Domain decomposition: parallel multilevel methods for elliptic partial differential equations
Domain decomposition: parallel multilevel methods for elliptic partial differential equations
Optimizing Irregular HPF Applications using Halos
Proceedings of the 11 IPPS/SPDP'99 Workshops Held in Conjunction with the 13th International Parallel Processing Symposium and 10th Symposium on Parallel and Distributed Processing
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3D simulation in electrical engineering is based on recent research work (Whitney's elements, auto-gauged formulations, discretization of the source terms) and it results in complex and irregular codes. Generally, explicit message passing is used to parallelize this kind of applications requiring tedious and error prone low level coding of complex communication schedules to deal with irregularity. In this paper, we focus on a high level approach using the data-parallel language High Performance Fortran. It allows both an easier maintenance and a higher software productivity for electrical engineers. Though HPF was initially conceived for regular applications, it can be successfully used for irregular applications when using an unstructured communication library that deals with indirect data accesses.