Affiliations: The London Parallel Applications Centre, Queen Mary
and Westfield College; Mile End Road, London El 4NS, U.K.; E-mail:
[email protected] | Center for Novel Computing, University of Manchester,
Oxford Rd., Manchester M13 9PL, U.K., E-mail: {markb,griley}@cs.man.ac.uk | Department of Engineering, University of Manchester,
Oxford Rd., Manchester M13 9PL, U.K.; E-mail: [email protected]
Abstract: Flows in estuarial and coastal regions may be described by the
shallow-water equations. The processes of pollution transport, sediment
transport, and plume dispersion are driven by the underlying hydrodynamics.
Accurate resolution of these processes requires a three-dimensional formulation
with turbulence modeling, which is very demanding computationally. A numerical
scheme has been developed which is both stable and accurate – we show
that this scheme is also well suited to parallel processing, making the
solution of massive complex problems a practical computing possibility. We
describe the implementation of the numerical scheme on a Kendall Square
Research KSR-1 multiprocessor, and present experimental results which
demonstrate that a problem requiring 600,000 mesh points and 6,000 time steps
can be solved in under 8 hours using 32 processors.
