initial_walls:
  x: [42]
  y: [42]
  z: [42]
intra_node_shape: [64,64,64]
monitor_interval: 20
mpi_grid_shape: [22,22,22]
temporal_blocking_interval: 1


Change grid shape to K maximum
initial_walls:
  x: [42]
  y: [42]
  z: [42]
intra_node_shape: [64,64,64]
monitor_interval: 20
mpi_grid_shape: [32,54,48]
temporal_blocking_interval: 1