Each proxy application available in this project is contained in its own subdirectory.
These applications have been released individually and contain their own license and release information.
LULESH v1.0 (Livermore Unstructured Lagrangian Explicit Shock Hydrodynamics) is a proxy app that models a Sedov blast wave using an explicit Lagrangian hydrodynamics algorithm on an unstructured mesh. It was developed originally by:
- Jeff Keasler (keasler1@llnl.gov)
- Rich Hornung (hornung1@llnl.gov)
Details about LULESH v1.0, including versions implemented in a variety of programming models, can be found at https://codesign.llnl.gov/lulesh.php.
Depending on CMake configuration options you provide, this repository can generate sequential and OpenMP baseline versions (i.e., non-RAJA) and RAJA versions for sequential, OpenMP, and CUDA GPU execution.
By default, each version of LULESH v1.0 included here runs the Sedov problem to a pre-defined end time and reports execution timing, a figure of merit (FOM) grind-time, and verification that the solution is correct. Command line arguments allow one to optionally:
- set a fixed number of time cycles to run
- set the number of elements in the mesh
- print run progress that reports information about each time cycle.
To get information about runtime options, run an executable with the
-h option.
LULESH v2.0 is an extension of LULESH v1.0. LULESH v2.0 also models a Sedov blast wave using an explicit Lagrangian hydrodynamics algorithm on an unstructured mesh.
It was extended from LULESH v1.0 by:
- Ian Karlin (karlin1@llnl.gov)
- Jeff Keasler (keasler1@llnl.gov)
- Rob Neely (neely4@llnl.gov)
Details about LULESH v2.0 can be found at https://codesign.llnl.gov/lulesh.php. LULESH 2.0 Updates and Changes describes how LULESH v2.0 is different that LULESH v1.0.
Depending on CMake configuration options you provide, this repository can generate sequential and OpenMP baseline versions (i.e., non-RAJA) and RAJA versions for sequential, OpenMP, and CUDA GPU execution.
By default, each version of LULESH v2.0 included here runs the Sedov problem to a pre-defined end time and reports execution timing, a figure of merit (FOM) grind-time, and verification that the solution is correct. Similar to LULESH v1.0, command line arguments allow one to optionally:
- set a fixed number of time cycles to run
- set the number of elements in the mesh
- print run progress that reports information about each time cycle.
In addition, command line options are provided for:
- setting the number of material regions
- setting load imbalance and cost parameters between regions
- generating output files for visualization with VisIt
To get information about runtime options, run an executable with the
-h option.