OpenMDAO

OpenMDAO
Developer(s)	NASA Glenn Research Center
Stable release	3.2.0
Operating system	Cross-platform
Type	Technical computing
License	Apache License 2.0
Website	openmdao.org

OpenMDAO is an open-source high-performance computing platform for systems analysis and multidisciplinary optimization written in the Python programming language.

The OpenMDAO project is primarily focused on supporting gradient based optimization with analytic derivatives to allow you to explore large design spaces with hundreds or thousands of design variables, but the framework also has a number of parallel computing features that can work with gradient-free optimization, mixed-integer nonlinear programming, and traditional design space exploration.

The OpenMDAO framework is designed to aid in linking together separate pieces of software for the purpose of combined analyses. It allows users to combine analysis tools (or design codes) from multiple disciplines, at multiple levels of fidelity, and to manage the interaction between them. OpenMDAO is specifically designed to manage the dataflow (the actual data) and the workflow (what code is run when) in conjunction with optimization algorithms and other advanced solution techniques.[1]

The development of OpenMDAO is led out of the NASA Glenn Research Center.

Features

Library of built-in solvers and optimizers
Tools for metamodeling
Data recording capabilities
Support for analytic derivatives
Support for high-performance computer clusters and distributed computing
Extensible plugin library

Applications

NASA’s motivation in supporting the OpenMDAO project stems from the demands of unconventional aircraft concepts like Turbo-Electric distributed propulsion. Although NASA’s focus is on analyzing aerospace applications, the framework itself is general and is not specific to any discipline.

Framework structure

OpenMDAO is designed to separate the flow of information (dataflow) from the process in which analyses are executed (workflow). It does that by using four specific constructs: Component, Assembly, Driver, and Workflow.

The construction of system models begins with wrapping (or writing from scratch) various analysis codes as Components. A group of components is linked together inside an Assembly, specifying the dataflow between them. Once the dataflow is in place, one can select specific Drivers (optimizers, solvers, design of experiments, etc.) and set up a Workflow to determine exactly how the problem should be solved.

OpenMDAO also includes a web-browser-based graphical user interface (GUI) for visual construction, execution, and optimization of models.

gollark: I mean that you can get more "variables" by using pronouns (if/he/she/they) because they have genders.

gollark: I don't mean distinguishing words which are the same except in gender, that's stupid.

gollark: You know what would be cool? Dynamically generate new API versions for no reason.

gollark: Well, yes, that's basically what I'm talking about - you can use genders to reference three or so at once.

gollark: Or to have a convenient short way to say "the noun I said 3rd most recently" or somethin.

External links

Official website

Notes

J. S. Gray, J. T. Hwang, J. R. R. A. Martins, K. T. Moore, and B. A. Naylor. OpenMDAO: An open- source framework for multidisciplinary design, analysis, and optimization. Structural and Multidisciplinary Optimization, 2019. doi:10.1007/s00158-019-02211-z.

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[1] J. S. Gray, J. T. Hwang, J. R. R. A. Martins, K. T. Moore, and B. A. Naylor. OpenMDAO: An open- source framework for multidisciplinary design, analysis, and optimization. Structural and Multidisciplinary Optimization, 2019. doi:10.1007/s00158-019-02211-z.