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The following topics are dealt with: message passing interface; peer-to-peer computing; information services; resource discovery; semantic Web; Web services; programming models; programming environments; performance evaluation; security; data grid and management; middleware; resource management; and scheduling
Grid computing is becoming more and more attractive for coordinating large-scale heterogeneous resource sharing and problem solving. From the viewpoint of decentralization and interoperability, we add agent layer based on ChinaGrid support platform (CGSP) system services. By describing these agent technologies in detail, we prove that agents can be implemented in WSRF specification as a Web service...
Grid computing has been playing key roles in the area of scientific computing. The two main computing grids in China are CNGrid (China National Grid) and ChinaGrid. This paper introduces these two main grids and their corresponding key technique, the architecture of grid middleware of bioinformatics applications, the bioinformatics service of these two grids, and then compares the two main grids and...
This paper proposes a middleware framework that supports mobile grid services in a secure manner. Mobile grid services, the extension of the original static grid services, are characterized by the ability of moving from nodes to nodes during execution. The framework is constructed by combining an existing mobile agent system (JADE) and a generic grid system toolkit (Globus). The Mobile Grid Services...
Facing the increasing demand for data sharing in distributed environments, computer grids became an attractive technology to manage extended data sets, providing efficient access, publishing, and data discovery. In this paper, we present the structure and implementation of MagCat multi-agent system, that provides a service for publishing and discovery data in grids through metadata. This service is...
With current grid middleware, it is difficult to deploy distributed supercomputing applications that run concurrently on multiple resources. As current grid middleware systems have problems with co-allocation (scheduling across multiple grid sites), fault-tolerance and are difficult to set-up and maintain, we consider an alternative: peer-to-peer (P2P) supercomputing. P2P supercomputing middleware...
This paper presents the integrated cluster environment - ICE, which aims to provide an efficient and easy way to interact with several clusters. Generally, when users and clusters administrators have access to several clusters they have to deal with different kind of tools in each cluster. For example: different job schedulers, resource monitoring and administrative configuration issues. Sometimes...
Job monitoring in Grid systems presents an important challenge due to Grid environments are volatile, heterogeneous, not reliable and are managed by different middlewares and monitoring tools. We present the infrastructure that we have designed and implemented in the HPC-Europa European project that allows uniform access to job monitoring information from different virtual organizations. The presented...
It is the goal of this paper to present the motivation for the development and the implementation of a computational portal aiming at processing generic HPC applications. The requirements of such a portal lead to it evolvement to the utilization of Globus, Liferay as the middleware and portal framework. The portal aims to become a generic computing intensive platform, from user management, through...
This practices and experience paper describes the coordination, design, implementation, availability, and performance of the Pacific Rim Applications and Grid Middleware Assembly (PRAGMA) grid testbed. Applications in high-energy physics, genome annotation, quantum computational chemistry, wildfire simulation, and protein sequence alignment have driven the middleware requirements, and the testbed...
The inevitable move from a single large scale server to a distributed grid environment is beginning to be realized across international grid test-bed like Pacific Rim Applications and Grid Middleware Assembly (PRAGMA). Although jobs submitted to a single large server have been widely analyzed, job characteristics in a grid environment are different as we found in our analysis of jobs submitted in...
Grid infrastructures have provided wide integrated use of resources. DotGrid intends to introduce required Grid services and toolkits that are implemented as a layer wrapped over the existing operating systems. Our DotGrid has been developed based on Microsoft .NET in Windows and MONO .NET in Linux and UNIX. Using DotGrid APIs, grid middlewares and applications can be implemented easily. We evaluated...
This paper describes the integration of the high level architecture (HLA), an IEEE standard for distributed interactive simulation, with a scientific software package (Scilab) and its use for collaborative simulation development. This work is an on-going work that aims to facilitate the interoperability and reusability for Scilab simulation models. Integrating HLA with the engineering and scientific...
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