Advection-Based Sparse Data Management for Visualizing Unsteady Flow
Advection-Based Sparse Data Management for Visualizing Unsteady Flow
复制标题
基于平流的稀疏数据管理,用于可视化不稳定流
DOI:
10.1109/tvcg.2014.2346418
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发表时间:
2014-12
影响因子:
5.2
通讯作者:
Pan Jingshan
中科院分区:
文献类型:
--
作者:
Guo Hanqi;Zhang Jiang;Liu Richen;Liu Lu;Yuan Xiaoru;Huang Jian;Meng Xiangfei;Pan Jingshan
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.
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DOI:
10.1145/1654059.1654076
发表时间:
2009-11
期刊:
Proceedings of the Conference on High Performance Computing Networking, Storage and Analysis
影响因子:
--
作者:
D. Pugmire;H. Childs;C. Garth;Sean Ahern;G. Weber
通讯作者:
D. Pugmire;H. Childs;C. Garth;Sean Ahern;G. Weber
影响因子:
2.5
作者:
Tony McLoughlin;R. Laramee;R. Peikert;F. Post;Min Chen
通讯作者:
Tony McLoughlin;R. Laramee;R. Peikert;F. Post;Min Chen
DOI:
10.1109/pacificvis.2008.4475463
发表时间:
2008-03
期刊:
2008 IEEE Pacific Visualization Symposium
影响因子:
--
作者:
Li Chen;I. Fujishiro
通讯作者:
Li Chen;I. Fujishiro
DOI:
10.1016/j.cag.2012.07.006
发表时间:
2012-12
期刊:
Computers & Graphics
影响因子:
--
作者:
M. Edmunds;R. Laramee;Guoning Chen;N. Max;E. Zhang;C. Ware
通讯作者:
M. Edmunds;R. Laramee;Guoning Chen;N. Max;E. Zhang;C. Ware
DOI:
10.1109/ldav.2012.6378984
发表时间:
2012-12
期刊:
IEEE Symposium on Large Data Analysis and Visualization (LDAV)
影响因子:
--
作者:
Chun-Ming Chen;B. Nouanesengsy;Teng-Yok Lee;Han-Wei Shen
通讯作者:
Chun-Ming Chen;B. Nouanesengsy;Teng-Yok Lee;Han-Wei Shen