DM Object: 4 MPI processes
  type: da
Processor [0] M 8 N 8 m 2 n 2 w 2 s 1
X range of indices: 0 4, Y range of indices: 0 4
Processor [1] M 8 N 8 m 2 n 2 w 2 s 1
X range of indices: 4 8, Y range of indices: 0 4
Processor [2] M 8 N 8 m 2 n 2 w 2 s 1
X range of indices: 0 4, Y range of indices: 4 8
Processor [3] M 8 N 8 m 2 n 2 w 2 s 1
X range of indices: 4 8, Y range of indices: 4 8
min: (0., 0., 0.) max: (1., 1., 0.)
DM Object: ions (pic_) 4 MPI processes
  type: swarm
ions in 2 dimensions:
  Number of particles per rank: 4 4 4 4