Use, Performance, and System Interfaces for MOOSE

Usability

MOOSE-based applications are designed to be operated from the command-line as a single binary application. This binary when executed will produce a list of available options if executed without any arguments. In practice, the binary expects and input file for defining the simulation to perform.

./moose_test-opt -i input.i

The command-line interface includes the ability to add or override parameters within the supplied input file from the command-line. This is accomplished by adding the parameter to be modified (using the full syntax) at the end of the command.

./moose_test-opt -i input.i Mesh/uniform_refine=1

If an invalid input to the command-line is provided the binary application will produce an error message to aid in correcting the mistake. And during simulations the binary will begin by displaying information regarding the current application, dependencies, and current execution.

Performance

MOOSE-based applications are designed to operate in parallel with distributed and/or shared memory parallel operation on modern macOS and Linux operating systems. Distributed memory operation uses the Message Passing Interface (MPI) and shared memory operation may use a variety of models such as OpenMP or pthreads.

System Interfaces

MOOSE-based applications may be compiled with modern Clang or GCC C++ compilers. The application also supports optional packages via the libMesh and PETSc configuration. Examples include the MUMPS and SuperLU solver packages. Please refer to the documentation for libMesh and PETSc for further details.