A5032231503- Distributed and Parallel Computing Systems
- Scientific Computing and Data Management
- Advanced Data Storage Technologies
- Parallel Computing and Optimization Techniques
- Cloud Computing and Resource Management
- Peer-to-Peer Network Technologies
- Research Data Management Practices
- Distributed systems and fault tolerance
- Machine Learning in Materials Science
- Medical Imaging Techniques and Applications
- Caching and Content Delivery
- Computational Drug Discovery Methods
- Service-Oriented Architecture and Web Services
- Meteorological Phenomena and Simulations
- Climate variability and models
- Data Quality and Management
- Big Data and Business Intelligence
- Computational Physics and Python Applications
- Climate change impacts on agriculture
- Semantic Web and Ontologies
- IoT and Edge/Fog Computing
- Biomedical Text Mining and Ontologies
- Advanced X-ray Imaging Techniques
- Topic Modeling
- Genomics and Phylogenetic Studies
University of Chicago
2016-2025
Argonne National Laboratory
2016-2025
Physical Sciences (United States)
2024
University of Illinois Chicago
2013-2024
Future Earth
2024
University of Nevada, Reno
2024
University of Houston
2024
X-ray Instrumentation Associates (United States)
2022
Office of Scientific and Technical Information
2008-2022
Kennesaw State University
2022
“Grid” computing has emerged as an important new field, distinguished from conventional distributed by its focus on large-scale resource sharing, innovative applications, and, in some cases, high performance orientation. In this article, the authors define field. First, they review “Grid problem,” which is defined flexible, secure, coordinated sharing among dynamic collections of individuals, institutions, and resources—what referred to virtual organizations. such settings, unique...
Computing in science and engineering is now ubiquitous: digital technologies underpin, accelerate, enable new, even transformational, research all domains. Access to an array of integrated well-supported high-end services critical for the advancement knowledge. Driven by community needs, Extreme Science Engineering Discovery Environment (XSEDE) project substantially enhances productivity a growing scholars, researchers, engineers (collectively referred as "scientists"' throughout this...
The Globus system is intended to achieve a vertically integrated treatment of application, middleware, and net work. A low-level toolkit provides basic mechanisms such as communication, authentication, network information, data access. These are used con struct various higher level metacomputing services, parallel programming tools schedulers. long- term goal build an adaptive wide area resource environment (AWARE), set services that enable applications adapt heteroge neous dynamically...
Cloud computing has become another buzzword after Web 2.0. However, there are dozens of different definitions for cloud and seems to be no consensus on what a is. On the other hand, is not completely new concept; it intricate connection relatively but thirteen-year established grid paradigm, relevant technologies such as utility computing, cluster distributed systems in general. This paper strives compare contrast with from various angles give insights into essential characteristics both.
Increasingly, computing addresses collaboration, data sharing, and interaction modes that involve distributed resources, resulting in an increased focus on the interconnection of systems both within across enterprises. These evolutionary pressures have led to development Grid technologies. The authors' work focuses nature services respond protocol messages. provides extensible set can be aggregated various ways meet needs virtual organizations, which themselves defined part by they operate share.
Grid technologies enable large-scale sharing of resources within formal or informal consortia individuals and/or institutions: what are sometimes called virtual organizations. In these settings, the discovery, characterization, and monitoring resources, services, computations challenging problems due to considerable diversity; large numbers, dynamic behavior, geographical distribution entities in which a user might be interested. Consequently, information services vital part any software...
Article Free Access Share on A security architecture for computational grids Authors: Ian Foster Argonne National Laboratory, Argonne, IL ILView Profile , Carl Kesselman Information Sciences Institute, University of Southern California, Marina del Rey, CA CASearch about this author Gene Tsudik CAView Steven Tuecke ILSearch Authors Info & Claims CCS '98: Proceedings the 5th ACM conference Computer and communications securityNovember 1998Pages...
Grid computing has emerged as an important new field, distinguished from conventional distributed by its focus on large-scale resource sharing, innovative applications, and, in some cases, high-performance orientation. In this article, we define field. First, review the problem, which flexible, secure, coordinated sharing among dynamic collections of individuals, institutions, and resources-what refer to virtual organizations. such settings, encounter unique authentication, authorization,...
We compare ensembles of water supply and demand projections from 10 global hydrological models six gridded crop models. These are produced as part the Inter-Sectoral Impacts Model Intercomparison Project, with coordination Agricultural Improvement driven by outputs general circulation run under representative concentration pathway 8.5 Fifth Coupled Project. Models project that direct climate impacts to maize, soybean, wheat, rice involve losses 400-1,400 Pcal (8-24% present-day total) when...
One of the many definitions "cloud" is that an infrastructure-as-a-service (IaaS) system, in which IT infrastructure deployed a provider's data center as virtual machines. With IaaS clouds' growing popularity, tools and technologies are emerging can transform organization's existing into private or hybrid cloud. OpenNebula open source, manager deploys virtualized services on both local pool resources external clouds. Haizea, resource lease manager, act scheduling back end for OpenNebula,...
Abstract With current annual production at over 600 million tonnes, wheat is the third largest crop in world behind corn and rice, an essential source of carbohydrates for millions people. While grown a wide range environments, it common major wheat‐producing countries grain filling to occur when soil moisture declining temperature increasing. Average global temperatures have increased last decades are predicted continue rising, along with greater frequency extremely hot days. Such events...
In "grids" and "collaboratories", we find distributed communities of resource providers consumers, within which often complex dynamic policies govern who can use resources for purpose. We propose a new approach to the representation, maintenance enforcement such that provides scalable mechanism specifying enforcing these policies. Our allows delegate some authority maintaining fine-grained access control communities, while still ultimate over their resources. also describe prototype...
The Open Science Grid (OSG) provides a distributed facility where the Consortium members provide guaranteed and opportunistic access to shared computing storage resources. OSG support for evolution of infrastructure through activities that cover operations, security, software, troubleshooting, addition new capabilities, existing engagement with communities. SciDAC-2 project specific manage evolve it's use. innovative aspects are maintenance performance collaborative (shared & common)...
The realization of end-to-end quality service (QoS) guarantees in emerging network-based applications requires mechanisms that support first dynamic discovery and then advance or immediate reservation resources will often be heterogeneous type implementation independently controlled administered. We propose the Globus Architecture for Reservation Allocation (GARA) to address these four issues. GARA treats both reservations computational elements such as processes, network flows, memory...
In recent years, there has been a dramatic increase in the amount of available computing and storage resources, yet few have able to exploit these resources an aggregated form. We present Condor-G system, which leverages software from Globus Condor allow users harness multi-domain as if they all belong one personal domain. describe structure how it handles job management, resource selection, security fault tolerance.