An efficient halo approach for Euler-Lagrange simulations based on MPI-3 shared memory

Euler-Lagrange methods are a common approach for simulation of dispersed particle-laden flow, e.g. in turbomachinery. In this approach, the fluid is treated as continuous phase with an Eulerian field solver whereas the Lagrangian movement of the dispersed phase is described through the equations of motion for each individual particle. In high-performance computing, the load of the fluid phase is only dependent on the degrees of freedom and load-balancing steps can be taken a priori, thereby ensuring optimal scaling.