Name
Title | ||
|---|---|---|
A Hybrid Decomposition Parallel Algorithm for Multi-scale Simulation of Viscoelastic Fluids |
Abstract | ||
|---|---|---|
The method of Brownian configuration fields (BCF) is a promising multi-scale approach for the simulationof viscoelastic fluids, however, it is a computationally expensive method, which restricts its application in complex scenarios. Therefore, it is of great importance to optimize the parallel implementation in order to improve computational efficiency. In this paper we propose a hybrid decomposition parallel algorithm named: MCDPar, whichenables the simulation problem to bedecomposed simultaneously over mesh cells andthe Brownian configuration fields. Compution processes are split into multiple groups and Brownian configuration fields are equally associated with these groups. Meanwhile, within each group the processes are concurrently executed based on the traditional mesh decomposition approach. Finally we implemented the MCDPar algorithm in a micro-macro numerical solver based on OpenFOAM. Experimental results show that the micro-macro simulation time of viscoelastic fluids issignificantly reduced with improved scalability and parallel efficiency. In the test case with N
<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">f</sub>
= 2000 and N
<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">cell</sub>
= 262144, the speedup of the MCDParis up to 9.23x with a 7.5x increase in number of cores compared to the original parallel algorithm. |
Year | DOI | Venue |
|---|---|---|
2016 | 10.1109/IPDPS.2016.21 | 2016 IEEE International Parallel and Distributed Processing Symposium (IPDPS) |
Keywords | Field | DocType |
Hybrid decomposition,Brownian configuration fields,Parallel algorithm,Multi-scale simulation,Viscoelastic fluids | Viscoelasticity,Numerical models,Parallel algorithm,Computer science,Parallel computing,Solver,Brownian motion,Decomposition,Speedup,Scalability | Conference |
ISSN | ISBN | Citations |
1530-2075 | 978-1-5090-2141-3 | 0 |
PageRank | References | Authors |
0.34 | 1 | 7 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Xiaowei Guo | 1 | 8 | 4.60 |
| Xinhai Xu | 2 | 22 | 7.73 |
| Qian Wang | 3 | 4 | 1.46 |
| Hao Li | 4 | 0 | 0.34 |
| Xiaoguang Ren | 5 | 1 | 2.08 |
| Liyang Xu | 6 | 108 | 10.10 |
| Xuejun Yang | 7 | 678 | 73.26 |