He is the Head of the Laboratory of the Parallel and Distributed Systems in the Computer and Automation Research Institute of the Hungarian Academy of Sciences. He received his MSc and university doctorate degrees from the Technical University of Budapest in 1976 and 1984, respectively. He received the kandidat degree from the Hungarian Academy in 1989. He habilitated at the University of Vienna in 1997 where he is a private professor. He received his professor title from the Hungarian President in 1999 and the Doctor of Academy degree (DSc) from the Hungarian Academy of Sciences in 2001. He is a part-time full professor at the University of Miskolc (Hungary), at the Etvs Lrnd Univ. of Science in Budapest (Hungary) and at the Cavendish School of Computer Science of the University of Westminster. He has been granted for 24 national and international research projects since 1992. He coordinated two European Tempus projects between 1994 and 2001. These projects were: "Introducing Parallel Processing into the Curriculum of Higher Educational Institutions of Technology in Hungary" (1994-97) and "Distributed and Network Computing in the Information Society " (1998-2001). He served as visiting scientist or professor several times at various universities of Austria, Australia, Canada, Germany, Japan, Spain and the UK. He has publish two books, two lecture notes and more than 120 scientific papers on parallel logic programming, parallel computer architectures, parallel software engineering, cluster and Grid computing tools. His textbook written with D. Sima and T. Fountain. Advanced Computer Architectures - A Design Space Approach. (Addison-Wesley, Harlow, p. 750, 1997) is currently used as primary textbook at more than 50 universities world wide and at more than twenty universities as recommended textbook. He was awarded for his outstanding scientific performance by the Computer and Automation Research Institute of the Hungarian Academy of Sciences in 1998 and 1999, and with the Kalmr Lszl award by the Hungarian Computer Society in 2000. He was the chair of the Performance Monitoring Working Group of the European Grid Forum and co-chair of the Performance Monitoring Working Group of the Global Grid Forum. He is a member of the Project Technical Board of the EU DataGrid project led by CERN and member of the Steering Committee of the recently funded EU GridLab project. He is the leader of the Grid Monitoring Work Package of the EU funded APART-2 project and member of the Board of Directors of the EU COST MetaChem project as well as of the Scientific Advisory Board of the Hungarian CERN Committee. He is the co-leader of the Hungarian Supercomputing Program and the coordinator of the Hungarian Supercomputing Grid project. He is the main leader of the Hungarian Grid efforts, representative of Hungary in the Central European Grid Consortium, and leader of the Hungarian Grid Competence Centre. He has been serving as Steering Committee member of the EuroPar Conference since 1995, PC member of Euromicro PDP workshop since 1993, of HPCN Europe since 1999, he was several times PC or organizing committee member of many other European and international conferences on parallel and distributed systems. He is a member of the editorial board of two journals: "Parallel and Distributed Computing Practices" and "Computers and Artificial Intelligence". Currently, he is co-editor-in-chief with Ian Foster of the Journal on Grid Computing published by Kluwer Academic Publishers.