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This page is the starting point for those who want to (a) download LST software products for the first time, or (b) upgrade their existing installations.
Table of Contents
- Software Products and Documentation
Contains a brief description of the main LST software products, with links to download pages for individual products. The individual download pages contain installation notes, and other information about supported platforms. - Product Licensing
Contains a brief overview of licensing. There are links to information about:- How to request a license from LST
- How to install or upgrade network licenses
- Configuring LS-DYNA to Access Licenses
Describes how to configure LS-DYNA to access network and/or node-locked licenses.
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1. Software Products and Documentation
These are the LST software products and documentation available for download from this site.
- LST Manuals : old and new manuals can be downloaded from this page.
- LS-DYNA for Unix/Linux/Solaris : a general purpose transient dynamic finite element program (follow this link to download LS-DYNA command-line executables for Linux/Unix/Solaris/Microsoft Windows)
- LST WinSuite : a complete solution for the Microsoft Windows platform
- LS-DYNA for Microsoft Windows : a general purpose transient dynamic finite element program (follow this link to download LS-DYNA command-line executables for Microsoft Windows)
- LSTC Barrier, Dummy, and Tire Models : barrier, dummy, and tire models provided at no charge to LS-DYNA customers
- LS-PrePost : an advanced interactive program for preparing input data for LS-DYNA and processing results from LS-DYNA analyses.
- LS-OPT : a standalone Design Optimization and Probabilistic Analysis package with an interface to LS-DYNA.
- LS-TaSC : (Topology and Shape Computation) a tool for the topology optimization of non-linear problems involving dynamic loads and contact conditions.
Each of these components must be downloaded and installed separately. LST provides highly-optimized versions of LS-DYNA, tuned for a large variety of hardware and operating systems. For this reason, many builds of LS-DYNA function correctly only for a narrow range of hardware and OS. So it is critically important that users download a build of LS-DYNA which most closely matches their own hardware/OS combination.
2. Product Licensing (Network and Node-Locked)
LS-DYNA is licensed according to how many cores on which the software may run at once. For example, an 8-core license allows any of the following scenarios (and more):
- The user runs one job in parallel on 8 cores;
- The user runs two jobs in parallel on 4 cores each;
- The user runs up to 8 jobs on a single core.
Licensing schemes for LS-DYNA:
- Node-Locked License
Permits the use of LS-DYNA on a single machine only (or on a limited number of machines). Please contact you sales representative or channel partner if you have questions about the availability of nodelocked licenses. - Network License
Permits the use of LS-DYNA on all supported platforms, up to a total number of licensed cores. The LSTC License Server must be run on a Unix, Linux, Solaris, or Microsoft Windows machine. All versions of LS-DYNA connect through the local network to the LSTC License Server in order to obtain permission to run. When the maximum number of licenses is exceeded, LS-DYNA is either placed in a queue to wait for the first available license, or LS-DYNA exits according to the user's preference.
LS-PrePost, LS-OPT, and LS-TaSC do not require runtime licenses for use by LST customers. All LST customers may download, install, and run these programs without charge. No license key is required. These products are actively developed and maintained by LSTC.
License HOWTO Documents
- Install a New Network License
Unix/Linux/Solaris / Microsoft Windows - Upgrade Network Licenses and/or License Manager Software
Unix/Linux/Solaris / Microsoft Windows.
3. Configuring LS-DYNA to Access Licenses
Accessing Network Licenses under Unix/Linux/Solaris
Environment Variable Settings
LS-DYNA can obtain a network license from an LSTC License Server using environment variables. Environment variables are specified in different ways, depending on the user logon shell:
To use a network license only, set the environment variable LSTC_LICENSE to 'network'
You must also specify the host or IP address of the machine where the license server is running using the LSTC_LICENSE_SERVER environment variable. The proper setting of this variable depends on whether or not you are using the default port for the license server, and whether you are using a single license server, or a redundant triad server.
Single quotes are required for redundant servers in order to avoid misinterpretation of parentheses. There are other methods for specifying the license server, but setting these environment variables overrides all other methods.
LSTC_FILE License File Directives
LS-DYNA can read server information from a file named LSTC_FILE. The best way to do this is to create/edit a file named LSTC_FILE in the same directory as the LS-DYNA executable. Add these lines to LSTC_FILE
DO NOT enclose host_or_ip with single quotes. As in the case of ENVIRONMENT VARIABLES (above), there are four possible ways to specify '#LICENSE_SERVER'. The '#' character must appear in the first column of the line, with no space between '#' and LICENSE_TYPE or LICENSE_SERVER. The effect of these lines is the same as setting the environment variables
Keep in mind that you can override any settings found in LSTC_FILE by directly setting the environment variables LSTC_LICENSE and LSTC_LICENSE_SERVER. This is useful to know in cases where LSTC_FILE contains incorrect information, but you cannot change the file because of permission issues.
WARNING: Some text editors do not automatically create files with complete lines. Use 'vi LSTC_FILE' to check this. If you see [noeol] at the bottom of the vi window, then there is no final end-of-line character in the file. If that happens, then type ':wq' in vi to write the file and quit. Vi will add the proper eol character.
NOTE: If LSTC_FILE is found in '/usr/local/lstc', then that file will be used instead, regardless of whether or not a file named LSTC_FILE is found with the LS-DYNA executable. We no longer recommend placing LSTC_FILE in '/usr/local/lstc'.
NOTE: If the LSTC_FILE environment variable is set to a file name, then $LSTC_FILE is used instead of any file named LSTC_FILE found with the LS-DYNA executable. We recommend that you not set the LSTC_FILE environment variable, unless absolutely necessary.
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Setting the LSTC_FILE environment variable may be necessary if, for some reason, LSTC_FILE cannot be found when placed with the executable. Then you must set the LSTC_FILE environment variable to the absolute pathname of the file LSTC_FILE. This should not happen under ordinary circumstances.
Accessing Network Licenses under Microsoft Windows
- Open the LS-DYNA Manager Program
- Select Set LS-DYNA ENV. Variables from the Env Variables menu
- In the dialog that appears, select Network for the License Type
- Specify the name of the machine running the LSTC License Server (if the server is running on the local machine, enter localhost in the Network License Manager field)
The general format for the Network License Manager field varies according to the type of server configuration you have:
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SERVER TYPE | NETWORK LICENSE MANAGER SETTING |
---|---|
Single Server with Default Port | host_or_ip |
Single Server on Port 'port' | port@host_or_ip |
Redundant Server with Default Ports | (host_or_ip1 host_or_ip2 host_or_ip3) |
Redundant Server on Specified Ports | (port1@host_or_ip1 port2@host_or_ip2 port3@host_or_ip3) |
LS-DYNA® from Livermore Software Technology (LST) is the world's most advanced general-purpose nonlinear finite element program. It is capable of simulating complex real-world problems, and is widely accepted as the premier analysis software package for today's most challenging engineering applications.
At Predictive Engineering, we are longtime experts in LS-DYNA software and can help you buy LS-DYNA and then guide you through the acquisition, licensing, installation, support and in-depth LS-DYNA training. We like to say that we don't sell LS-DYNA but we advocate LS-DYNA to clients where it will make them money. If you would like to learn more about purchasing and learning LS-DYNA, please take a look at this PDF: LS-DYNA The advanced simulation tool for nonlinear, linear, dynamic, static analysis and multi-physics (DEM, FSI, CFD, Electro-magnetics, SPH, Galerkin EFM & More)
LS-DYNA can predict how a prototype will respond to real-world events such as crashes, drops, earthquakes, bird strikes and more. The ability to simulate these events in software minimizes the time and expense that must be devoted to experimental testing.
Applications of LS-DYNA are numerous, from the simulation of automotive collisions to predicting stresses and deformations in metal forming processes to aerospace bird strike or hail damage on composites with meshless methods (SPH or DEM). Although its street creed is in extreme nonlinear, it is also at home running standard linear solutions for stress, normal modes analysis or advanced PSD fatigue analyses. It is truly an analysis code for all seasons and all terrains. Purchasing LS-DYNA can be as simple as start-up personal license or leasing LS-DYNA on a month-to-month basis. We would welcome the opportunity to work with you on buying LS-DYNA or simply taking it for a test drive. Please feel free to contact us to get started on taking advantage of the world's most powerful and inexpensive complete analysis code.
Unlimited LS-DYNA versions available for all common platforms
Cost: $6000
- 1 license LS-DYNA for 1-year lease (unlimited functionality, no limitations), SMP- or MPP-version
- Full technical support by phone or email for 12 months
- New software releases included during lease period
- Includes LS-PrePost and LS-OPT
- Only available to new customers