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Python's Role in VisIt

Cyrus Harrison
Lawrence Livermore National Laboratory

Harinarayan Krishnan
Lawrence Berkeley National Laboratory


VisIt is an open source, turnkey application for scientific data analysis and visualization that runs on a wide variety of platforms from desktops to petascale class supercomputers. VisIt's core software infrastructure is written in C++, however Python plays a vital role in enabling custom workflows. Recent work has extended Python's use in VisIt beyond scripting, enabling custom Python UIs and Python filters for low-level data manipulation. The ultimate goal of this work is to evolve Python into a true peer to our core C++ plugin infrastructure. This paper provides an overview of Python’s role in VisIt with a focus on use cases of scripted rendering, data analysis, and custom application development.


visualization, hpc, python



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