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Sustainability 2018, 10(3), 621; https://doi.org/10.3390/su10030621

A Parallel and Optimization Approach for Land-Surface Temperature Retrieval on a Windows-Based PC Cluster

1
,
1,2,* , 3
,
1
and
4,*
1
School of Resources & Environment, University of Electronic Science and Technology of China, 2006 Xiyuan Ave., West Hi-Tech Zone, Chengdu 611731, China
2
Institute of Remote Sensing Big Data, Big Data Research Center, University of Electronic Science and Technology of China, 2006 Xiyuan Road, West Hi-Tech Zone, Chengdu 611731, China
3
Texas A&M Engineering Experiment Station and High Performance Research Computing, Texas A&M University, College Station, TX 77843, USA
4
School of Geomatics and Urban Spatial Informatics, Beijing University of Civil Engineering and Architecture, No. 1 Zhanlanguan Road, Xicheng District, Beijing100044, China
*
Authors to whom correspondence should be addressed.
Received: 14 January 2018 / Revised: 20 February 2018 / Accepted: 22 February 2018 / Published: 28 February 2018
(This article belongs to the Special Issue Methodological Advances in Research on Sustainable Ecosystems)
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Abstract

Land-surface temperature (LST) is a very important parameter in the geosciences. Conventional LST retrieval is based on large-scale remote-sensing (RS) images where split-window algorithms are usually employed via a traditional stand-alone method. When using the environment to visualize images (ENVI) software to carry out LST retrieval of large time-series datasets of infrared RS images, the processing time taken for traditional stand-alone servers becomes untenable. To address this shortcoming, cluster-based parallel computing is an ideal solution. However, traditional parallel computing is mostly based on the Linux environment, while the LST algorithm developed within the ENVI interactive data language (IDL) can only be run in the Windows environment in our project. To address this problem, we combine the characteristics of LST algorithms with parallel computing, and propose the design and implementation of a parallel LST retrieval algorithm using the message-passing interface (MPI) parallel-programming model on a Windows-based PC cluster platform. Furthermore, we present our solutions to the problems associated with performance bottlenecks and fault tolerance during the deployment stage. Our results show that, by improving the parallel environment of the storage system and network, one can effectively solve the stability issues of the parallel environment for large-scale RS data processing. View Full-Text
Keywords: land-surface temperature retrieving; ENVI interactive data language (IDL); parallel computing; windows-based PC cluster; message passing interface (MPI); Samba land-surface temperature retrieving; ENVI interactive data language (IDL); parallel computing; windows-based PC cluster; message passing interface (MPI); Samba
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Tie, B.; Huang, F.; Tao, J.; Lu, J.; Qiu, D. A Parallel and Optimization Approach for Land-Surface Temperature Retrieval on a Windows-Based PC Cluster. Sustainability 2018, 10, 621.

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