reenabled unit tests
Created by: sebkelle1
This restores some unit test examples to a compilable state.
Usage: cmake -DCMAKE_CXX_COMPILER=CC <SPH_SRC_DIR> && make
salloc -C gpu --nodes=1 --exclusive --ntasks-per-core=2 --cpus-per-task=1 --partition=debug --time 00:30:00 bash
srun -n1 ./test/unit/run_mpi_tests
# can use more than one rank too
For the space filling curve developement we can of course add another test target that does not use MPI and can simply be run on the login node / your laptop.