Ejemplo n.º 1
0
def invoke_stencil(tile_size, offset=False, unroll=False, view=False):

    A = np.random.rand(N.get()).astype(np.float64)
    B1 = np.zeros((N.get()), dtype=np.float64)
    B2 = np.zeros((N.get()), dtype=np.float64)
    B3 = np.zeros((N.get()), dtype=np.float64)

    if offset:
        sdfg = stencil_offset.to_sdfg()
    else:
        sdfg = stencil.to_sdfg()
    sdfg.simplify()
    graph = sdfg.nodes()[0]

    if view:
        sdfg.view()
    # baseline
    sdfg.name = 'baseline'
    csdfg = sdfg.compile()
    csdfg(A=A, B=B1, N=N)
    del csdfg

    subgraph = SubgraphView(graph, [n for n in graph.nodes()])
    st = StencilTiling()
    st.setup_match(subgraph)
    st.tile_size = (tile_size, )
    st.schedule = dace.dtypes.ScheduleType.Sequential
    assert st.can_be_applied(sdfg, subgraph)
    if unroll:
        st.unroll_loops = True
    st.apply(sdfg)
    if view:
        sdfg.view()
    sdfg.name = 'tiled'
    sdfg.validate()
    csdfg = sdfg.compile()
    csdfg(A=A, B=B2, N=N)
    del csdfg
    assert np.allclose(B1, B2)

    sdfg.simplify()
    subgraph = SubgraphView(graph, [n for n in graph.nodes()])
    sf = SubgraphFusion()
    sf.setup_match(subgraph)
    assert sf.can_be_applied(sdfg, subgraph)
    # also test consolidation
    sf.consolidate = True
    sf.apply(sdfg)
    sdfg.name = 'fused'
    csdfg = sdfg.compile()
    csdfg(A=A, B=B3, N=N)
    del csdfg

    print(np.linalg.norm(B1))
    print(np.linalg.norm(B3))
    assert np.allclose(B1, B2)
    assert np.allclose(B1, B3)
    print("PASS")
Ejemplo n.º 2
0
def invoke_stencil(tile_size, offset=False, unroll=False):

    A = np.random.rand(N.get() * 2).astype(np.float64)
    B1 = np.zeros((N.get()), dtype=np.float64)
    B2 = np.zeros((N.get()), dtype=np.float64)
    B3 = np.zeros((N.get()), dtype=np.float64)

    if offset:
        sdfg = stencil_offset.to_sdfg()
    else:
        sdfg = stencil.to_sdfg()
    sdfg.simplify()
    graph = sdfg.nodes()[0]

    # baseline
    sdfg.name = f'baseline_{tile_size}_{offset}_{unroll}'
    csdfg = sdfg.compile()
    csdfg(A=A, B=B1, N=N)
    del csdfg

    subgraph = SubgraphView(graph, [n for n in graph.nodes()])
    st = StencilTiling()
    st.setup_match(subgraph)
    st.tile_size = (tile_size, )
    st.unroll_loops = unroll
    assert st.can_be_applied(sdfg, subgraph)
    # change schedule so that OMP never fails
    st.schedule = dace.dtypes.ScheduleType.Sequential
    st.apply(sdfg)

    sdfg.name = f'tiled_{tile_size}_{offset}_{unroll}'
    csdfg = sdfg.compile()
    csdfg(A=A, B=B2, N=N)
    del csdfg

    sdfg.simplify()
    subgraph = SubgraphView(graph, [n for n in graph.nodes()])
    sf = SubgraphFusion()
    sf.setup_match(subgraph)
    assert sf.can_be_applied(sdfg, subgraph)
    sf.apply(sdfg)

    sdfg.name = f'fused_{tile_size}_{offset}_{unroll}'
    csdfg = sdfg.compile()
    csdfg(A=A, B=B3, N=N)
    del csdfg

    print(np.linalg.norm(B1))
    print(np.linalg.norm(B3))

    print("PASS")