David Y. Hancock

ORCID: 0000-0001-8082-8980
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About
Contact & Profiles
Research Areas
  • Scientific Computing and Data Management
  • Distributed and Parallel Computing Systems
  • Advanced Data Storage Technologies
  • Cloud Computing and Resource Management
  • Research Data Management Practices
  • Civil and Structural Engineering Research
  • BIM and Construction Integration
  • Parallel Computing and Optimization Techniques
  • Air Traffic Management and Optimization
  • Functional Brain Connectivity Studies
  • Advanced MRI Techniques and Applications
  • Advanced Neuroimaging Techniques and Applications
  • Structural Engineering and Vibration Analysis
  • Data Quality and Management
  • Innovations in Concrete and Construction Materials
  • Cloud Data Security Solutions
  • Economic and Technological Systems Analysis
  • Peer-to-Peer Network Technologies
  • Structural mechanics and materials
  • Space exploration and regulation
  • Brain Tumor Detection and Classification
  • Network Time Synchronization Technologies
  • Nuclear Engineering Thermal-Hydraulics
  • Plasma and Flow Control in Aerodynamics
  • Global Public Health Policies and Epidemiology

Indiana University Bloomington
2009-2024

Indiana University – Purdue University Indianapolis
2023

Indiana University
2020-2022

Swisscom (Switzerland)
2022

ETH Zurich
2022

Institut national de recherche en informatique et en automatique
2022

NuVasive (United States)
2018-2019

University of Utah
2016

Stockport College
1990

Jetstream will be the first production cloud resource supporting general science and engineering research within XD ecosystem. In this report we describe motivation for proposing Jetstream, configuration of system as funded by NSF, team that is implementing communities expect to use new system. Our hope plan which become available in 2016, aid thousands researchers who need modest amounts computing power interactively. The implementation should increase size disciplinary diversity US...

10.1145/2792745.2792774 article EN 2015-01-01

Neuroscience is advancing standardization and tool development to support rigor transparency. Consequently, data pipeline complexity has increased, hindering FAIR (findable, accessible, interoperable reusable) access. brainlife.io was developed democratize neuroimaging research. The platform provides standardization, management, visualization processing automatically tracks the provenance history of thousands objects. Here, described evaluated for validity, reliability, reproducibility,...

10.1038/s41592-024-02237-2 article EN cc-by Nature Methods 2024-04-11

Through virtualization, single physical data planes can logically support multiple networking contexts. We propose HyPer4 as a portable virtualization solution. provides general purpose program, written in the P4 dataplane programming language, that may be dynamically configured to adopt behavior is functionally equivalent other programs. extends, through software, following features diverse P4-capable devices: ability store programs and either run them parallel (network slicing) or...

10.1145/2999572.2999607 article EN 2016-11-29

Abstract We describe the Open Diffusion Data Derivatives (O3D) repository: an integrated collection of preserved brain data derivatives and processing pipelines, published together using a single digital-object-identifier. The were generated modern diffusion-weighted magnetic resonance imaging (dMRI) with diverse properties resolution signal-to-noise ratio. In addition to data, we publish all pipelines (also referred as open cloud services). utilize methods for neuroimaging (diffusion-signal...

10.1038/s41597-019-0073-y article EN cc-by Scientific Data 2019-05-23

High-performance computing (HPC) is widely used in higher education for modeling, simulation, and AI applications. A critical piece of infrastructure with which to secure funding, attract retain faculty, teach students, supercomputers come high capital operating costs that must be considered against other competing priorities. This study applies the concepts production function model from economics evaluate if previous research on building a quantifying value investing generalizable wider...

10.48550/arxiv.2501.10264 preprint EN arXiv (Cornell University) 2025-01-17

Cyberinfrastructure is a word commonly used but lacking single, precise definition. One recognizes intuitively the analogy with infrastructure, and use of cyber to refer thinking or computing -- what exactly cyberinfrastructure as opposed information technology infrastructure? Indiana University has developed one more widely cited definitions cyberinfrastructure.

10.1145/1878335.1878347 article EN 2010-10-24

Jetstream2 will be a category I production cloud resource that is part of the National Science Foundation's Innovative HPC Program. The project's aim to accelerate science and engineering by providing "on-demand" programmable infrastructure built around core system at Indiana University four regional sites. an evolution Jetstream platform, which functions primarily as Infrastructure-as-a-Service cloud. lessons learned in architecture, distributed storage, container orchestration have...

10.1145/3437359.3465565 article EN Practice and Experience in Advanced Research Computing 2021-07-17

Purpose: How much to invest in research facilities has long been a question policy and practice higher education. This matter is time-sensitive due critical financial challenges at institutions the USA, with signs of significant problems Europe. The purpose this report present new techniques for assessment one particular type infrastructure - computing staff that support research. These approaches are timely because ongoing crises which may make it essential education difficult decisions...

10.48550/arxiv.2502.07833 preprint EN arXiv (Cornell University) 2025-02-10

Abstract This paper uses accounting concepts—particularly the concept of Return on Investment (ROI)—to reveal quantitative value scientific research pertaining to a major US cyberinfrastructure project (XSEDE—the eXtreme Science and Engineering Discovery Environment). XSEDE provides operational support services for advanced information technology systems, cloud supercomputers supporting non-classified research, with an average budget US$20M+ per year over period studied (2014–2021). To...

10.1007/s11192-022-04539-8 article EN cc-by Scientometrics 2023-02-14

Over the past decade, convergence of Cloud and High-Performance Computing (HPC) has undergone significant movement. We explore evolution, motivations, practicalities establishing on-premise research cloud infrastructure complementary nature with HPC commercial resources; under belief that clouds serve a unique role within education as accelerator. This is highlighted through exploring design tradeoffs in architecting versus resources, focusing on balance between utility, availability,...

10.1109/mcse.2024.3402389 article EN cc-by Computing in Science & Engineering 2024-05-21

In recent years, considerable attention has been given to assessing the value of investments in cyberinfrastructure (CI). This paper includes a survey current methods for assessment financial returns on investment (ROI) CI. Applying concept ROI proves challenging with regard service that, most academic environments, does not generate "sold amount" such as one would find buying and selling stocks. The concludes discussion future research directions challenges work is intended less definitive...

10.1145/3332186.3332228 article EN Proceedings of the Practice and Experience in Advanced Research Computing on Rise of the Machines (learning) 2019-07-28

As part of the SCinet Research Sandbox at Supercomputing 2011 conference, Indiana University (IU) demonstrated use Lustre high performance parallel file system over a dedicated 100 Gbps wide area network (WAN) spanning more than 3,500 km (2,175 mi). This demonstration functioned as proof concept and provided an opportunity to study Lustre's WAN. To characterize system, low level iperf tests, tests with IOR benchmark, suite real-world applications reading writing were run latency 50.5 ms. In...

10.5555/2388996.2389005 article EN IEEE International Conference on High Performance Computing, Data, and Analytics 2012-11-10

Jetstream is a first-of-a-kind system for the NSF - distributed production cloud resource. The awarded funds to create in November 2014. Here we review purpose creating Jetstream, present acceptance test results that define Jetstream's key characteristics, describe our experiences standing up an OpenStack-based environment, and share some of early scientific have been obtained by researchers students using this system. offers unique capability within XSEDE-supported US national...

10.1145/2949550.2949639 article EN cc-by-sa 2016-07-17

The economics of high performance computing are rapidly changing. Commercial cloud offerings, private research clouds, and pressure on the budgets institutions higher education federally-funded organizations all contributing factors. As such, it has become a necessity that expenses investments be analyzed considered carefully. In this paper we will analyze return investment (ROI) for three different kinds cyberinfrastructure resources: eXtreme Science Engineering Discovery Environment...

10.1109/ucc.2018.00031 article EN 2018-12-01

Summary Jetstream is a first of its kind system for the NSF — distributed production cloud resource. We review purpose creating Jetstream, discuss Jetstream's key characteristics, describe our experiences from year maintaining an OpenStack‐based environment, and share some early scientific impacts achieved by users. offers unique capability within XSEDE‐supported US national cyberinfrastructure, delivering interactive virtual machines (VMs) via Atmosphere interface. As multi‐region...

10.1002/cpe.4683 article EN Concurrency and Computation Practice and Experience 2018-09-02

As part of the SCinet Research Sandbox at Supercomputing 2011 conference, Indiana University (IU) demonstrated use Lustre high performance parallel file system over a dedicated 100 Gbps wide area network (WAN) spanning more than 3,500 km (2,175 mi). This demonstration functioned as proof concept and provided an opportunity to study Lustre's WAN. To characterize system, low level iperf tests, tests with IOR benchmark, suite real-world applications reading writing were run latency 50.5 ms. In...

10.1109/sc.2012.43 article EN International Conference for High Performance Computing, Networking, Storage and Analysis 2012-11-01

In recent years, considerable attention has been given to assessing the value of investments in cyberinfrastructure (CI). This paper focuses on assessment measured ways other than financial benefits - what might well be termed impact or outcomes. is a companion presented at PEARC'19 conference, which focused methods for returns investment. this we focus impacts such as effect publication production, importance publications, and assistance with major scientific accomplishments signified by...

10.1145/3355738.3355749 article EN 2019-07-29

Jetstream is the first production cloud funded by NSF for conducting general-purpose science and engineering research as well an easy-to-use platform education activities. Unlike many high-performance computing systems, uses interactive Atmosphere graphical user interface developed part of iPlant (now CyVerse) project focuses on use uniprocessor or multiprocessor. This provides a lower barrier entry educators, students, practicing scientists, engineers. A key Jetstream's mission to extend...

10.1145/3123458.3123466 article EN 2017-09-19

Abstract OBJECTIVE Onshore oil and gas projects can have large footprints with potentially significant impacts on local communities over its producing life. In complex developing world country contexts, project execution challenges are often exacerbated by a high background burden of disease fragile health system. The ExxonMobil-constructed operated Papua New Guinea (PNG) LNG Project (Project), the largest private investment in history Guinea, is an example development significantly...

10.2118/179227-ms article EN SPE International Conference and Exhibition on Health, Safety, Security, Environment, and Social Responsibility 2016-03-09

In 1997, Indiana University (IU) began a purposeful and steady drive to expand the use of supercomputers what we now call cyberinfrastructure. 2001, IU implemented first 1 TFLOPS supercomputer owned by operated for single US University. 2013, made an analogous investment achievement at PFLOPS level: Big Red II, Cray XE6/XK7, was capable (theoretical) performance that dedicated university resource. IU's high computing (HPC) resources have fostered innovation in disciplines from biology...

10.1145/2974927.2974956 article EN 2016-11-01
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