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VLSV File Format

Table of Contents

• Introduction
• Data and File Format
• Coordinate Systems
• HOWTO: Write a Multi-domain Mesh
• HOWTO: Write Multi-domain variables

Introduction

VLSV file format was created for writing domain-decomposed meshes, and variables defined on their zones, efficiently in parallel using message passing interface (MPI). Here is a list of features:

• Data written in parallel using collective MPI calls
• Parallel visualization with VisIt
• Scalability tested up to tens of millions of zones per mesh
• Multiple meshes per file
• Stretched Cartesian, Cylindrical, and Spherical coordinate systems
• Arbitrary coordinate scaling for visualization purposes (for example, from meters to Earth radii)
• User-defined axis labels and units