August 2018 Symposium
August 21, 2018
OpenTopography: A gateway to high resolution topography data and services
Presenter(s): Choonhan Youn (SDSC)
Over the past decade, there has been dramatic growth in the acquisition of publicly funded high-resolution topographic and bathymetric data for scientific, environmental, engineering and planning purposes. Because of the richness of these data sets, they are often extremely valuable beyond the application that drove their acquisition and thus are of interest to a large and varied user community. However, because of the large volumes of data produced by high-resolution mapping technologies such as lidar, it is often difficult to distribute these datasets. Furthermore, the data can be technically challenging to work with, requiring software and computing resources not readily available to many users. Some of these complex algorithms require high performance computing resources to run efficiently, especially in an on-demand processing and analysis environment. With the steady growth in the number of users, complex and resource intensive algorithms to generate derived products from these invaluable datasets, HPC resources are becoming more necessary to meet the increasing demand. By utilizing the comet XSEDE resource, OpenTopography aims to democratize access and processing of these high-resolution topographic data.
Development of multiple scattering theory method: the recent progress and applications
Presenter(s): Yang Wang (PSC)
Multiple scattering theory is an ab initio electronic structure calculation method in the framework of density functional theory. It differs from other ab initio methods in that it is an all-electron method and is not based on variational approach. Its advantage of having easy access to the Green function makes it a unique tool for the study of random alloys and electronic transport. In this presentation, I will give a brief overview of the multiple scattering theory, and will discuss the recent ECSS projects relevant to the development and applications of multiple scattering theory method.