The papers in this volume were presented at the 4th International Conference on
Large-Scale Scientific Computations ICLSSC 2003. It was held in Sozopol,
Bulgaria, June 48, 2003. The conference was organized and sponsored by the
Central Laboratory for Parallel Processing at the Bulgarian Academy of Sciences.
Support was also provided from the Center of Excellence BIS 21 (funded by
the European Commission), SIAM and GAMM. A co-organizer of this
traditional scientific meeting was the Division of Numerical Analysis and Statistics
of the University of Rousse.