We have made public an Amazon EC2 machine image that can be used to run Sequential and Parallel jobs on the cloud resources provided by Amazon EC2. With just 6 commands you could run your scripts remotely on a cluster of one to a few hundred nodes and all it would cost you is some of your free allocation or as little as $0.01 an hour per node. See here for details. Version 2.4.6 of the OpenSees binary is now available for download. Here is the change log. An OpenSees Days workshop will be held at the Campus of the University of Salerno in Fisciano, to constitute a meeting point for researchers and practitioners on topics relevant to modeling, analysis and design in the fields of structural and earthquake engineering. Deadlines to remember:
  • 31 December 2014 - Abstract submission
  • 1 March 2015 - Paper submission
  • 15 March 2015 - Early bird registration
For more information, please consult the brochure. We are conducting a survey to identify problems ans shortcoming associated with OpenSees. Please help by filling out the survey. NEES and PEER hosted this years two day event on September 25-26 at the Richmond field Station, UC Berkeley. The presentations are now available online and can be found here OpenSees is now available for use to all on NEEShub through the OpenSeesLab tool. For those of you with large models or many runs to perform, the machines on which this tool runs is very very very fast.

I have posted a YouTube video showing how to perform an OpenSees simulation using this tool. An improved version will be available soon. The OpenSees GUI applications, BuildingTcl and OS Navigator, are also available to run.

Try them out, registration and use of the machines are free!

Welcome to the website for OpenSees, a software framework for developing applications to simulate the performance of structural and geotechnical systems subjected to earthquakes.

The goal of the OpenSees development is to improve the modeling and computational simulation in earthquake engineering through open-source development.

OpenSees is under continual development, so users and developers should expect changes and updates on a regular basis. In this sense, all users are developers so it is important to register. More information on Open Source is available.

The development and application of OpenSees is sponsored by the Pacific Earthquake Engineering Research Center through the National Science Foundation engineering and education centers program.

OpenSees has been selected as the simulation component for the George E. Brown, Jr. Network for Earthquake Engineering Simulation and is being sponsored by NEEScomm . NEEScomm provides support for the ongoing maintenace of OpenSees and support to integrate OpenSees with the IT and EOT resources that NEEScomm makes available to the earthquake engineering community.

More info...