Engineering topics

Magerlein, John

Publications and source records attributed to Magerlein, John.

2 records

DOE OSTI2013

Multiphysics Simulations: Challenges and Opportunities

We consider multiphysics applications from algorithmic and architectural perspectives, where ‘‘algorithmic’’ includes both mathematical analysis and computational complexity, and ‘‘architectural’’ includes both software and hardware environments. Many diverse multiphysics applications can be reduced, en route to their computational simulation, to a common algebraic coupling paradigm. Mathematical analysis of multiphysics coupling in this form is not always practical for realistic applications, but model problems representative of applications discussed herein can provide insight. A variety of software frameworks for multiphysics applications have been constructed and refined within disciplinary communities and executed on leading-edge computer systems. We examine several of these, expose some commonalities among them, and attempt to extrapolate best practices to future systems. From our study, we summarize challenges and forecast opportunities.

Keyes, David↗

DOE OSTI2010

Advanced Computing and Simulation

Designing and developing a framework for nuclear energy simulation is challenging because of the technical complexity of the task and the wide range of desired capabilities and possible approaches. During the course of this project, the NEAMS CT team has systematically studied a range of framework requirements and capabilities as documented in several reports. This work focused primarily on the SHARP and Salome frameworks. We are now carrying out a more detailed survey of additional framework parts and requirements. Based on this work, we expect to make a specific framework plan by about the end of 2010 and then to expand our effort to develop and integrate the various parts of such a framework. In addition, EDF and IBM have worked to optimize Code_Saturne for Blue Gene/P. We have significantly improved the performance of the code, introduced OpenMP parallelization which will be important for future HPC architectures with more cores, and solved a problem with over 1 billion mesh cells.

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS↗