License Info

Ascent License

BSD 3-Clause License

Copyright (c) 2015-2025, Lawrence Livermore National Security, LLC.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

  1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

  2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

  3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Third Party Builtin Libraries

Here is a list of the software components used by Ascent in source form and the location of their respective license files in our source repo.

C and C++ Libraries

  • gtest: From BLT - (BSD Style License)

  • lodepng: thirdparty_builtin/lodepng/LICENSE (BSD Style License)

  • tiny_obj: thirdparty_builtin/tiny_obj/LICENSE (MIT Style License)

  • apcomp: src/libs/apcomp (BSD Style License)

  • dray: src/libs/dray (BSD Style License)

  • vtk-h: src/libs/vtkh (BSD Style License)

  • rover: src/libs/rover (BSD Style License)

Python Libraries

  • Bridge Kernel: ascent/ascent_jupyter_bridge/LICENSE (BSD Style License)

Fortran Libraries

  • fruit: thirdparty_builtin/fruit-3.3.9/LICENSE.txt (BSD Style License)

Build System

Proxy Applications

Ascent includes working copies of three previously released HPC simulation proxy applications. These proxies are provided under their original licenses:

Documentation