The CoreGRID Network of Excellence (NoE) project began in September 2004. Two months later, in November 2004, the first CoreGRID Integra tion Workshop was held within the framework of the prestigious international Dagstuhl seminars. CoreGRID aims at strengthening and advancing long-term research, knowledge transfer and integration in the area of Grid and Peer-to- Peer technologies. CoreGRID is a Network of Excellence - a new type of project within the European 6th Framework Programme, to ensure progressive evolution and durable integration of the European Grid research community. To achieve this objective, CoreGRID brings together a critical mass of we- established researchers and doctoral students from forty-two institutions that have constructed an ambitious joint programme of activities. Although excellence is a goal to which CoreGRID is committed, durable integration is our main concern. It means that CoreGRID has to carry out activ ities to improve the effectiveness of European research in Grid by coordinating and adapting the participants' activities in Grid research, to share resources such as Grid testbeds, to encourage exchange of research staff and students, and to ensure close collaboration and wide dissemination of its results to the international community. Organising CoreGRID Integration Workshops is one of the activities that aims at identifying and promoting durable collaboration between partners involved in the network."

Euro-Par Conference Series Euro-Par is an annual series of international conferences dedicated to the p- motion and advancement of all aspectsof parallelcomputing. The major themes can be divided into the broad categories of hardware, software, algorithms and applications for parallel computing. The objective of Euro-Par is to provide a forum within which to promote the development of parallel computing both as an industrial technique and an academic discipline, extending the frontier of both the state of the art and the state of the practice. This is particularly - portant at a time when parallel computing is undergoing strong and sustained development and experiencing real industrial take-up. The main audience for, and participants at, Euro-Par are seen as researchers in academic departments, government laboratories and industrial organizations. Euro-Par's objective is to be the primary choice of such professionals for the presentation of new - sults in their speci?c areas. Euro-Par also targets applications demonstrating the e?ectiveness of parallelism. This year's Euro-Par conference was the tenth in the conference series. The previous Euro-Par conferences took place in Sto- holm, Lyon, Passau, Southampton, Toulouse, Munich, Manchester, Paderborn and Klagenfurt. Next year the conference will take place in Lisbon. Euro-Par has a permanent Web site hosting the aims, the organization structure details as well as all the conference history: http: //www. europar. org.

Themessagepassingparadigmisconsideredthemoste?ectivewaytodevelop- ?cient parallel applications. PVM (Parallel Virtual Machine) and MPI (Message Passing Interface) are the most frequently used tools for programming message passing applications. This volume includes the selected contributions presented at the 10th - ropean PVM/MPI Users' Group Meeting (Euro PVM/MPI 2003), which was held in Venice, Italy, September 29-October 2, 2003. The conference was jointly organized by the Department of Computer Science of the Ca' Foscari University of Venice, Italy and the Information Science and Technologies Institute of the National Research Council (ISTI-CNR), Pisa, Italy. TheconferencewaspreviouslyheldinLinz, Austria(2002), Santorini, Greece (2001), Balatonfured, ] Hungary (2000), Barcelona, Spain (1999), Liverpool, UK (1998), and Krakow, Poland (1997). The ?rst three conferences were devoted to PVM and were held in Munich, Germany (1996), Lyon, France (1995), and Rome, Italy (1994). The conference has become a forum for users and developers of PVM, MPI, and other message passing environments. Interactions between these groups has proved to be very useful for developing new ideas in parallel computing, and for applying some of those already existent to new practical ?elds. The main topics of the meeting were evaluation and performance of PVM and MPI, ext- sions, implementations and improvements of PVM and MPI, parallel algorithms using the message passing paradigm, and parallel applications in science and engineering. In addition, the topics of the conference were extended to include Grid computing, in order to re?ect the importance of this area for the hi- performance computing community."

The CoreGRID Network of Excellence (NoE) project began in September 2004. Two months later, in November 2004, the first CoreGRID Integra tion Workshop was held within the framework of the prestigious international Dagstuhl seminars. CoreGRID aims at strengthening and advancing long-term research, knowledge transfer and integration in the area of Grid and Peer-to- Peer technologies. CoreGRID is a Network of Excellence - a new type of project within the European 6th Framework Programme, to ensure progressive evolution and durable integration of the European Grid research community. To achieve this objective, CoreGRID brings together a critical mass of we- established researchers and doctoral students from forty-two institutions that have constructed an ambitious joint programme of activities. Although excellence is a goal to which CoreGRID is committed, durable integration is our main concern. It means that CoreGRID has to carry out activ ities to improve the effectiveness of European research in Grid by coordinating and adapting the participants' activities in Grid research, to share resources such as Grid testbeds, to encourage exchange of research staff and students, and to ensure close collaboration and wide dissemination of its results to the international community. Organising CoreGRID Integration Workshops is one of the activities that aims at identifying and promoting durable collaboration between partners involved in the network."