Large-scale FE modelling in geomechanics: a case study in parallelization
The paper develops the Displacement Decomposition technique used already in  for parallelization of the Preconditioned Conjugate Gradient method. This time, the solution of very large problems is tackled. We present our experience with (PVM-)parallel solution of a huge finite element model arising from geomechanical practice on usual hardware and describe various facets of the optimizing process, leading to a tenfold improvement of the solution time. Special effects of parallelizing I/O-constrained programs are also addressed.
KeywordsPreconditioned Conjugate Gradient Nite Element Master Process Parallel Solver Incomplete Factorization
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