Method for managing energy of local dynamic reconfigurable system by coordinatively processing software and hardware

Abstract

The invention relates to a method for managing energy of a local dynamic reconfigurable system by coordinatively processing software and hardware. The conventional reconfigurable system has a high energy efficiency ratio. The method comprises the following steps of: performing task partitioning on application according to functional modules and establishing corresponding software task and hardware task; acquiring the power consumption of processing the software task and the hardware task, the time of processing the software task and the hardware task and the hardware task configuration time, and selecting the software task and the hardware task according to the principle of local energy optimum; constructing a directed acyclic graph of the application according to the relation constraint between the software task and the hardware task, and calculating the task priority level; and finally, coordinatively processing the software task and the hardware task. Due to the adoption of the method, an application example which is operated on a reconfigurable system of a dynamic part and comprises a plurality of tasks can realize effective energy management, so that the reconfigurable system of the dynamic part processes the application example and reduces energy consumption.

Description

technical field [0001] The invention belongs to the field of embedded systems, and relates to a field programmable gate array local dynamic reconfigurable system, in particular to an energy management method for a local dynamic reconfigurable system with software and hardware coordinated processing. Background technique [0002] With the emergence of FPGA reconfigurable technology, the traditional embedded design method has been greatly changed. Reconfigurable computing, as a new computing model in the space-time domain, has broad application prospects in the field of embedded and high-performance computing. It has become the development trend of the current embedded system. The development of partial dynamic reconfigurable technology represents a new reconfigurable design concept, mostly composed of microprocessors and reconfigurable hardware. Reconfigurable hardware can use FPGA fine-grained logic units, or specific The coarse-grained module of functions makes the executi...

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Problems solved by technology

[0004] Since hardware resource utilization and system processing time are the main factors determining the power consumption of a reconfigurable system, the above-mentioned reconfigurable hardware and microprocessors have their own shortcomings and advantages in performing different computing tasks. If there is no local Reconfigurable technology and effective energy management methods of coordinated operation of hardware and software cannot combine their respective advantages, which will significantly increase the power consumption of dynamic partially reconfigurable systems

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