samuelpmish / mfem_performance_benchmark Goto Github PK

This repo has a few simple test problems for measuring performance. The three test problems are:

1. Transient Thermal
2. Solid Dynamics
3. Definite Maxwell

Of course, these test problems aren't actually going through the rigamarole of solving a realistic physics problem, they just set up the kind of calculations that would appear in these simulations (i.e. "mass" + "stiffness" + "source" term).

The two main kernels of interest are the jacobian-vector product and the element jacobian calculation.

make OPT='-O3 -ffp-contract=fast'

make OPT='-O3 -mcpu=apple-m1 -fvectorize -fslp-vectorize -ffp-contract=fast'

Start by configuring CMake

cmake . -Bbuild -GNinja -DCMAKE_BUILD_TYPE=Release

Here are some other options that may be relevant

• -DENABLE_CUDA=ON
• -DCMAKE_CUDA_CUDA_ARCHITECTURES=70

Following that, build the project

cd build
ninja

and run one of the tests: poisson, elasticity, or maxwell. The arguments for specifying input meshes, refinement, and other parameters are explained by the executables.

Note: some arguments are problem specific (e.g. -pa is supported by poisson, but not maxwell).