SimulationTools

1. About
2. Features
3. Documentation
4. Codes
5. Download
6. Support
7. Development

Features

Programmatic Interface to Simulation Data

• Read grid variables from simulations
• Use code-specific functions for a natural interface to each code's data
• Use Mathematica's algorithms and programming language to analyse your data
• Visualise data directly within Mathematica
• Extend SimulationTools to support new codes, output formats and simulation directory layouts

Hide low-level simulation details

• Transparently access data stored in multiple segments
• High-level view of data hides low-level technicalities

Enhanced List and Array Data Types

• Use new data types (DataRegion and DataTable) for lists and arrays with associated coordinates
• Use many list-based Mathematica operations (e.g. algebraic operations, numerical functions, interpolation, plotting, etc) on these types

Numerical Relativity and the Einstein Toolkit

• Functional interfaces to output data of codes in the Einstein Toolkit
• Extensive functionality for analysis of Numerical Relativity data
• Einstein Toolkit: Functional interface to many important codes from the Einstein Toolkit, including Multipole, PunctureTracker, AHFinderDirect and QuasiLocalMeasures.
• Gravitational waves: Read Psi4 data from simulations using the ReadPsi4 function. Convert between real/imaginary to amplitude/phase. Extrapolate waveforms to infinity. Convert Psi4 to strain.
• Binary black holes: Read black hole coordinate tracks, including their separation and phase. The SimulationOverview function provides an immediate overview of a binary black hole simulation (waveforms, puncture tracks, start and stop time of each segment, simulation speed, memory usage, etc).

Numerical Convergence

• Easily subtract grid data from simulations at different resolutions for computing rescaled errors for numerical convergence tests
• Easily interpolate if necessary
• Compute Richardson extrapolations
• Compute expected ratio of differences between resolutions
• Compute the estimated convergence rate from data at three resolutions

Use with the output of different codes

• SimulationTools has explicit support for the following codes: Cactus, Carpet, Simulation Factory, Einstein Toolkit. See the Codes page for more details.