1 / 16

OpenSees on NEEShub

OpenSees on NEEShub. Frank McKenna UC Berkeley. Bell’s Law.

yule
Download Presentation

OpenSees on NEEShub

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. OpenSees on NEEShub Frank McKenna UC Berkeley

  2. Bell’s Law Bell's Law of Computer Class formationwas discovered about 1972.  It states that technology advances in semiconductors, storage, user interface and networking advance every decade enable a new, usually lower priced computing platform to form.  Once formed, each class is maintained as a quite independent industry structure. Gordon Bell, http://research.microsoft.com/~GBell/Pubs.htm

  3. Cloud Computing Cloud computing is internet-based computing , whereby shared resources, software, and information are provided to computers and other devices on demand, like the electricity grid. source: wikipedia • Applications are run and data is stored on remote machines in the cloud. • User accesses the applications and files using an internet based application, e.g. web browser for Google Docs and NEEShub. • Pros & Cons?

  4. NEEShub • The power behind NEES at http://nees.org • Maintained and developed at Purdue by NEEScomm • Built using proven HUBzero technology (nanoHUb > 100,000 users) • A science gateway for education and research in earthquake engineering • Through a browser engineers can: • Upload and view experimental data • Browse online seminars and courses • Launch sophisticated tools using remote computational resources (OpenSeesLab)

  5. NEEShub (First Release July 2010)

  6. NEEShub Tools and Resources Simulation Data Management Documents, Learning Objects, Series & TOOLS

  7. http://nees.org/resources/tools

  8. The Open System for Earthquake Engineering Simulation (OpenSees) is a software framework for simulating the seismic response of structural and geotechnical systems. OpenSees is the computational platform for research in performance-based earthquake engineering at PEER and has been the simulation component for NEES since 2004. Since 2005 the OpenSees application has been downloaded over 35,000 times by users in over 120 countries. • The current status of OpenSees is: • Version 2.2.2 now available with over 80 material types, 30 element types, 20 integration schemes, 15 numerical solvers, 10 solution algorithms • Open Source and Free to Use • Contains Cutting Edge Research not available in commercial codes • Allows developers to dynamically add material and element routines (c or fortran), integration schemes, recorders, solvers, and algorithms. • Runs sequentially and in parallel on multi-core Windows, Linux and Mac machines • Available on some of the most high performance computers (HPCs) in the world • GUI’s available (BuildingTcl, OpenSeesPL, OpenSeesNavigator) • IT IS FULLY PROGRAMMABLE

  9. The OpenSeesLab tool:http://nees.org/resources/tools/openseeslab Is a suite of Simulation Tools powered by OpnSees for: Submitting OpenSees scripts (input files) to HUB resources Educating students and practicing engineers Performing useful tasks

  10. OpenSees Interpreter Tool

  11. File Transfer Tool Upload: From Your Machine to NEEShub Download: From NEEShub to Your Machine

  12. Lateral Pile Analysis http://opensees.berkeley.edu/wiki/index.php/Laterally-Loaded_Pile_Foundation Chris McGann U. Washington

  13. SDOF Earthquake Response

  14. Moment Curvature Analysis

  15. OpenSeesLab GUI using Rappture set Tn 1.0 if {$argc != 0} { package require Rappture # open the XML file containing the run parameters set driver [Rappture::library [lindex $argv 0]] set Tn [$driver get input.group.(Tn).current] } while {$ok == 0 && $t < $maxT} { if {$argc != 0 } { driver put -append yes output.curve.component.xy "$time $d\n" } else { puts $outFile "$time $d" } } # save the updated XML describing the run... if {$argc != 0 } { Rappture::result $driver } <?xml version="1.0"?> <run> <tool> <title> SDOF Free Vibration Response</title> <about> This tool demonstrates the effect of free vibration</about> <command>@tool/../../bin/RunOpenSees @tool/freeVibration.tcl.tcl @driver</command> </tool> <input> <number id="Tn"> <about> <label>Period of Structure</label> <description>Period of Structure (sec)</description> </about> <default>1.0</default> </number> </input> </run>

  16. NEEShub things to know: Anyone can get an account (it’s free!) You can have 5 sessions running at once The sessions stay alive until you kill them With each session you get a new data directory, some tools by default will store their information there. You have 1GB storage by default (it is expandable!)

More Related