" Heterogeneous Computing"related to papers

Abstract:Nowadays FFT convolution is widely applied to digital signal processing(DSP), and the past few years have witnessed the development of the heterogeneous multicore programmable system(HMPS). In addition, HMPS has been the mainstream in the field of DSP. So it is very important to study the high efficient implementation of large FFT convolution on the HMPS. In this paper, a high efficient pipelined overlap-add filter based on the overlap-add FFT convolution method is designed for the input streaming data. This paper introduces the implementation of large FFT convolution on the HMPS and achieves the high accuracy of filter result. Furthermore, a pipeline technology is adopted for the filter design to improve processing speed, throughout and parallelism of tasks. The Xilinx XC7V2000T FPGA verification result shows that the larger sampling points are involved in computing, the higher task parallelism, processing speed and throughout will be obtained. When the sample points reach 1M, the system average task parallelism is 5.33 with 2.745×106 clock cycles and the precision of 10-4.

Abstract:With the development of the embedded motion control system, the embedded controller based on heterogeneous multi-core will be one of the important development directions. In this paper, it firstly describes the effectiveness of heterogeneous multi-core controller, as well as the defects of existing controller in data communication interface. The heterogeneous processor“OMAPL138+FPGA” is the core of the motion controller in this design, OMAPL138 internal integrated ARM9 and DSP C6748 processor core. ARM9 has embedded Liunx operating system to enhance the coordination of multi-tasking controller. And DSP does not run the operating system to ensure real-time computing. This paper focuses on ARM and DSP, DSP and FPGA and the high-speed interface design and firmware design of the communication between controller and PC. Experiments show that the data exchange rate of the motion controller , the throughput and the stability are high, which provides reference for the high speed communication interface of heterogeneous multi - core controller.

Abstract:The system level chips are the most important devices of high-end electronic system and the multi-core system on chips are the main architectures of system level chips. The multi-core system on chips are well developed by the researchers and engineers. Unfortunately,the evolution path of the multi-core system is too complex to understand because of different applications and researchers’ background. So,the history of the evolution path of the multi-core system is discussed and concluded in this paper. It would help the reader to understand the history and the future of multi-core system on chips.