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We present a systematic approach to the interactive visual analysis of heterogeneous scientific data. The data consist of two interrelated parts given on spatial grids over time (e.g., atmosphere and ocean part from a coupled climate model). By integrating both data parts in a framework of coordinated multiple views (with linking and brushing), the joint investigation of features across the data parts...
This article describes the enablement of the MM5 Meteorological model as a Computational Grid Workflow. Considering the challenges involved in converting legacy high performance scientific applications as service based workflows, this article provides an in-depth analysis and solutions thereof to design a Grid service based workflow of HPC scientific applications. It also captures the need and design...
In this paper, we apply the theory of financial option to design a model to price grid resources. We use GridSim, a grid simulation tool to simulate resource usage in a Grid. First, we integrate our pricing model to GridSim to price resources for the usage pattern generated randomly for a grid. Then, we price resources on six real grids for the resource usage trace data on these grids that we collected...
This paper describes a scalable parallel method for interferometric synthetic aperture radar (InSAR) raw data simulation on graphic processing unit (GPU) with common unified device architecture (CUDA). The advantages of the new method rely on the three contributions: GPU hardware provides lots of stream processors for threads calculating, CUDA software environment runs thousands of threads working...
A simulation system based on HLA is developed in order to study simulation system architecture. This paper briefly introduces the importance of research, analyses requirements of system based on function and element, gives the design principle of cooperation and establishes assessment index, then brings the key technologies - FDMS and Multi-Resolution Modeling, designs a layered system configuration,...
In aerospace engineering, simulation is a key technology. Examples are pre-design studies, optimization, systems simulation, or mission simulations of aircrafts and space vehicles. These kinds of complex simulations need two distinct technologies. First, highly sophisticated simulation codes for each involved discipline (for example, codes for computational fluid dynamics, structural analysis, or...
In this paper, we tackle the problem of scheduling an Ocean-Atmosphere application used for climate prediction on the grid. An experiment is composed of several 1D-meshes of identical DAGs composed of parallel tasks. To obtain a good completion time, we divide groups of processors into sets each working on parallel tasks. The group sizes are chosen by computing the best makespan for several grouping...
This project proposes the design and development of the meteorological portlets on the GridSphere portal framework. The portlets support the simulations of climate data with the MM5 modeling system and the visualization of the results through Vis5D. Our main goal is to provide an easy way for the researchers to work with MM5 and to utilize the Thaigrid infrastructure, where large computational resources...
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