A5058303997- Distributed and Parallel Computing Systems
- Parallel Computing and Optimization Techniques
- Scientific Computing and Data Management
- Advanced Data Storage Technologies
- Gamma-ray bursts and supernovae
- Pulsars and Gravitational Waves Research
- Computational Physics and Python Applications
- Botanical Research and Applications
- Service-Oriented Architecture and Web Services
- Advanced Software Engineering Methodologies
- Astro and Planetary Science
- Advanced Database Systems and Queries
- Peer-to-Peer Network Technologies
- Interprofessional Education and Collaboration
- Data Management and Algorithms
- Semantic Web and Ontologies
- Cosmology and Gravitation Theories
- Geophysics and Sensor Technology
- Obesity, Physical Activity, Diet
- Simulation Techniques and Applications
- Child Nutrition and Feeding Issues
- Relativity and Gravitational Theory
- Eating Disorders and Behaviors
- Cloud Computing and Resource Management
- advanced mathematical theories
Liverpool John Moores University
2020-2024
Perimeter Institute
2010
Wirral University Teaching Hospital NHS Foundation Trust
2010
Louisiana State University
2005-2008
Cardiff University
2006-2007
Max Planck Institute for Gravitational Physics
1999-2004
Max Planck Society
2003
Albert Einstein College of Medicine
2002
This is the second in a series of papers on construction and validation three-dimensional code for solution coupled system Einstein equations general relativistic hydrodynamic equations, application this to problems astrophysics. In particular, we report accuracy our long-term dynamical evolution stars some new physics results obtained process testing. The following aspects have been validated: generation initial data representing perturbed polytropic models (both rotating nonrotating),...
Grid technology is widely emerging. Still, there an eminent shortage of real users, mostly due to the lack a “critical mass” deployed and reliable higher-level services, tailored application needs. The GridLab project aims provide fundamentally new capabilities for applications exploit power computing, thus bridging gap between needs existing middleware. We present overview GridLab, large-scale, EU-funded spanning over dozen groups in Europe US. first outline our vision Grid-empowered then...
Core Grid technologies are rapidly maturing, but there remains a shortage of real applications. One important reason is the lack simple and high-level application programming toolkit, bridging gap between existing middleware application-level needs. The Application Toolkit (GAT), as currently developed by EC-funded project GridLab, provides this missing functionality. As seen from application, GAT unified interface to infrastructure, tailored needs programmers users. A uniform will be needed...
Grid technology has matured considerably over the past few years.Progress in both implementation and standardization is reaching a level of robustness that enables production quality deployments grid services academic research community with heightened interest early adoption industrial community.Despite this progress, applications are far from ubiquitous, new require an enormous amount programming effort just to see first light.A key impediment accelerated deployment scarcity high-level...
Cactus is an open source problem solving environment designed for scientists and engineers. Its modular structure facilitates parallel computation across different architectures collaborative code development between groups. The Code originated in the academic research community, where it has been developed used over many years by a large international collaboration of physicists computational scientists. We discuss how intensive computing requirements physics applications now using...
In recent years, many different numerical evolution schemes for Einstein's equations have been proposed to address stability and accuracy problems that plagued the relativity community decades. Some of these approaches tested on spacetimes, conclusions drawn based tests. However, differences in results originate from sources, including not only formulations equations, but also gauges, boundary conditions, methods so on. We propose build up a suite standardized testbeds comparing are designed...
After a decade where HEC (high-end computing) capability was dominated by the rapid pace of improvements to CPU clock frequency, performance next-generation supercomputers is increasingly differentiated varying interconnect designs and levels integration. Understanding tradeoffs these system designs, in context high-end numerical simulations, key step towards making effective petascale computing reality. This work represents one most comprehensive evaluation studies date on modern NEC...
In 1916, Albert Einstein published his famous general theory of relativity, which contains the rules gravity and provides basis for modern theories astrophysics cosmology. For many years, physicists, astrophysicists mathematicians have striven to develop techniques unlocking secrets contained in Einstein's gravity; more recently, computational science research groups added their expertise endeavor. Because underlying scientific project such a demanding rich system science, developed solve...
Children’s fussy eating is associated with a reduced vegetable intake. This quasi-experimental study evaluated “Big Chef Little Chef” (BCLC), nursery-based cooking skills programme aimed at reducing food fussiness and increasing willingness to try green vegetables by incorporating repeated exposure sensory learning. Parent child (3–5 years) dyads attended BCLC for four/1.5 h weekly sessions. A comparison group was recruited after completion single education session week 1. questionnaire...
The Testbed and Applications working group of the European Grid Forum (EGrid) is actively building experimenting with a grid infrastructure connecting several research-based supercomputing sites located in Europe. paper reports on our first feasibility study: running self-migrating version Cactus simulation code across testbed, including "live" remote data visualization steering from different demonstration booths at Supercomputing 2000, Dallas, TX. We report problems that had to be resolved...
Component frameworks are complex systems that rely on many layers of abstraction to function properly. One essential requirement is a consistent means describing each individual component and how it relates both other components the whole framework. As designed be flexible by nature, description method should simultaneously powerful, lead efficient code, easy use, so new users can quickly adapt their own code work with In this paper, we discuss Cactus Configuration Language (CCL) which used...
We are developing a system for collaborative research and development distributed group of researchers at different institutions around the world. In new paradigm computational science, computer code supporting infrastructure itself becomes collaborating instrument, just as an accelerator tool large numbers in particle physics. The design this "collaboratory" allows many users, with very areas expertise, to work coherently together, on computers Different supercomputers may be used...
We present a synopsis of the Grid Application Toolkit, under development in EU GridLab project, along with some new application scenarios which it will enable.
We are developing a system for collaborative research and development distributed group of researchers at different institutions around the world. In new paradigm computational science, computer code supporting infrastructure itself becomes collaborating instrument, just as an accelerator tool large numbers in particle physics, The design this "Collaboratory" allows many users, with very areas expertise, to work coherently together on computers Different supercomputers may be used...
One of the most common questions that students ask statistics advisors is ‘What test should I do?’ This paper explores use generative AI chatbots, specifically ChatGPT, as a tool to assist students, in particular those with limited experience statistics, selecting appropriate statistical tests for their analyses. Traditional methods, such flowcharts and online selectors, require at least basic understanding measurement scales research design, which can be an issue many who have exposure...