Advection-Based Sparse Data Management for Visualizing Unsteady Flow

doi:10.1109/TVCG.2014.2346418

CORC > 北京大学 > 信息科学技术学院

	Advection-Based Sparse Data Management for Visualizing Unsteady Flow
	Guo, Hanqi ; Zhang, Jiang ; Liu, Richen ; Liu, Lu ; Yuan, Xiaoru ; Huang, Jian ; Meng, Xiangfei ; Pan, Jingshan
刊名	ieee可视化与计算机图示学汇刊
	2014
关键词	Flow visualization Data management High performance visualization Key-value store COHERENT STRUCTURES INTEGRATION
DOI	10.1109/TVCG.2014.2346418
英文摘要	When computing integral curves and integral surfaces for large-scale unsteady flow fields. a major bottleneck is the widening gap between data access demands and the available bandwidth (both I/O and in-memory). In this work, we explore a novel advection-based scheme to manage flow field data for both efficiency and scalability. The key is to first partition flow field into blocklets (e.g. cells or very fine-grained blocks of cells), and then (pre)fetch and manage blocklets on-demand using a parallel key-value store. The benefits are (1) greatly increasing the scale of local-range analysis (e.g. source-destination queries, streak surface generation) that can fit within any given limit of hardware resources; (2) improving memory and I/O bandwidth-efficiencies as well as the scalability of naive task-parallel particle advection. We demonstrate our method using a prototype system that works on workstation and also in supercomputing environments. Results show significantly reduced I/O overhead compared to accessing raw flow data. and also high scalability on a supercomputer for a variety of applications.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000344991700101&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Computer Science, Software Engineering; SCI(E); 4; ARTICLE; hanqi.guo@pku.edu.cn; jiang.zhang@pku.edu.cn; richen.liu@pku.edu.cn; lu.liu@pku.edu.cn; xiaoru.yuan@pku.edu.cn; huangj@eecs.utk.edu; mengxf@nscc-tj.gov.cn; panjsh@sdas.org; 12; 2555-2564; 20
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/151973]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Guo, Hanqi,Zhang, Jiang,Liu, Richen,et al. Advection-Based Sparse Data Management for Visualizing Unsteady Flow[J]. ieee可视化与计算机图示学汇刊,2014.
APA	Guo, Hanqi.,Zhang, Jiang.,Liu, Richen.,Liu, Lu.,Yuan, Xiaoru.,...&Pan, Jingshan.(2014).Advection-Based Sparse Data Management for Visualizing Unsteady Flow.ieee可视化与计算机图示学汇刊.
MLA	Guo, Hanqi,et al."Advection-Based Sparse Data Management for Visualizing Unsteady Flow".ieee可视化与计算机图示学汇刊 (2014).