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Hyperspectral Image Analysis with a Functional Data Model

Date and Time: 
Monday 2018 Apr 2nd
Location: 
CG Auditorium
Speaker: 
Doug Lindholm

Hyperspectral imaging instruments are producing large volumes of data that pose a challenge for data analysis. Hylatis is a NASA funded project to build interactive hyperspectral image analysis tools backed by cloud resources. Hylatis is built on the LaTiS software package which implements a Functional Data Model (FDM) that builds on the relational data model and relational algebra used by many database systems. The FDM captures the functional relationship between independent and dependent variables that are inherent in scientific data.

Speaker Description: 

Doug Lindholm has been wrangling scientific data at CU or UCAR since the early 1990s. Years of scientific programming and data management have contributed to an appreciation of software engineering and useful data abstractions. Doug currently works on the Web Team at CU's Laboratory for Atmospheric and Space Physics developing data services.

Event Category:

Functional Programming Concepts for Data Processing

Date and Time: 
Monday 2018 Apr 2nd
Location: 
CG Auditorium
Speaker: 
Chris Lindholm

Functional programming concepts and languages are becoming increasingly popular in industry, because they successfully address challenges related to complexity, maintainability, and correctness of software, especially as more applications move to parallel and distributed environments. This talk will introduce basic concepts important to functional programming, such as immutability and referential transparency, and how they might be applied to data processing or other scientific applications.

Speaker Description: 

Chris Lindholm has worked in the Data Systems division of CU's Laboratory for Atmospheric and Space Physics (LASP) for eight years. During that time, he has worked on data processing systems and data analysis for three NASA missions. He currently works on data access infrastructure using Scala (a functional programming language) and working out ways to use functional programming to improve scientific software.

Event Category:

Visualization of complex spacecraft orbits and multi-instrument observations

Date and Time: 
Monday 2018 Apr 2nd
Location: 
CG Auditorium
Speaker: 
Alexandria DeWole

Complex spacecraft orbits and multi-instrument observations can be challenging to visualize with traditional 2D plots. To facilitate the exploration of planetary science data, we have developed a set of web-based interactive 3D visualizations for the MAVEN and MMS missions using the free CesiumJS library. The Mars Atmospheric and Volatile Evolution (MAVEN) mission has been collecting data at Mars since September 2014. The MAVEN3D project allows playback of one day’s orbit at a time, displaying the spacecraft’s position and orientation.

Speaker Description: 

Alex DeWolfe manages the Science Data Centers for NASA’s MAVEN mission to Mars and the Emirates Mars Mission. She coordinates the design, development, implementation, and operation of science data processing systems for missions and instrument teams. She has a particular interest in scientific data visualization and oversees several projects related to developing visualization software.

Event Category:

Improved Data Curation and Exploration: Timelines for Visualizing Data Inventory

Date and Time: 
Monday 2018 Apr 2nd
Location: 
CG Auditorium
Speaker: 
Aaron Sweeney

Timelines are a very effective way of visualizing data inventory. They lead to the improvement of both data curation and exploration. Here, we present timelines for archived ocean-bottom pressure data and coastal tide gauge data at the National Centers for Environmental Information (NCEI). Metadata about the inventories are expressed in Javascript Object Notation (JSON) format and visualized on a timeline through an open-source Javascript library (VisJS). Through these timelines, gaps in coverage immediately become apparent.

Speaker Description: 

Dr. Sweeney is the water level (coastal tide gauge and deep-ocean bottom pressure recorder) data manager at the NOAA National Centers for Environmental Information, in support of the NOAA Tsunami Program. He uses a variety of software tools and programming languages, among them Python and Javascript, to make it easier for people to discover and access data. He also has had the pleasure of teaching introductory physics to undergraduates for several years.

Event Category:

Software Engineering for Fusion Reactor Design

Date and Time: 
Monday 2018 Apr 2nd
Location: 
CG Auditorium
Speaker: 
Wayne Arter

ITER is a global scientific collaboration to prove the feasibility of fusion energy from magnetically confined plasmas on an industrial scale. Construction of the ITER facilities is underway at Cadarache in the south of France. To finish detailed ITER design, operate and interpret ITER, and thence to design future fusion reactors, it would be desirable to have software to model the ionised plasma and its interactions which has a thirty-year-plus life span, capable not only of use but also of significant modification until c.2050.

Speaker Description: 

Dr. Arter has worked for many years at Culham where he is currently employed as a senior staff scientist by UKAEA, the UK Atomic Energy Authority. Important aspects of his current role are physics modelling, mathematical analysis and algorithm design. His interests also extend into allied fields, such as data analysis and visualisation, and CAD and mesh generation. Common to much of his research work has been the investigation of physical phenomena, by means of computer simulation.

Event Category:

HPC network stack on Arm

Date and Time: 
Wednesday 2018 Apr 4th
Location: 
CG Auditorium
Speaker: 
Pavel Shamis

Applications, programming languages, and libraries that leverage sophisticated network hardware capabilities have a natural advantage when used in today's and tomorrow's high-performance and data center computer environments. Modern RDMA based network interconnects provides incredibly rich functionality (RDMA, Atomics, OS-bypass, etc.) that enable low-latency and high-bandwidth communication services. The functionality is supported by a variety of interconnect technologies such as InfiniBand, RoCE, iWARP, Intel OPA, Cray's Aries/Gemini, and others.

Speaker Description: 

Pavel Shamis is Principal Research Engineer at ARM. He specializes in High Performance Computing (HPC), Message Parsing Interface (MPI), SHMEM (API for Parallel Programming), Partitioned Global Address Space (PGAS), Remote Direct Memory Access (RDMA), and Infiniband.

Event Category:

Utilizing Python to incorporate and tie together legacy code

Date and Time: 
Wednesday 2018 Apr 4th
Location: 
CG Auditorium
Speaker: 
Josh Elliott

Scientific software is often dependent on many disparate libraries of code written by multiple people over the course of decades. Legacy code is often not updated for fear of breaking already working code, which often drives the choice of programming language. This forces future developers to rely upon and utilize outdated and/or proprietary programming languages which can hinder scientific development and prevent the use of more advanced software techniques or tools. This tutorial will focus on utilizing Python to incorporate and tie together your existing IDL and/or Matlab code.

Speaker Description: 

Josh Elliott is a Scientific Programmer at the Laboratory for Atmospheric and Space Physics at the University of Colorado at Boulder. He has worked on scientific software in commercial, non-profit and academic settings with experience in multiple programming languages. He currently writes software for the NASA SORCE and MAVEN missions.

Event Category:

Video recorded: 

Slides, code examples and other tutorial material: https://github.com/spacemanjosh/Python-to-Legacy-Code-Tutorial

Beyond Matplotlib: Building Interactive Climate Data Visualizations with Bokeh and Friends

Date and Time: 
Thursday 2018 Apr 5th
Location: 
CG Auditorium
Speaker: 
Anderson Banihirwe

Visualization represents a major bottleneck in scientific research, engineering, data science, and data analytics. The tools in the Python scientific ecosystem make it very simple to do many of the tasks required, but building visualizations to help understand complex patterns and relationships in your data still typically involves a large amount of custom coding for every new type of plot. For the last few years, the Python data visualization ecosystem has expanded tremendously.

Speaker Description: 

Anderson is a graduating senior in Systems Engineering department at the University of Arkansas at Little Rock, and a former research intern at CISL/NCAR. He currently works at First Orion as a Data Scientist Intern in Little Rock, AR. He is interested in parallel and distributed computing, and data analytics infrastructures for Python's open source ecosystem.

Event Category:

Video recorded: 

Tutorial material available at: https://github.com/andersy005/beyond-matplotlib-tutorial-sea-2018

Contemporary peer code review, a lightweight, asynchronous method for ensuring high-quality code

Date and Time: 
Wednesday 2018 Apr 4th
Location: 
CG Auditorium
Speaker: 
Jeffrey Carver

Contemporary peer code review is a lightweight, asynchronous method for ensuring high-quality code. While this practice has been shown to be beneficial to help developers identify and remove faults from code, it is underutilized in scientific software. To remedy this situation, we propose a hands-on tutorial. The first part of the tutorial will provide important background information and motivation for the usefulness of contemporary peer code review.

Speaker Description: 

Jeffrey Carver is a Professor in the Department of Computer Science at the University of Alabama. He earned his PhD in 2003 from the University of Maryland. His research focuses on the application of empirical software engineering to study scientific software, peer-code review, software quality, human factors, and open-source software. He is the primary organizer of the SE4Science workshop series (http://se4science.org/workshops). He is a Senior Member of the IEEE and the ACM.

Event Category:

Profiling and Debugging with TAU Commander

Date and Time: 
Friday 2018 Apr 6th
Location: 
CG Auditorium
Speaker: 
Sameer Shende

TAU Commander is a high productivity performance engineering workflow manager for applying profiling and tracing tools for performance analysis of parallel programs at all scales. TAU Commander is based on the TAU Performance System, which has helped many projects scale up successfully on systems at Oak Ridge Leadership Computing Facility (OLCF), the National Energy Research Scientific Computing Center (NERSC), the Argonne Leadership Computing Facility (ALCF), and others.

Speaker Description: 

Sameer Shende is Director of the Performance Research Laboratory at the University of Oregon

Event Category:

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