CC mpi_cart.cpp -Ofast -o mpi_cart -fopenmp salloc --reservation= -p cpu --mem-per-cpu=2000 --time=0:05:00 srun --ntasks=4 ./mpi_cart
CC laplace2d.cpp mpi_navier.cpp -I. -O3 -g -o laplace -fopenmp salloc --reservation= -p cpu --mem-per-cpu=2000 --time=0:05:00 srun --ntasks=4 ./laplace