Parallelization of the TRIGRS model for rainfall-induced landslides using the message passing interface |
| |
| Affiliation: | 1. Department of Earth and Environmental Sciences, University of Pavia, Via Ferrata 1, 27100 Pavia Italy;2. Department of Civil and Environmental Engineering and Architecture, University of Parma, Viale G.P. Usberti 181/A, 43100 Parma Italy;3. Department of Civil & Environmental Engineering, Colorado School of Mines, 1500 Illinois Street, 80401 Golden CO, USA;4. Department of Agricultural Sciences, University of Bologna, Viale Fanin 44, 40127 Bologna Italy;1. Department of Earth Sciences, “Sapienza” University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy;2. Department of Civil-Environmental Engineering and Architecture, University of Parma, Parco Area delle Scienze, 181/A, 43100 Parma, Italy |
| |
| Abstract: | We describe a parallel implementation of TRIGRS, the Transient Rainfall Infiltration and Grid-Based Regional Slope-Stability Model for the timing and distribution of rainfall-induced shallow landslides. We have parallelized the four time-demanding execution modes of TRIGRS, namely both the saturated and unsaturated model with finite and infinite soil depth options, within the Message Passing Interface framework. In addition to new features of the code, we outline details of the parallel implementation and show the performance gain with respect to the serial code. Results are obtained both on commercial hardware and on a high-performance multi-node machine, showing the different limits of applicability of the new code. We also discuss the implications for the application of the model on large-scale areas and as a tool for real-time landslide hazard monitoring. |
| |
| Keywords: | TRIGRS Shallow landslides MPI Slope stability |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
