zsmb

```import os os.environ['OMP_NUM_THREADS'] = '1' import dolfinx.mesh import dolfinx.fem import dolfinx.io from mpi4py import MPI import gc comm = MPI.COMM_WORLD for i in range(3000): print(f"{comm.rank}, {i}") comm_cp = MPI.COMM_WORLD.Dup() msh...