The repo was started to organize a PhD reading course on HPC for PDE:s given at the division of scientific computing, Uppsala University in the fall 2020 - spring 2021. The main goal of the project is to develop an distributed matrix free finite difference code for solving systems of hyperbolic PDE:s based on the SBP framework.
Parallelization is carried out using the PETSc library. For instructions on how to install PETSc see https://www.mcs.anl.gov/petsc/documentation/installation.html. In order to build you must first set the environment variables PETSC_DIR and PETSC_ARCH. See https://www.mcs.anl.gov/petsc/documentation/installation.html#envvars.
The following demos are available (with listed make targets in parenthesis):
- Acoustic wave equation on first order form in 2D (
wave) - Advection equation in 1D and 2D (
adv_1D,adv_2D) - The reflection problem (
reflection)
To build a demo, from the code directory do make target order=N where target is one of the above or all, and
N is one of 2,4,6, specifying the order of accuracy of the SBP operators used in the simulation. If not specified, the default order used is 4.
- To build with optimization flags do
make opt app=target order=N. - To build with debug flags do
make debug app=target order=N. - To build with optimization and debug flags do
make opt-debug app=target order=N.
To run the solver, from the code directory do mpirun -n Nprocs bin/target to get more information on inputs for the demo.
Authors: Vidar Stiernström Gustav Eriksson