KMI-R1: A Grid middleware package for K*Grid

Abstract

Grid computing aims for consolidated computing environment which provides coordinated resource sharing and problem solving in dynamic, multi-institutional virtual organizations. Upon this new computing paradigm, existing computation and data intensive problems can get great benefits in terms of temporal and economical cost of computing as well as user’s convenience in job submission. This paper addresses the Grid middleware package called KMI-R1 (K*Grid Middleware Initiative, Release 1) developed under the K*Grid project in Korea. KMI-R1 is the first release as the K*Grid middleware package which integrates the essential middleware components to build a Grid environment. The main components of KMI-R1 (see Fig. 1) are More- Dream Toolkit for providing core Grid services, KGridCA for helping to construct a certificate authority, AIService for providing Grid accounting information, and KMI-GridSphere for helping to implement Grid portals. MoreDream is a Grid middleware toolkit, which has three major Grid services: GRASP [1] for resource and job management, GAIS [2] for Grid information service, and MPICH-GX with a few noble extended features for MPI applications in Grid. MoreDream focuses on supporting computation-intensive applications in Grid. KGridCA is a software for constructing a certificate authority where users can get a certificate via any web browser. AIService is an OGSI-compliant service which gathers Grid accounting information from heterogeneous platforms and shows it through a web portal. Lastly,KMI-GridSphere is the extended one from GridSphere with some Grid service portlets such as GRASP job submission portlet and GAIS information browsing portlet. KMI-R1 has an initial purpose of helping scientists to harness all the advantages of Grid in their fingertips by providing the essential Grid services.