LANL Software: LA-CC-15-069 No. C15097
LaGriT Home • LaGriT Documentation • Meshing Portfolio
Los Alamos Grid Toolbox (LaGriT) is a library of user callable tools that provide mesh generation, mesh optimization and dynamic mesh maintenance in two and three dimensions. LaGriT is used for a variety of geology and geophysics modeling applications including porous flow and transport model construction, finite element modeling of stress/strain in crustal fault systems, seismology, discrete fracture networks, asteroids and hydrothermal systems.
The general capabilities of LaGriT can also be used outside of earth science applications and applied to nearly any system that requires a grid/mesh and initial and boundary conditions, setting of material properties and other model setup functions. It can also be use as a tool to pre- and post-process and analyze vertex and mesh based data.
PyLaGriT is a Python interface for LaGriT that allows LaGriT functionality to be accessed interactively and in batch mode from Python. This allows the meshing capabilities of LaGriT to be combined with the numeric and scientific functionality of Python. PyLaGriT allows interactive and automated querying of mesh properties, enhanced looping functionality, and user defined error checking based on LaGriT output.
Download the repo by running:
$ git clone https://github.com/lanl/LaGriT.git
$ cd LaGriT/The simplest way to build LaGriT is:
mkdir build/ && cd build/
cmake .. && makeYou will find lagrit executable in the build/ directory.
Note, LaGriT will continue to build if ExodusII is not found. The Exodus and Netcdf libs are needed to write ExodusII libraries and are not otherwise needed.
-- ==========================================
-- ============Configuring LaGriT============
-- ===================v3.3.3=================
-- Compile LaGriT as a static binary = ON
-- Could NOT find Exodus (missing: Exodus_LIBRARIES Exodus_INCLUDE_DIR)
WARNING: ExodusII and/or other dependencies could not be found. Compiling without ExodusII support.
[100%] Built target lagrit.exe
$ ./lagrit
* * * * * * * * * * * * * * * * * * * * * * * * *
* * *
* * Program: LaGriT V3.3.3 Darwin *
* * Date Compile: 2022/03/30 *
* * Run Time: 2022/Mar 30 15:59:25 *
* * Manual: https://lagrit.lanl.gov *
* * *
* * * * * * * * * * * * * * * * * * * * * * * * *
-----oOo-----
LaGriT V3 LA-CC-15-069 https://github.com/lanl/LaGriT
Copyright 2016. Triad National Security, LLC. All rights reserved. This
program was produced under U.S. Government contract 89233218CNA000001
for Los Alamos National Laboratory (LANL), which is operated by Triad
National Security, LLC for the U.S. Department of Energy/National Nuclear
Security Administration. All rights in the program are reserved by Triad
National Security, LLC, and the U.S. Department of Energy/National Nuclear
Security Administration. The Government is granted for itself and others
acting on its behalf a nonexclusive, paid-up, irrevocable worldwide license
in this material to reproduce, prepare derivative works, distribute copies
to the public, perform publicly and display publicly, and to permit others to
do so. This software is open source and available under the BSD-3 License.
-----oOo-----
Output log file: lagrit.out
Command log file: lagrit.log
Enter a command
finish
LaGriT successfully completed
Install to default directories: (This is not working for some platforms, you can still build without Exodus)
$ ./install-exodus.shExodus Installation instructions: Seacas ExodusII
You may also specify more advanced build directions:
$ mkdir build/ && cd build/
$ cmake .. \
-D LaGriT_BUILD_STATIC=ON \
-D CMAKE_BUILD_TYPE=Debug \
-D Exodus_ROOT=${EXO_INSTALL_DIR} \
-D CMAKE_INSTALL_PREFIX=`pwd`/../install/
$ make && make install-D LaGriT_BUILD_STATIC- Builds LaGriT as a static binary (default;
ON) or as a shared library (.so,.dylib,.dll)
- Builds LaGriT as a static binary (default;
-D CMAKE_BUILD_TYPE- Sets the build type. Choose between
DebugandRelease.
- Sets the build type. Choose between
-D Exodus_ROOT- Sets the root directory of Exodus. Must be specified if you wish to use Exodus.
-D CMAKE_INSTALL_PREFIX- Sets where to install LaGriT when running
make install. Defaults to/usr/local/.
- Sets where to install LaGriT when running
To test LaGriT, simply run:
$ python test/runtests.pyTest output can be found in the test/lagrit-tests.log file.
Additional options are available by running:
$ python test/runtests.py --help- LaGriT Documentation
- PyLaGriT documentation
- lagrit.lanl.gov: Web Page
- Contribution Agreement for External Collaborators
- Copyright License
- Code Development with cmake
- Installation for old LaGriT V2