Domain decomposition: parallel multilevel methods for elliptic partial differential equations
Domain decomposition: parallel multilevel methods for elliptic partial differential equations
MPI versus MPI+OpenMP on IBM SP for the NAS benchmarks
Proceedings of the 2000 ACM/IEEE conference on Supercomputing
GeoFEM: High Performance Parallel FEM for Solid Earth
HPCN Europe '99 Proceedings of the 7th International Conference on High-Performance Computing and Networking
Iterative Methods for Sparse Linear Systems
Iterative Methods for Sparse Linear Systems
Applied Numerical Mathematics - 6th IMACS International symposium on iterative methods in scientific computing
Parallel finite element analysis platform for the earth simulator: GeoFEM
ICCS'03 Proceedings of the 2003 international conference on Computational science: PartIII
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An efficient parallel iterative method for unstructured grids developed by the authors for SMP cluster architectures on the GeoFEM platform is presented. The method is based on a 3-level hybrid parallel programming model, including message passing for inter-SMP node communication, loop directives by OpenMP for intra-SMP node parallelization and vectorization for each processing element (PE). Simple 3D elastic linear problems with more than 8脳108 DOF have been solved by 3脳3 block ICCG(0) with additive Schwarz domain decomposition and PDJDS/CM-RCM reordering on 128 SMP nodes of Hitachi SR8000/MPP parallel computer, achieving performance of 335.2 GFLOPS. The PDJDS/CM-RCM reordering method provides excellent vector and parallel performance in SMP nodes.