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Providing fast, reliable and transparent access to data to all users within a community is one of the the most crucial functions of data management in a Grid environment. User communities are typically large and highly geographically distributed. The volume of data that they wish to access is of the order of petabytes and may also be distributed. It is(More)
Within the European DataGrid project, Work Package 2 has designed and implemented a set of integrated replica management services for use by data intensive scientific applications. These services, based on the web services model, enable movement and replication of data at high speed from one geographical site to another, management of distributed replicated(More)
M. Riedel∗,†, E. Laure, Th. Soddemann, L. Field, J. P. Navarro, J. Casey,M. Litmaath, J. Ph. Baud, B. Koblitz, C. Catlett, D. Skow,C. Zheng, P. M. Papadopoulos,M. Katz, N. Sharma, O. Smirnova, B. Kónya, P. Arzberger, F. Würthwein, A. S. Rana, T. Martin,M. Wan,V. Welch, T. Rimovsky, S. Newhouse, A. Vanni, Y. Tanaka, Y. Tanimura, T. Ikegami, D. Abramson, C.(More)
In the first phase of the EU DataGrid (EDG) project, a Data Management System has been implemented and provided for deployment. The components of the current EDG Testbed are: a prototype of a Replica Manager Service built around the basic services provided by Globus, a centralised Replica Catalogue to store information about physical locations of files, and(More)
The past few years have dramatically changed the view of high performance applications and computing. While traditionally such applications have been targeted towards dedicated parallel machines, we see the emerging trend of building \meta-applications" composed of several modules that exploit heterogeneous platforms and employ hybrid forms of parallelism.(More)
The past few years have dramatically changed the view of high performance applications and computing. While traditionally applications have been targeted towards dedicated parallel machines, we see the emerging trend of building \meta-applications" composed of several modules that exploit heterogeneous platforms employing hybrid forms of parallelism. In(More)
Grid computing has been the subject of many large national and international IT projects. However, not all goals of these projects have been achieved. In particular, the number of users lags behind the initial forecasts laid out by proponents of grid technologies. This underachievement may have led to claims that the grid concept as awhole is on its way to(More)