This application can be disconnected from the HPC system and reconnected at any time without slowing down the computations on the work ow submitted. Additionally, the ability to download any data component or view images interactively is provided. The interface requests the user to enter a minimal set of parameters while other variables essential to computations are generated on the y and provides status updates on work ow computations. We present our custom application that walks the user through a work flow to include: target selection, configuration of the target, radar phase history simulation, and finally SAR image generation. Some computations are so complicated, taking many millions of HPC hours, that only a few subject matter experts are able to generate information efficiently. 22 We describe a complex work ow application which generates millions of images in parallel on an HPC system via web interfaces using ipywidgets in Jupyter Notebooks and the Interface Launcher (iLauncher). This work builds on another effort described in Application of Jupyter Notebook interfaces and iLauncher to deep learning work ows on HPC systems.
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