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parloops: Support subdomains on dx measure #791

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Merged
merged 1 commit into from
May 27, 2016
Merged

parloops: Support subdomains on dx measure #791

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2 changes: 1 addition & 1 deletion firedrake/parloops.py
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Original file line number Diff line number Diff line change
Expand Up @@ -39,7 +39,7 @@ def __repr__(self):
_maps = {
'cell': {
'nodes': lambda x: x.cell_node_map(),
'itspace': lambda mesh, measure: mesh.cell_set
'itspace': lambda mesh, measure: mesh.cell_subset(measure.subdomain_id())
},
'interior_facet': {
'nodes': lambda x: x.interior_facet_node_map(),
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17 changes: 17 additions & 0 deletions tests/regression/test_par_loops.py
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Expand Up @@ -162,6 +162,23 @@ def test_cg_max_field_extruded(f_extruded):
3./4, 3./4, 3./4]).all()


@pytest.mark.parametrize("subdomain", [1, 2])
def test_cell_subdomain(subdomain):
from os.path import abspath, dirname, join
mesh = Mesh(join(abspath(dirname(__file__)), "..",
"meshes", "cell-sets.msh"))

V = FunctionSpace(mesh, "DG", 0)
expect = interpolate(as_ufl(1), V, subset=mesh.cell_subset(subdomain))

f = Function(V)
par_loop("""
for (int i=0; i<f.dofs; i++) f[i][0] = 1.0;
""", dx(subdomain), {'f': (f, WRITE)})

assert np.allclose(f.dat.data, expect.dat.data)


def test_walk_facets_rt():
m = UnitSquareMesh(3, 3)
V = FunctionSpace(m, 'RT', 1)
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