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Parallel programming enhancements for processing hydrographic data.
| Content Provider | CiteSeerX |
|---|---|
| Author | Layne, Geary Sarnowski, Krzysztof Miller, Mj Braud, Jim |
| Abstract | The research in this paper focuses on the I/O problem associated with a parallel application writing to a single physical disk. Included in our research are the original ideas that led to the first version of the parallel software, subsequent versions of the software derived from lessons learned from benchmark results, and speedup results of each version. The underlying purpose of this software is to process hydrographic data having a complicated, multi-tiered format. The data processing involves reading tens to hundreds of files containing raw data, filtering out extraneous data values, and writing the filtered data to a single file used in additional processing. The problem is not computationally intensive, but bound by the system’s file writing capability. Results show that the more responsible the software was for organizing the data before writing, the better the speedup. The critical factor for writing data efficiently involved the limitation of writing data over a single I/O controller. Our parallel software has fantastic utility where system specifications do not allow for the use of parallel file systems, or writing data over multiple I/O controllers. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Hydrographic Data Original Idea Processing Hydrographic Data System File Subsequent Version Parallel Programming Enhancement Extraneous Data Value Data Processing Speedup Result Parallel File System Fantastic Utility Parallel Application System Specification Single File Raw Data Parallel Software First Version Benchmark Result Single Physical Disk Multi-tiered Format Additional Processing Critical Factor |
| Content Type | Text |
| Resource Type | Article |
