Advancing the Open Modeling Interface (OpenMI) for integrated water resources modeling. (October 2018)

• Record Type: Journal Article
• Authors: Buahin, Caleb A.; Horsburgh, Jeffery S.
• Is Part Of: Environmental modelling & software. Volume 108(2018)
• Page Start: 133
• Page End: 153
• Publication Date: 2018-10
• Subjects: Component-based modeling -- model coupling -- OpenMI -- Integrated water resources modeling -- High performance heterogeneous computing; Environmental monitoring -- Computer programs -- Periodicals; Ecology -- Computer simulation -- Periodicals; Digital computer simulation -- Periodicals; Computer software -- Periodicals; Environmental Monitoring -- Periodicals; Computer Simulation -- Periodicals; Environnement -- Surveillance -- Logiciels -- Périodiques; Écologie -- Simulation, Méthodes de -- Périodiques; Simulation par ordinateur -- Périodiques; Logiciels -- Périodiques; Computer software; Digital computer simulation; Ecology -- Computer simulation; Environmental monitoring -- Computer programs; Periodicals; Electronic journals; 363.70015118
• DOI: 10.1016/j.envsoft.2018.07.015
• Languages: English
• ISSNs: 1364-8152

Abstract

Abstract: The use of existing component-based modeling frameworks for integrated water resources modeling is currently hampered for some important use cases because they lack support for commonly used, topology-aware, spatiotemporal data structures. Additionally, existing frameworks are often accompanied by large software stacks with steep learning curves. Others lack specifications for deploying them on high performance, heterogeneous computing (HPC) infrastructure. This puts their use beyond the reach of many water resources modelers. In this paper, we describe new advances in component-based modeling using a framework called HydroCouple. This framework largely adopts the Open Modeling Interface (OpenMI) 2.0 interface definitions but demonstrates important advances for water resources modeling. HydroCouple explicitly defines standard and widely used geospatial data formats and provides interface definitions to support simulations on HPC infrastructure. In this paper, we illustrate how these advances can be used to develop efficient model components through a coupled urban stormwater modeling exercise. Highlights: A component-based modeling framework called HydroCouple is presented. HydroCouple is based on OpenMI but advances new pertinent interface definitions. HydroCouple provides support for widely used spatiotemporal data structures. It supports simulations on high performance heterogeneous computing resources. Advancements are demonstrated through a 1D/2D coupled hydraulic modeling application.