High-Speed Gridding System for Geological Surfaces using Multi-threading Technology.
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| Title: | High-Speed Gridding System for Geological Surfaces using Multi-threading Technology. |
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| Authors: | Nojiogaki, S.1 s-nonogaki@aist.go.jp, Masumoto, S.2, Nemoto, T.2 |
| Source: | International Journal of Geoinformatics. Mar2017, Vol. 13 Issue 1, p1-10. 10p. |
| Subjects: | Digital elevation models, Threads (Computer programs), Surface analysis, Geoinformatics, Geology software, Computer simulation |
| Abstract: | The purpose of this study is to develop a high-speed gridding system for geological surfaces to facilitate more accurate geological analyses. We have developed a new gridding system using OpenMP multi-threading technology. The proposed system is designed to generate a Digital Elevation Model (DEM) of a geological surface using a B-spline fitting algorithm. Test calculations to evaluate the system were performed using four types of point data: (1) a small number of equality data, (2) a large number of equality data, (3) a small number of inequality data, and (4) a large number of inequality data. In these tests, we compared computation time for single-thread gridding to that of multi-thread gridding. Results confirmed that the developed system realized high-speed gridding. In addition, the results revealed that gridding parameters affected multi-threading performance. It is expected that the proposed system will improve gridding speed and lead to more accurate subsurface geological analyses. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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