Single-particle 3D reconstruction on specialized stream architecture and comparison with GPGPUs

作     者：段勃 Wang Wendi Tan Guangming Meng Dan 

作者机构：Institute of Computing TechnologyChinese Academy of Sciences 

基　　金：Supported by the National Basic Research Program of China(No.2012CB316502) the National High Technology Research and DevelopmentProgram of China(No.2009AA01A129) the National Natural Science Foundation of China(No.60921002) 

出 版 物：《High Technology Letters》 (高技术通讯（英文版）)

年 卷 期：2014年第20卷第4期

页      码：333-345页

摘      要：The wide acceptance and data deluge in medical imaging processing require faster and more efficient systems to be *** to the advances in heterogeneous architectures recently,there has been a resurgence in the first research aimed at FPGA-based as well as GPGPU-based accelerator *** paper quantitatively analyzes the workload,computational intensity and memory performance of a single-particle 3D reconstruction application,called EMAN,and parallelizes it on CUDA GPGPU architectures and decouples the memory operations from the computing flow and orchestrates the thread-data mapping to reduce the overhead of off-chip memory *** it exploits the trend towards FPGA-based accelerator design,which is achieved by offloading computingintensive kernels to dedicated hardware ***,a customized memory subsystem is also designed to facilitate the decoupling and optimization of computing dominated data access *** paper evaluates the proposed accelerator design strategies by comparing it with a parallelized program on a 4-cores *** CUDA version on a GTX480 shows a speedup of about 6 *** performance of the stream architecture implemented on a Xilinx Virtex LX330 FPGA is justified by the reported speedup of 2.54 ***,measured in terms of power efficiency,the FPGA-based accelerator outperforms a 4-cores CPU and a GTX480 by 7.3 times and 3.4 times,respectively.

主 题 词：单粒子 架构 三维重建 FPGA 外存储器 设计策略 计算强度 数据访问模式 

学科分类：08[工学] 0710[理学-生物科学类] 0831[工学-公安技术类] 0810[工学-土木类] 1205[管理学-图书情报与档案管理类] 0807[工学-电子信息类] 080203[080203] 0805[工学-能源动力学] 0802[工学-机械学] 0836[0836] 0811[工学-水利类] 0812[工学-测绘类] 0702[理学-物理学类] 

核心收录：

D　O　I：10.3772/j.issn.1006-6748.2014.04.001

馆 藏 号：203120259...