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The growing use of Big Data frameworks on large machines highlights the importance of performance issues and the value of High Performance Computing (HPC) technology. This paper looks carefully at three major frameworks Spark, Flink and Message Passing Interface (MPI) both in scaling across nodes and internally over the many cores inside modern nodes. We focus on the special challenges of the Java...
Ground-penetrating radar systems are useful for a variety scientific studies, including monitoring changes to the polar ice sheets that may give clues to climate change. A key step in analyzing radar echograms is to identify boundaries between layers of material (such as air, ice, rock, etc.). In this paper, we propose an automated technique for identifying these boundaries, posing this as an inference...
We investigate the performance and the scalability metrics of the Event-based Infrastructure and consistency model of the IDIOM (Internet Documentation and Integration of Metadata) framework that is for federating online digital entities. The IDIOM consists of tools and services for supporting Cyberinfrastructure based scientific research. This system supports a number of existing online Web 2.0 research...
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