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import pytest | ||
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from gem import impero_utils | ||
from gem.gem import Index, Indexed, IndexSum, Product, Variable | ||
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def test_loop_fusion(): | ||
i = Index() | ||
j = Index() | ||
Ri = Indexed(Variable('R', (6,)), (i,)) | ||
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def make_expression(i, j): | ||
A = Variable('A', (6,)) | ||
s = IndexSum(Indexed(A, (j,)), (j,)) | ||
return Product(Indexed(A, (i,)), s) | ||
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e1 = make_expression(i, j) | ||
e2 = make_expression(i, i) | ||
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def gencode(expr): | ||
impero_c = impero_utils.compile_gem([(Ri, expr)], (i, j)) | ||
return impero_c.tree | ||
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assert len(gencode(e1).children) == len(gencode(e2).children) | ||
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if __name__ == "__main__": | ||
import os | ||
import sys | ||
pytest.main(args=[os.path.abspath(__file__)] + sys.argv[1:]) |
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import pytest | ||
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from gem.gem import Index, Indexed, Product, Variable, Division, Literal, Sum | ||
from gem.optimise import replace_division | ||
from tsfc.coffee_mode import optimise_expressions | ||
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def test_replace_div(): | ||
i = Index() | ||
A = Variable('A', ()) | ||
B = Variable('B', (6,)) | ||
Bi = Indexed(B, (i,)) | ||
d = Division(Bi, A) | ||
result, = replace_division([d]) | ||
expected = Product(Bi, Division(Literal(1.0), A)) | ||
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assert result == expected | ||
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def test_loop_optimise(): | ||
I = 20 | ||
J = K = 10 | ||
i = Index('i', I) | ||
j = Index('j', J) | ||
k = Index('k', K) | ||
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A1 = Variable('a1', (I,)) | ||
A2 = Variable('a2', (I,)) | ||
A3 = Variable('a3', (I,)) | ||
A1i = Indexed(A1, (i,)) | ||
A2i = Indexed(A2, (i,)) | ||
A3i = Indexed(A3, (i,)) | ||
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B = Variable('b', (J,)) | ||
C = Variable('c', (J,)) | ||
Bj = Indexed(B, (j,)) | ||
Cj = Indexed(C, (j,)) | ||
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E = Variable('e', (K,)) | ||
F = Variable('f', (K,)) | ||
G = Variable('g', (K,)) | ||
Ek = Indexed(E, (k,)) | ||
Fk = Indexed(F, (k,)) | ||
Gk = Indexed(G, (k,)) | ||
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Z = Variable('z', ()) | ||
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# Bj*Ek + Bj*Fk => (Ek + Fk)*Bj | ||
expr = Sum(Product(Bj, Ek), Product(Bj, Fk)) | ||
result, = optimise_expressions([expr], (j, k)) | ||
expected = Product(Sum(Ek, Fk), Bj) | ||
assert result == expected | ||
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# Bj*Ek + Bj*Fk + Bj*Gk + Cj*Ek + Cj*Fk => | ||
# (Ek + Fk + Gk)*Bj + (Ek+Fk)*Cj | ||
expr = Sum(Sum(Sum(Sum(Product(Bj, Ek), Product(Bj, Fk)), Product(Bj, Gk)), | ||
Product(Cj, Ek)), Product(Cj, Fk)) | ||
result, = optimise_expressions([expr], (j, k)) | ||
expected = Sum(Product(Sum(Sum(Ek, Fk), Gk), Bj), Product(Sum(Ek, Fk), Cj)) | ||
assert result == expected | ||
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# Z*A1i*Bj*Ek + Z*A2i*Bj*Ek + A3i*Bj*Ek + Z*A1i*Bj*Fk => | ||
# Bj*(Ek*(Z*A1i + Z*A2i) + A3i) + Z*A1i*Fk) | ||
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expr = Sum(Sum(Sum(Product(Z, Product(A1i, Product(Bj, Ek))), | ||
Product(Z, Product(A2i, Product(Bj, Ek)))), | ||
Product(A3i, Product(Bj, Ek))), | ||
Product(Z, Product(A1i, Product(Bj, Fk)))) | ||
result, = optimise_expressions([expr], (j, k)) | ||
expected = Product(Sum(Product(Ek, Sum(Sum(Product(Z, A1i), Product(Z, A2i)), A3i)), | ||
Product(Fk, Product(Z, A1i))), Bj) | ||
assert result == expected | ||
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if __name__ == "__main__": | ||
import os | ||
import sys | ||
pytest.main(args=[os.path.abspath(__file__)] + sys.argv[1:]) |
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import pytest | ||
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import FIAT | ||
from FIAT.discontinuous_lagrange import DiscontinuousLagrange as FIAT_DiscontinuousLagrange | ||
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import ufl | ||
import finat.ufl | ||
from tsfc.finatinterface import create_element as _create_element | ||
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supported_elements = { | ||
# These all map directly to FIAT elements | ||
"Brezzi-Douglas-Marini": FIAT.BrezziDouglasMarini, | ||
"Brezzi-Douglas-Fortin-Marini": FIAT.BrezziDouglasFortinMarini, | ||
"Lagrange": FIAT.Lagrange, | ||
"Nedelec 1st kind H(curl)": FIAT.Nedelec, | ||
"Nedelec 2nd kind H(curl)": FIAT.NedelecSecondKind, | ||
"Raviart-Thomas": FIAT.RaviartThomas, | ||
"Regge": FIAT.Regge, | ||
} | ||
"""A :class:`.dict` mapping UFL element family names to their | ||
FIAT-equivalent constructors.""" | ||
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def create_element(ufl_element): | ||
"""Create a FIAT element given a UFL element.""" | ||
finat_element = _create_element(ufl_element) | ||
return finat_element.fiat_equivalent | ||
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@pytest.fixture(params=["BDM", | ||
"BDFM", | ||
"Lagrange", | ||
"N1curl", | ||
"N2curl", | ||
"RT", | ||
"Regge"]) | ||
def triangle_names(request): | ||
return request.param | ||
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@pytest.fixture | ||
def ufl_element(triangle_names): | ||
return finat.ufl.FiniteElement(triangle_names, ufl.triangle, 2) | ||
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def test_triangle_basic(ufl_element): | ||
element = create_element(ufl_element) | ||
assert isinstance(element, supported_elements[ufl_element.family()]) | ||
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@pytest.fixture(params=["CG", "DG", "DG L2"], scope="module") | ||
def tensor_name(request): | ||
return request.param | ||
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@pytest.fixture(params=[ufl.interval, ufl.triangle, | ||
ufl.quadrilateral], | ||
ids=lambda x: x.cellname(), | ||
scope="module") | ||
def ufl_A(request, tensor_name): | ||
return finat.ufl.FiniteElement(tensor_name, request.param, 1) | ||
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@pytest.fixture | ||
def ufl_B(tensor_name): | ||
return finat.ufl.FiniteElement(tensor_name, ufl.interval, 1) | ||
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def test_tensor_prod_simple(ufl_A, ufl_B): | ||
tensor_ufl = finat.ufl.TensorProductElement(ufl_A, ufl_B) | ||
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tensor = create_element(tensor_ufl) | ||
A = create_element(ufl_A) | ||
B = create_element(ufl_B) | ||
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assert isinstance(tensor, FIAT.TensorProductElement) | ||
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assert tensor.A is A | ||
assert tensor.B is B | ||
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@pytest.mark.parametrize(('family', 'expected_cls'), | ||
[('P', FIAT.GaussLobattoLegendre), | ||
('DP', FIAT.GaussLegendre), | ||
('DP L2', FIAT.GaussLegendre)]) | ||
def test_interval_variant_default(family, expected_cls): | ||
ufl_element = finat.ufl.FiniteElement(family, ufl.interval, 3) | ||
assert isinstance(create_element(ufl_element), expected_cls) | ||
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@pytest.mark.parametrize(('family', 'variant', 'expected_cls'), | ||
[('P', 'equispaced', FIAT.Lagrange), | ||
('P', 'spectral', FIAT.GaussLobattoLegendre), | ||
('DP', 'equispaced', FIAT_DiscontinuousLagrange), | ||
('DP', 'spectral', FIAT.GaussLegendre), | ||
('DP L2', 'equispaced', FIAT_DiscontinuousLagrange), | ||
('DP L2', 'spectral', FIAT.GaussLegendre)]) | ||
def test_interval_variant(family, variant, expected_cls): | ||
ufl_element = finat.ufl.FiniteElement(family, ufl.interval, 3, variant=variant) | ||
assert isinstance(create_element(ufl_element), expected_cls) | ||
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def test_triangle_variant_spectral(): | ||
ufl_element = finat.ufl.FiniteElement('DP', ufl.triangle, 2, variant='spectral') | ||
create_element(ufl_element) | ||
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def test_triangle_variant_spectral_l2(): | ||
ufl_element = finat.ufl.FiniteElement('DP L2', ufl.triangle, 2, variant='spectral') | ||
create_element(ufl_element) | ||
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def test_quadrilateral_variant_spectral_q(): | ||
element = create_element(finat.ufl.FiniteElement('Q', ufl.quadrilateral, 3, variant='spectral')) | ||
assert isinstance(element.element.A, FIAT.GaussLobattoLegendre) | ||
assert isinstance(element.element.B, FIAT.GaussLobattoLegendre) | ||
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def test_quadrilateral_variant_spectral_dq(): | ||
element = create_element(finat.ufl.FiniteElement('DQ', ufl.quadrilateral, 1, variant='spectral')) | ||
assert isinstance(element.element.A, FIAT.GaussLegendre) | ||
assert isinstance(element.element.B, FIAT.GaussLegendre) | ||
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def test_quadrilateral_variant_spectral_dq_l2(): | ||
element = create_element(finat.ufl.FiniteElement('DQ L2', ufl.quadrilateral, 1, variant='spectral')) | ||
assert isinstance(element.element.A, FIAT.GaussLegendre) | ||
assert isinstance(element.element.B, FIAT.GaussLegendre) | ||
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def test_quadrilateral_variant_spectral_rtcf(): | ||
element = create_element(finat.ufl.FiniteElement('RTCF', ufl.quadrilateral, 2, variant='spectral')) | ||
assert isinstance(element.element._elements[0].A, FIAT.GaussLobattoLegendre) | ||
assert isinstance(element.element._elements[0].B, FIAT.GaussLegendre) | ||
assert isinstance(element.element._elements[1].A, FIAT.GaussLegendre) | ||
assert isinstance(element.element._elements[1].B, FIAT.GaussLobattoLegendre) | ||
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def test_cache_hit(ufl_element): | ||
A = create_element(ufl_element) | ||
B = create_element(ufl_element) | ||
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assert A is B | ||
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if __name__ == "__main__": | ||
import os | ||
import sys | ||
pytest.main(args=[os.path.abspath(__file__)] + sys.argv[1:]) |
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import pytest | ||
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import ufl | ||
import finat.ufl | ||
import finat | ||
from tsfc.finatinterface import create_element, supported_elements | ||
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@pytest.fixture(params=["BDM", | ||
"BDFM", | ||
"Lagrange", | ||
"N1curl", | ||
"N2curl", | ||
"RT", | ||
"Regge"]) | ||
def triangle_names(request): | ||
return request.param | ||
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@pytest.fixture | ||
def ufl_element(triangle_names): | ||
return finat.ufl.FiniteElement(triangle_names, ufl.triangle, 2) | ||
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def test_triangle_basic(ufl_element): | ||
element = create_element(ufl_element) | ||
assert isinstance(element, supported_elements[ufl_element.family()]) | ||
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@pytest.fixture | ||
def ufl_vector_element(triangle_names): | ||
return finat.ufl.VectorElement(triangle_names, ufl.triangle, 2) | ||
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def test_triangle_vector(ufl_element, ufl_vector_element): | ||
scalar = create_element(ufl_element) | ||
vector = create_element(ufl_vector_element) | ||
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assert isinstance(vector, finat.TensorFiniteElement) | ||
assert scalar == vector.base_element | ||
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@pytest.fixture(params=["CG", "DG", "DG L2"]) | ||
def tensor_name(request): | ||
return request.param | ||
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@pytest.fixture(params=[ufl.interval, ufl.triangle, | ||
ufl.quadrilateral], | ||
ids=lambda x: x.cellname()) | ||
def ufl_A(request, tensor_name): | ||
return finat.ufl.FiniteElement(tensor_name, request.param, 1) | ||
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@pytest.fixture | ||
def ufl_B(tensor_name): | ||
return finat.ufl.FiniteElement(tensor_name, ufl.interval, 1) | ||
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def test_tensor_prod_simple(ufl_A, ufl_B): | ||
tensor_ufl = finat.ufl.TensorProductElement(ufl_A, ufl_B) | ||
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tensor = create_element(tensor_ufl) | ||
A = create_element(ufl_A) | ||
B = create_element(ufl_B) | ||
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assert isinstance(tensor, finat.TensorProductElement) | ||
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assert tensor.factors == (A, B) | ||
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@pytest.mark.parametrize(('family', 'expected_cls'), | ||
[('P', finat.GaussLobattoLegendre), | ||
('DP', finat.GaussLegendre), | ||
('DP L2', finat.GaussLegendre)]) | ||
def test_interval_variant_default(family, expected_cls): | ||
ufl_element = finat.ufl.FiniteElement(family, ufl.interval, 3) | ||
assert isinstance(create_element(ufl_element), expected_cls) | ||
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@pytest.mark.parametrize(('family', 'variant', 'expected_cls'), | ||
[('P', 'equispaced', finat.Lagrange), | ||
('P', 'spectral', finat.GaussLobattoLegendre), | ||
('DP', 'equispaced', finat.DiscontinuousLagrange), | ||
('DP', 'spectral', finat.GaussLegendre), | ||
('DP L2', 'equispaced', finat.DiscontinuousLagrange), | ||
('DP L2', 'spectral', finat.GaussLegendre)]) | ||
def test_interval_variant(family, variant, expected_cls): | ||
ufl_element = finat.ufl.FiniteElement(family, ufl.interval, 3, variant=variant) | ||
assert isinstance(create_element(ufl_element), expected_cls) | ||
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def test_triangle_variant_spectral(): | ||
ufl_element = finat.ufl.FiniteElement('DP', ufl.triangle, 2, variant='spectral') | ||
create_element(ufl_element) | ||
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def test_triangle_variant_spectral_l2(): | ||
ufl_element = finat.ufl.FiniteElement('DP L2', ufl.triangle, 2, variant='spectral') | ||
create_element(ufl_element) | ||
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def test_quadrilateral_variant_spectral_q(): | ||
element = create_element(finat.ufl.FiniteElement('Q', ufl.quadrilateral, 3, variant='spectral')) | ||
assert isinstance(element.product.factors[0], finat.GaussLobattoLegendre) | ||
assert isinstance(element.product.factors[1], finat.GaussLobattoLegendre) | ||
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def test_quadrilateral_variant_spectral_dq(): | ||
element = create_element(finat.ufl.FiniteElement('DQ', ufl.quadrilateral, 1, variant='spectral')) | ||
assert isinstance(element.product.factors[0], finat.GaussLegendre) | ||
assert isinstance(element.product.factors[1], finat.GaussLegendre) | ||
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def test_quadrilateral_variant_spectral_dq_l2(): | ||
element = create_element(finat.ufl.FiniteElement('DQ L2', ufl.quadrilateral, 1, variant='spectral')) | ||
assert isinstance(element.product.factors[0], finat.GaussLegendre) | ||
assert isinstance(element.product.factors[1], finat.GaussLegendre) | ||
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def test_cache_hit(ufl_element): | ||
A = create_element(ufl_element) | ||
B = create_element(ufl_element) | ||
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assert A is B | ||
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def test_cache_hit_vector(ufl_vector_element): | ||
A = create_element(ufl_vector_element) | ||
B = create_element(ufl_vector_element) | ||
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assert A is B | ||
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if __name__ == "__main__": | ||
import os | ||
import sys | ||
pytest.main(args=[os.path.abspath(__file__)] + sys.argv[1:]) |
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