In this approach a user creates a single problem description, called the “VERAIn†common input file, to define and setup the desired coupled-code reactor core simulation. This study describes an approach for coupled-code multiphysics reactor core simulations that is being developed by the Virtual Environment for Reactor Applications (VERA) project in the Consortium for Advanced Simulation of Light-Water Reactors (CASL). Schmidt, Rodney Belcourt, Kenneth Hooper, Russell. 2.The System Integration Manager (SIM): The SIM package provides constructs and mechanisms for orchestrating composite systems of multiply integrated pieces.« lessĪn approach for coupled-code multiphysics core simulations from a common input COM also provides the inter-component function call mechanism. In particular, the ACT has the following major components: 1.The Component Object Manager (COM): The COM package provides encapsulation of user applications, and their data.
The ACT itself is built up from the components described in the technical approach. The current development focus is the ACT, which is (will be) the substrate for MPACT.
There are two major pieces to the consortium implementation, the Application Component Toolkit (ACT), and the Multiphysics Application Coupling Toolkit (MPACT).
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IllinoisRocstar is now licensing these new developments as free, open source, in hopes to help improve their own and others' access to infrastructure which can be readily utilized in developing coupled or composite software systems more » with particular attention to more rapid production and utilization of multiphysics applications in the HPC environment. Development of this infrastructure originated at the University of Illinois DOE ASCI Center for Simulation of Advanced Rockets (CSAR) to support the center's massively parallel multiphysics simulation application, Rocstar, and has continued at IllinoisRocstar, a small company formed near the end of the University-based program. This particular consortium implementation of the software integration infrastructure will, in large part, refactor portions of the Rocstar multiphysics infrastructure. Multiphysics Application Coupling Toolkit We also illustrate the flexibility of the framework by providing examples of different types of simulations that utilize various features of the IPS.« less We describe the requirements and design of the framework, and how they were implemented in the Python language. Simulations can take advantage of multiple levels ofmore » parallelism supported in the IPS, and can be controlled by a high-level ``driver'' component, or by other coordination mechanisms, such as an asynchronous event service. The IPS provides users with a simple component architecture into which a wide range of existing plasma physics codes can be inserted as components.
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This paper presents the Integrated Plasma Simulator (IPS), a framework designed for loosely coupled simulations of fusion plasmas. In many domains, however, there has been very limited experience with simulations of this sort, therefore research in coupled multiphysics often requires computational frameworks with significant flexibility to respond to the changing directions of the physics and mathematics.
High-fidelity coupled multiphysics simulations are an increasingly important aspect of computational science. The Integrated Plasma Simulator: A Flexible Python Framework for Coupled Multiphysics Simulationįoley, Samantha S Elwasif, Wael R Bernholdt, David E
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