLP available within its code (in the case of the multiprocessing systems). 01, it is assumed that only 1% of the total number of instructions can be executed in parallel on the superscalar processor. In these experiments, we considered the same power budget for the high-end single core and the multiprocessor approaches.

Again, the critical path increases, even more control hardware is necessary, but there is even more flexibility, besides the possibility of executing operations in parallel. The main principle remains the same, though: to group instructions to be executed in a more efficient manner, but now with some flexibility. This is, in fact, an example of a coarse-grained reconfigurable array, which will be presented in more details later in this chapter. 6 graphically shows the difference between using reconfigurable logic and a traditional parallel architecture to execute instructions.

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