A PARALLEL FINITE ELEMENT CODE FOR NONLINEAR LEAKY AQUIFER SYSTEMS

1999 ◽  
Vol 13 (4) ◽  
pp. 345-361
Author(s):  
GIORGIO PINP ◽  
FLAVIO SARTORETTO
Keyword(s):  
Finite Element ◽  
Finite Element Code ◽  
Aquifer Systems ◽  
Parallel Finite Element ◽  
Leaky Aquifer

Large Scale Elasto-Plastic Analysis Using Domain Decomposition Method Optimized for Multi-Core CPU Architecture

2011 ◽  
Vol 462-463 ◽  
pp. 605-610 ◽  
Author(s):  
Hiroshi Kawai ◽  
Masao Ogino ◽  
Ryuji Shioya ◽  
Shinobu Yoshimura
Keyword(s):  
Finite Element ◽  
Domain Decomposition ◽  
Decomposition Method ◽  
Large Scale ◽  
Seismic Analysis ◽  
Domain Decomposition Method ◽  
Computational Time ◽  
Finite Element Code ◽  
Direct Solver ◽  
Parallel Finite Element

To solve a large scale elasto-plastic dynamics analysis of a complicated structure, such as a seismic analysis of a nuclear power plant and a skyscraper, a new implementation strategy for a parallel finite element code, suitable on a parallel supercomputer with modern multi-core / many core scalar CPUs, has been required. In this work, we propose a new design and programming style to optimize the performance of a parallel finite element code based on the domain-decomposition method (DDM) on multi-core CPUs, considering their cache hierarchy. Instead of a traditional, memory access-intensive approach, DS (Direct solver-based matrix Storage), two new matrix storage-free approaches, DSF (Direct solver-based matrix Storage-Free) and ISF (Iterative solver-based matrix Storage-Free), are proposed. Our new DSF/ISF-based DDM solver is not only more efficient in memory usage but also comparable in computational time against existing DS-based DDM solvers on multi-core CPU architectures.

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