lo = -2. hi = 2. n = 4 h = 1.
 lo = 0. hi = 2. n = 2 h = 1.
DM Object: Potential Grid 1 MPI processes
  type: plex
Potential Grid in 2 dimensions:
  0-cells: 15
  1-cells: 22
  2-cells: 8
Labels:
  marker: 1 strata with value/size (1 (24))
  Face Sets: 4 strata with value/size (4 (2), 2 (2), 1 (4), 3 (4))
  depth: 3 strata with value/size (0 (15), 1 (22), 2 (8))
  celltype: 3 strata with value/size (4 (8), 0 (15), 1 (22))
DM Object: Particle Grid 1 MPI processes
  type: swarm
DMSwarmDataBucketView: 
  L                  = 10 
  buffer             = 0 
  allocated          = 10 
  nfields registered = 5 
    [  0]     DMSwarm_pid : Mem. usage       = 8.00e-05 (MB) [rank0]
                            blocksize        = 1 
                            atomic size      = 8 
    [  1]    DMSwarm_rank : Mem. usage       = 4.00e-05 (MB) [rank0]
                            blocksize        = 1 
                            atomic size      = 4 
    [  2] DMSwarmPIC_coor : Mem. usage       = 1.60e-04 (MB) [rank0]
                            blocksize        = 2 
                            atomic size      = 16 [full block, bs=2]
                            atomic size/item = 8 
    [  3]  DMSwarm_cellid : Mem. usage       = 4.00e-05 (MB) [rank0]
                            blocksize        = 1 
                            atomic size      = 4 
    [  4]             w_q : Mem. usage       = 8.00e-05 (MB) [rank0]
                            blocksize        = 1 
                            atomic size      = 8 
  Total mem. usage                           = 4.00e-04 (MB) (collective)
(0,0) = 0.
(1,0) = 1.66311
(2,0) = 1.66311
(3,0) = 0.
(0,1) = 0.
(1,1) = 0.
(2,1) = 0.
(3,1) = 0.
(0,0) = 0.
(1,0) = 0.235916
(2,0) = -0.0154225
(3,0) = 0.235916
(4,0) = 0.
(0,1) = 0.
(1,1) = -0.1559
(2,1) = 1.25429
(3,1) = -0.1559
(4,1) = 0.
(0,2) = 0.
(1,2) = 0.
(2,2) = 0.
(3,2) = 0.
(4,2) = 0.
(0,0) = 0.
(1,0) = -0.160934
(2,0) = -0.160934
(3,0) = 0.
(0,1) = 0.
(1,1) = 1.55118
(2,1) = 1.55118
(3,1) = 0.
(0,2) = 0.
(1,2) = 0.
(2,2) = 0.
(3,2) = 0.
(0,0) = 0.
(0,1) = 0.
(1,0) = 1.40665
(1,1) = 0.
(2,0) = -0.318895
(2,1) = 0.
(3,0) = 1.40665
(3,1) = 0.
(4,0) = 0.
(4,1) = 0.
Total number density = 10.