Algorithm 1.

Dataflow Control

1: def dataflow_ ctrl():

2:    at every timestep do

3:      if pixel_in then

4:        for i from 0 to (nr_parallel−1) do

5:          store_data(pointer_in, pixel_in)

6:          pointer_in.x.update()

7:          pointer_in.y.update()

8:        end for

9:      end if

10:      if conditions_to_compute(pointer_in): then

11:        for i from (nr_parallel−1) downto 0 do

12:          data_pixels=read_data(pointer_in-i)

13:          data_to_crossbar(data_pixels)

14:          pointer_out.x.update()

15:          pointer_out.y.update()

16:        end for

17:        if pointer_out == end then

18:          computation_complete=True

19:        end if

20:      end if

21:      if conditions_to_residual(pointer_in) then

22:        read_res()

23:      end if

24:    end