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Simulation Wiki Tutorial - Launching OpenSees

Tutorial – Launching OpenSees

You can use the tools available on the NEEShub to launch and run OpenSees just as you would on your local computer. There are two tools available for launching and running OpenSees – the OpenSees Laboratory tool and the Workspace. This tutorial will show you how to launch and run OpenSees for both tools.

OpenSees Laboratory

Launching the OpenSees Laboratory Tool

The first step in running OpenSees through the OpenSees Laboratory tool on the NEEShub to locate and launch the tool. You can access the OpenSees Laboratory tool page through the Tools & Resources > Tools menu here

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or through the Simulation > Programs menu here.


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On the OpenSees Laboratory tool page, click on the Launch Tool button to start the OpenSees Laboratory tool.


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Launching OpenSees

Within the OpenSees Laboratory tool use the dropdown menu to select the OpenSees Interpreter option.

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This will launch OpenSees as it would on your local computer.


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You can use the dir command to locate your source file. If you need help uploading your source file, please reference this tutorial.


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Any action that you could normally perform in OpenSees on your PC can be performed through the OpenSees Interpreter. For example, you can use the command eigen to get eigenvalues of the model, and use the proper operations (valid TCL operations) to convert the eigenvalues into natural frequencies.


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The Workspace

Launching the Workspace

The first step in running OpenSees through the Workspace on the NEEShub to locate and launch the tool. You can access the Workspace tool page through the Tools & Resources > Tools menu here.

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From the Workspace tool page, you will launch the tool by clicking on the Launch Tool button.

The Workspace is not enabled by default for all users. Please submit a support ticket to request access to the Workspace if you cannot launch it.


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Most of the time, when using the Workspace, you will run OpenSees using either the batchsubmit command (reference this tutorial for more information) or a command line that looks something like this (reference this tutorial for more information):

opensees sourcefilename.tcl

This command will launch OpenSees, run your simulation, and then close OpenSees when the simulation completes. If you actually need to launch OpenSees itself (perhaps you want to enter your source code line by line or you need to perform other TCL operations such as the ones shown in the OpenSees Laboratory example), type the following into the workspace:

opensees

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Any action that you could normally perform in OpenSees on your PC can now be performed through OpenSees within the Workspace.

When you are done in OpenSees and wish to exit, type the exit command:

exit

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