DM Object: 1 MPI processes
  type: swarm
DMSwarmDataBucketView: 
  L                  = 40804 
  buffer             = 4 
  allocated          = 40808 
  nfields registered = 5 
    [  0]     DMSwarm_pid : Mem. usage       = 3.26e-01 (MB) [rank0]
                            blocksize        = 1 
                            atomic size      = 8 
    [  1]    DMSwarm_rank : Mem. usage       = 1.63e-01 (MB) [rank0]
                            blocksize        = 1 
                            atomic size      = 4 
    [  2]       viscosity : Mem. usage       = 3.26e-01 (MB) [rank0]
                            blocksize        = 1 
                            atomic size      = 8 
    [  3]           coorx : Mem. usage       = 3.26e-01 (MB) [rank0]
                            blocksize        = 1 
                            atomic size      = 8 
    [  4]           coory : Mem. usage       = 3.26e-01 (MB) [rank0]
                            blocksize        = 1 
                            atomic size      = 8 
  Total mem. usage                           = 1.47e+00 (MB) (collective)
rank[0] before(40804,40804)
DMSwarmDataEx: instance=0
  topology status:        finalized 
  message lengths status: finalized 
  packer status status:   finalized 
  communication status:   finalized 
  Topology:
    [0] neighbours: 0 
  Message lengths:
    [0] atomic size: 36 
rank[0] after(40804,40804)