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Smooth particle applied mechanics implemented in the clustered machines with PVM

Smooth particle applied mechanics (SPAM) solves the continuum equations for the time development of coordinates, velocities, and specific energies p,v,e of a moving grid of "smoothed particles". By eliminating the ordered grid, the smooth particle method resembles the method used in atomistic and molecular dynamics. Consequently, there are no usual grid-based distortional instabilities which plague simulation with large deformation. Their implementation on parallel computers is also straightforward. Complex hydrodynamic problems-shock propagation, Richtmyer-Meshkov instability, and Rayleigh-Benard instability are solved with smooth particle applied mechanics using clustered workstations and Cray C90 with a portable software system of parallel virtual machine (PVM). Multiple informations and multiple data (MIMD) and single program and multiple data (SPMD) methods provide good algorithms for SPAM.