Projects per year
Abstract
This paper describes the implementation and benchmarking of a parallel version of the LISFLOOD-FP
hydraulic model based on the OpenMP Application Programming Interface. The motivation behind the
study was that reducing model run time through parallelisation would increase the utility of such models
by expanding the domains over which they can be practically implemented, allowing previously inaccessible
scientific questions to be addressed. Parallel speedup was calculated for 13 models distributed
over seven study sites and implemented on one, two, four and in selected cases eight processor cores.
The models represent a range of previous applications from large area, coarse resolution models of the
Amazon, to fine resolution models of urban areas, to orders of magnitude smaller models of rural
floodplains. Parallel speedups were greater for larger model domains, especially for models with over
0.2–0.4 million cells where parallel efficiencies of up to 0.75 on four and eight cores were achieved. A key
advantage of using OpenMP and an explicit rather than implicit model was the ease of implementation
and minimal code changes required to run simulations in parallel.
Translated title of the contribution | Parallelisation of storage cell flood models using OpenMP |
---|---|
Original language | English |
Pages (from-to) | 872 - 877 |
Number of pages | 6 |
Journal | Environmental Modelling and Software |
Volume | 24 |
DOIs | |
Publication status | Published - Jul 2009 |
Bibliographical note
Publisher: ElsevierFingerprint
Dive into the research topics of 'Parallelisation of storage cell flood models using OpenMP'. Together they form a unique fingerprint.Projects
- 1 Finished
-
FLOOD RISK MANAGEMENT CONSORTIUM (FRNRC) PHASE 2
Bates, P. D. (Principal Investigator)
1/08/08 → 1/04/12
Project: Research
Equipment
-
HPC (High Performance Computing) and HTC (High Throughput Computing) Facilities
Alam, S. R. (Manager), Williams, D. A. G. (Manager), Eccleston, P. E. (Manager) & Greene, D. (Manager)
Facility/equipment: Facility