Methods and algorithms Research in these areas involves invariably coupled nonlinear partial differential equations. Their solution requires intricate numerical methods, which must be adapted to the physical problem under investigation. Continuous fields are treated on grids, particular attention must be paid to the long range part of the electric interaction, which must considered separately. Although the motion of particles can be desribed by a few coordinates one needs many of these for a realistic description of a many-body system. In order to keep the computing effort on an acceptable level hierarchical algorithms are developed, in which slow processes of long spatial range run on large scales, while fast short range processes are treated on fine scales.
Full use is made of modern parallel computing techniques.
We employ therefore various computing methods and make use of our own and third party computing resources .