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Recommendations on performance of parallel DSMC algorithm in solving subsonic nanoflows

Roohi, E ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1016/j.apm.2011.08.036
  3. Publisher: 2012
  4. Abstract:
  5. We investigate the efficiency of a parallel direct simulation Monte Carlo (PDSMC) algorithm in solving the rarefied subsonic flow through a nanochannel. We use MPI library to transfer data between the processors. It is observed that PDSMC solver shows ideal speed up if sufficient workload is provided for each of processors. Additionally, this study shows that the computational time and speed up of the extended PDSMC solver do not depend (or slightly depend) on the number of cells. In contrary, increasing the total number of particles would result in a better efficiency of the PDSMC
  6. Keywords:
  7. Parallel computing ; Computational time ; Direct simulation Monte Carlo ; DSMC ; MPI ; Nano channels ; Nanoflows ; Algorithms ; Computer simulation ; Parallel architectures ; Subsonic flow ; Parallel processing systems
  8. Source: Applied Mathematical Modelling ; Volume 36, Issue 5 , May , 2012 , Pages 2314-2321 ; 0307904X (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0307904X11005361