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There are many optimization tasks in accelerator physics: for example, fitting twiss parameters or maximizing dynamic aperture. Optimization algorithms can be generalized to encompass a larger class of problems not restricted to accelerator physics. Modern computational methods provide means to do that, allowing us to treat one-dimensional and… (More)
Coupling separately developed codes offers an attractive method for increasing the accuracy and fidelity of the computational models. Examples include the earth sciences and fusion integrated modeling. This paper describes the Framework Application for Core-Edge Transport Simulations (FACETS).
FACETS (Framework Application for Core-Edge Transport Simulations), now in its second year, has achieved its first coupled core-edge transport simulations. In the process, a number of accompanying accomplishments were achieved. These include a new parallel core component, a new wall component, improvements in edge and source components, and the framework… (More)
Simulations and experiments in the fusion and plasma physics community generate large datasets at remote sites. Visualization and analysis of these datasets are difficult because of the incompatibility among the various data formats adopted by simulation, experiments, and analysis tools, and the large sizes of analyzed data. Grids and Web services… (More)
The FACETS project aims to provide computational tools for whole device simulation of tokamak transport for use in fusion applications. The framework provides flexibility by allowing users to choose the best model for a given physics target. Our goals are to develop accurate transport solvers using neoclassical and turbulent fluxes with varying degree of… (More)
The paper presents a prototype of the NSLS-II high level application environment including key middle layer servers, such as Machine, Online Model and Virtual Accelerator. The proposed environment is developed and evaluated on top of EPICS-DDS, an open source implementation of the DDS standard interface based on the EPICS Channel Access protocol.
Visualization is increasingly important for understanding the large 3D data sets produced by high-performance computing. Such data sets are easily multiple gigabytes per slice. Transferring such files is problematic in terms of data transfer speed and also in data storage. In this situation, remote visualization is needed. Our application FarSight addresses… (More)