FSML-Fusion Simulation Markup Language for Interoperability of Data and Analysis Tools

76055S Visualization and analysis of data generated by simulations in the fusion and plasma physics communities are difficult because of the incompatibility among the multiple data formats and multiple data analysis tools. This incompatibility also makes comparison of the data difficult and the inter-working of codes problematic. Therefore, systems are needed to facilitate data interchange and the interoperability of analysis tools. This project will address these problems by developing the Fusion Simulation Markup Language (FSML), which is based on the extensible Markup Language (XML). The system will include: (1) metadata markups and schemas for describing magnetohydrodynamic (MHD) simulation data; (2) uniform C++ API for accessing MHD HDF5 data on different meshes, and interpolating the data without converting it; and (3) comprehensive three-dimensional (3D) environments for visualization of MHD data. Phase I developed a prototype FSML schema for several fundamental variables of two MHD codes (NIMROD and M3D), implemented a C++ library for parsing FSML and accessing the native HDF5 data, and wrapped this library into AVS/Express modules for data visualization. Phase II will generalize the FSML schema to include all fundamental MHD variables and other simulation metadata, facilitating data analysis and visualization, and develop comprehensive modules for 3D visualization using AVS/Express and SciRun. Then, the FSML will be augmented with a set of tools for data interpolation and for accessing data on structured and unstructured meshes through a uniform API. Commercial Applications and Other Benefits as described by the awardee: The set of tools should enhance data interchange and the interoperability of analysis tools for the fusion community. It should be of immediate use to the Fusion Simulation Prototype Centers. The interpolators should be of use to multiple scientific applications, such as computational plasma physics and astrophysics, and combustion modeling.