ex9.yml

# the alpha parameter
alpha: 0.125
# global data-size (excluding the number of ghost layers for boundary conditions)
global_size: { height: 60, width: 12 }
# degree of parallelism (number of blocks in each dimension)
parallelism: { height: 2, width: 2 }
# PDI configuration
pdi:
  metadata: # small values for which PDI keeps a copy
    ii: int
    dsize: { type: array, subtype: int, size: 2 }
    psize: { type: array, subtype: int, size: 2 }
    pcoord: { type: array, subtype: int, size: 2 }
  data: # values for which PDI does not keep a copy
    main_field: { type: array, subtype: double, size: [ '$dsize[0]', '$dsize[1]' ] }
  plugins:
    #*** load the mpi plugin
    #...
    decl_hdf5:
      file: ex9.h5
      #*** add MPI communicator
      #...
      collision_policy: write_into
      datasets:
        #*** modify the size of datasets from local array to global array
        #...
        main_field: { type: array, subtype: double, size: [ 3, ..., ... ] }
      write:
        main_field:
          when: '$ii>0 & $ii<4'
          memory_selection:
            size: ['$dsize[0]-2', '$dsize[1]-2']
            start: [1, 1]
          dataset_selection:
            #*** define the size of the dataset selection in (x,y)-direction
            #...
            size: [1, ..., ...]
            #*** modify the start point to avoid overlapping
            #...
            start: ['$ii-1', ..., ...]