Update ufl

.github/workflows/tsfc-tests.yml

@@ -1,6 +1,5 @@
-# This workflow will install tsfc and run its unit tests
-
-name: tsfc integration
+# This workflow will test the UFL branch against the latest Firedrake container
+name: TSFC integration
 
 on:
   pull_request:
@@ -11,37 +10,38 @@ jobs:
   tsfc-tests:
     name: Run TSFC tests
     runs-on: ubuntu-latest
-
+    container:
+      image: firedrakeproject/firedrake-vanilla-default:latest
+      # Github hosted runners require running as root user:
+      # https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners/about-github-hosted-runners#docker-container-filesystem
+      options: --user root
     env:
-      CC: gcc-10
-      CXX: g++-10
-
+      # Since we are running as root we need to set PYTHONPATH to be able to find the installed
+      # packages
+      PYTHONPATH: /home/firedrake/firedrake:/home/firedrake/.local/lib/python3.12/site-packages
     steps:
       - uses: actions/checkout@v4
-      - name: Set up Python
-        uses: actions/setup-python@v5
         with:
-          python-version: 3.12
+          # Download UFL into a subdirectory not called 'ufl' to make sure
+          # that the package installs correctly. Otherwise 'import ufl' may
+          # work even if the installation failed because it is a subdirectory.
+          path: ufl-repo
+
+      - name: Uninstall existing UFL
+        run: |
+          python3 -m pip uninstall --break-system-packages -y ufl
+
+      - name: Create virtual environment
+        run: |
+          python3 -m venv venv-ufl
 
       - name: Install UFL
         run: |
-          pip3 install .
+          . venv-ufl/bin/activate
+          pip install ./ufl-repo
+          pip list
 
-      - name: Clone tsfc
-        uses: actions/checkout@v4
-        with:
-          path: ./tsfc
-          repository: firedrakeproject/tsfc
-          ref: master
-      - name: Install tsfc
+      - name: Run TSFC tests
         run: |
-          cd tsfc
-          pip install -r requirements-ext.txt
-          pip install git+https://github.com/coneoproject/COFFEE.git#egg=coffee
-          pip install git+https://github.com/firedrakeproject/fiat.git#egg=fenics-fiat
-          pip install git+https://github.com/FInAT/FInAT.git#egg=finat
-          pip install git+https://github.com/firedrakeproject/loopy.git#egg=loopy
-          pip install .[ci]
-          pip install pytest
-      - name: Run tsfc unit tests
-        run: python3 -m pytest tsfc/tests
+          . venv-ufl/bin/activate
+          python -m pytest /home/firedrake/firedrake/tests/tsfc

AUTHORS

@@ -28,7 +28,8 @@ Contributors:
   | Corrado Maurini       <[email protected]>
   | Jack S. Hale          <[email protected]>
   | Tuomas Airaksinen     <[email protected]>
-  | Nacime Bouziani       <[email protected]>
   | Reuben W. Hill        <[email protected]>
+  | Cécile Daversin-Catty <[email protected]>
   | Nacime Bouziani       <[email protected]>
   | Matthew Scroggs       <[email protected]>
+  | Jørgen S. Dokken      <[email protected]>

test/test_classcoverage.py

@@ -24,6 +24,9 @@
     Not,
     Or,
     PermutationSymbol,
+    RidgeJacobian,
+    RidgeJacobianDeterminant,
+    RidgeJacobianInverse,
     SpatialCoordinate,
     TensorConstant,
     VectorConstant,
@@ -292,9 +295,14 @@ def testAll(self):
     _test_object(g, (), ())
     g = FacetJacobianInverse(domain)
     _test_object(g, (dim - 1, dim), ())
-
-    g = FacetNormal(domain)
-    _test_object(g, (dim,), ())
+    g = RidgeJacobian(domain3D)
+    _test_object(g, (3, 1), ())
+    g = RidgeJacobianDeterminant(domain3D)
+    _test_object(g, (), ())
+    g = RidgeJacobianInverse(domain3D)
+    _test_object(g, (1, 3), ())
+    g = FacetNormal(domain3D)
+    _test_object(g, (3,), ())
     # g = CellNormal(domain)
     # _test_object(g, (dim,), ())
 

test/test_external_operator.py

@@ -31,7 +31,7 @@
 from ufl.algorithms.apply_derivatives import apply_derivatives
 from ufl.core.external_operator import ExternalOperator
 from ufl.finiteelement import FiniteElement
-from ufl.form import BaseForm
+from ufl.form import BaseForm, ZeroBaseForm
 from ufl.pullback import identity_pullback
 from ufl.sobolevspace import H1
 
@@ -205,10 +205,10 @@ def test_differentiation_procedure_action(V1, V2):
 def test_extractions(domain_2d, V1):
     from ufl.algorithms.analysis import (
         extract_arguments,
-        extract_arguments_and_coefficients,
         extract_base_form_operators,
         extract_coefficients,
         extract_constants,
+        extract_terminals_with_domain,
     )
 
     u = Coefficient(V1)
@@ -219,15 +219,15 @@ def test_extractions(domain_2d, V1):
 
     assert extract_coefficients(e) == [u]
     assert extract_arguments(e) == [vstar_e]
-    assert extract_arguments_and_coefficients(e) == ([vstar_e], [u])
+    assert extract_terminals_with_domain(e) == ([vstar_e], [u], [])
     assert extract_constants(e) == [c]
     assert extract_base_form_operators(e) == [e]
 
     F = e * dx
 
     assert extract_coefficients(F) == [u]
     assert extract_arguments(e) == [vstar_e]
-    assert extract_arguments_and_coefficients(e) == ([vstar_e], [u])
+    assert extract_terminals_with_domain(e) == ([vstar_e], [u], [])
     assert extract_constants(F) == [c]
     assert F.base_form_operators() == (e,)
 
@@ -236,14 +236,14 @@ def test_extractions(domain_2d, V1):
 
     assert extract_coefficients(e) == [u]
     assert extract_arguments(e) == [vstar_e, u_hat]
-    assert extract_arguments_and_coefficients(e) == ([vstar_e, u_hat], [u])
+    assert extract_terminals_with_domain(e) == ([vstar_e, u_hat], [u], [])
     assert extract_base_form_operators(e) == [e]
 
     F = e * dx
 
     assert extract_coefficients(F) == [u]
     assert extract_arguments(e) == [vstar_e, u_hat]
-    assert extract_arguments_and_coefficients(e) == ([vstar_e, u_hat], [u])
+    assert extract_terminals_with_domain(e) == ([vstar_e, u_hat], [u], [])
     assert F.base_form_operators() == (e,)
 
     w = Coefficient(V1)
@@ -252,14 +252,14 @@ def test_extractions(domain_2d, V1):
 
     assert extract_coefficients(e2) == [u, w]
     assert extract_arguments(e2) == [vstar_e2, u_hat]
-    assert extract_arguments_and_coefficients(e2) == ([vstar_e2, u_hat], [u, w])
+    assert extract_terminals_with_domain(e2) == ([vstar_e2, u_hat], [u, w], [])
     assert extract_base_form_operators(e2) == [e, e2]
 
     F = e2 * dx
 
     assert extract_coefficients(e2) == [u, w]
     assert extract_arguments(e2) == [vstar_e2, u_hat]
-    assert extract_arguments_and_coefficients(e2) == ([vstar_e2, u_hat], [u, w])
+    assert extract_terminals_with_domain(e2) == ([vstar_e2, u_hat], [u, w], [])
     assert F.base_form_operators() == (e, e2)
 
 
@@ -516,3 +516,10 @@ def test_replace(V1):
 
     dN_replaced = dN._ufl_expr_reconstruct_(u, argument_slots=(A, uhat))
     assert G == dN_replaced
+
+
+def test_ZeroDerivative(V1):
+    u = Coefficient(V1, count=1)
+    N = ExternalOperator(Coefficient(V1, count=0), function_space=V1)
+    dN1 = expand_derivatives(derivative(N, u))
+    assert isinstance(dN1, ZeroBaseForm)

test/test_interpolate.py

@@ -27,9 +27,9 @@
 from ufl.algorithms.ad import expand_derivatives
 from ufl.algorithms.analysis import (
     extract_arguments,
-    extract_arguments_and_coefficients,
     extract_base_form_operators,
     extract_coefficients,
+    extract_terminals_with_domain,
 )
 from ufl.algorithms.expand_indices import expand_indices
 from ufl.core.interpolate import Interpolate
@@ -172,12 +172,12 @@ def test_extract_base_form_operators(V1, V2):
     # -- Interpolate(u, V2) -- #
     Iu = Interpolate(u, V2)
     assert extract_arguments(Iu) == [vstar]
-    assert extract_arguments_and_coefficients(Iu) == ([vstar], [u])
+    assert extract_terminals_with_domain(Iu) == ([vstar], [u], [])
 
     F = Iu * dx
     # Form composition: Iu * dx <=> Action(v * dx, Iu(u; v*))
     assert extract_arguments(F) == []
-    assert extract_arguments_and_coefficients(F) == ([], [u])
+    assert extract_terminals_with_domain(F) == ([], [u], [])
 
     for e in [Iu, F]:
         assert extract_coefficients(e) == [u]
@@ -186,7 +186,7 @@ def test_extract_base_form_operators(V1, V2):
     # -- Interpolate(u, V2) -- #
     Iv = Interpolate(uhat, V2)
     assert extract_arguments(Iv) == [vstar, uhat]
-    assert extract_arguments_and_coefficients(Iv) == ([vstar, uhat], [])
+    assert extract_terminals_with_domain(Iv) == ([vstar, uhat], [], [])
     assert extract_coefficients(Iv) == []
     assert extract_base_form_operators(Iv) == [Iv]
 

test/test_measures.py

@@ -16,6 +16,8 @@ def test_construct_forms_from_default_measures():
     ds = Measure("ds")
     dS = Measure("dS")
 
+    dl = Measure("dr")
+
     dP = Measure("dP")
     # dV = Measure("dV")
 
@@ -37,6 +39,8 @@ def test_construct_forms_from_default_measures():
     assert ds.integral_type() == "exterior_facet"
     assert dS.integral_type() == "interior_facet"
 
+    assert dl.integral_type() == "ridge"
+
     assert dP.integral_type() == "vertex"
     # TODO: Change dP to dV:
     # assert dP.integral_type() == "point"

test/test_mixed_function_space_with_mesh_sequence.py

@@ -0,0 +1,104 @@
+from ufl import (
+    CellVolume,
+    Coefficient,
+    FacetArea,
+    FacetNormal,
+    FunctionSpace,
+    Measure,
+    Mesh,
+    MeshSequence,
+    SpatialCoordinate,
+    TestFunction,
+    TrialFunction,
+    grad,
+    inner,
+    split,
+    triangle,
+)
+from ufl.algorithms import compute_form_data
+from ufl.domain import extract_domains
+from ufl.finiteelement import FiniteElement, MixedElement
+from ufl.pullback import contravariant_piola, identity_pullback
+from ufl.sobolevspace import H1, L2, HDiv
+
+
+def test_mixed_function_space_with_mesh_sequence_basic():
+    cell = triangle
+    elem0 = FiniteElement("Lagrange", cell, 1, (), identity_pullback, H1)
+    elem1 = FiniteElement("Brezzi-Douglas-Marini", cell, 1, (2,), contravariant_piola, HDiv)
+    elem2 = FiniteElement("Discontinuous Lagrange", cell, 0, (), identity_pullback, L2)
+    elem = MixedElement([elem0, elem1, elem2])
+    mesh0 = Mesh(FiniteElement("Lagrange", cell, 1, (2,), identity_pullback, H1), ufl_id=100)
+    mesh1 = Mesh(FiniteElement("Lagrange", cell, 1, (2,), identity_pullback, H1), ufl_id=101)
+    mesh2 = Mesh(FiniteElement("Lagrange", cell, 1, (2,), identity_pullback, H1), ufl_id=102)
+    domain = MeshSequence([mesh0, mesh1, mesh2])
+    V = FunctionSpace(domain, elem)
+    u = TrialFunction(V)
+    v = TestFunction(V)
+    f = Coefficient(V, count=1000)
+    g = Coefficient(V, count=2000)
+    u0, u1, u2 = split(u)
+    v0, v1, v2 = split(v)
+    f0, f1, f2 = split(f)
+    g0, g1, g2 = split(g)
+    dx1 = Measure("dx", mesh1)
+    x = SpatialCoordinate(mesh1)
+    form = x[1] * f0 * inner(grad(u0), v1) * dx1(999)
+    fd = compute_form_data(
+        form,
+        do_apply_function_pullbacks=True,
+        do_apply_integral_scaling=True,
+        do_apply_geometry_lowering=True,
+        preserve_geometry_types=(CellVolume, FacetArea),
+        do_apply_restrictions=True,
+        do_estimate_degrees=True,
+        complex_mode=False,
+    )
+    (id0,) = fd.integral_data
+    assert fd.preprocessed_form.arguments() == (v, u)
+    assert fd.reduced_coefficients == [f]
+    assert form.coefficients()[fd.original_coefficient_positions[0]] is f
+    assert id0.domain is mesh1
+    assert id0.integral_type == "cell"
+    assert id0.subdomain_id == (999,)
+    assert fd.original_form.domain_numbering()[id0.domain] == 0
+    assert id0.integral_coefficients == set([f])
+    assert id0.enabled_coefficients == [True]
+
+
+def test_mixed_function_space_with_mesh_sequence_signature():
+    cell = triangle
+    mesh0 = Mesh(FiniteElement("Lagrange", cell, 1, (2,), identity_pullback, H1), ufl_id=100)
+    mesh1 = Mesh(FiniteElement("Lagrange", cell, 1, (2,), identity_pullback, H1), ufl_id=101)
+    dx0 = Measure("dx", mesh0)
+    dx1 = Measure("dx", mesh1)
+    n0 = FacetNormal(mesh0)
+    n1 = FacetNormal(mesh1)
+    form_a = inner(n1, n1) * dx0(999)
+    form_b = inner(n0, n0) * dx1(999)
+    assert form_a.signature() == form_b.signature()
+    assert extract_domains(form_a) == (mesh0, mesh1)
+    assert extract_domains(form_b) == (mesh1, mesh0)
+
+
+def test_mixed_function_space_with_mesh_sequence_hash():
+    cell = triangle
+    elem0 = FiniteElement("Lagrange", cell, 1, (), identity_pullback, H1)
+    elem1 = FiniteElement("Brezzi-Douglas-Marini", cell, 1, (2,), contravariant_piola, HDiv)
+    elem2 = FiniteElement("Discontinuous Lagrange", cell, 0, (), identity_pullback, L2)
+    elem = MixedElement([elem0, elem1, elem2])
+    mesh0 = Mesh(FiniteElement("Lagrange", cell, 1, (2,), identity_pullback, H1), ufl_id=100)
+    mesh1 = Mesh(FiniteElement("Lagrange", cell, 1, (2,), identity_pullback, H1), ufl_id=101)
+    mesh2 = Mesh(FiniteElement("Lagrange", cell, 1, (2,), identity_pullback, H1), ufl_id=102)
+    domain = MeshSequence([mesh0, mesh1, mesh2])
+    domain_ = MeshSequence([mesh0, mesh1, mesh2])
+    V = FunctionSpace(domain, elem)
+    V_ = FunctionSpace(domain_, elem)
+    u = TrialFunction(V)
+    u_ = TrialFunction(V_)
+    assert hash(domain_) == hash(domain)
+    assert domain_ == domain
+    assert hash(V_) == hash(V)
+    assert V_ == V
+    assert hash(u_) == hash(u)
+    assert u_ == u

test/test_piecewise_checks.py

@@ -32,6 +32,9 @@
     FacetJacobian,
     FacetJacobianDeterminant,
     FacetJacobianInverse,
+    RidgeJacobian,
+    RidgeJacobianDeterminant,
+    RidgeJacobianInverse,
 )
 from ufl.finiteelement import FiniteElement
 from ufl.pullback import identity_pullback
@@ -284,6 +287,13 @@ def mappings_are_cellwise_constant(domain, test):
         assert is_cellwise_constant(e) == test
         e = FacetJacobianInverse(domain)
         assert is_cellwise_constant(e) == test
+    if domain.topological_dimension() > 2:
+        e = RidgeJacobian(domain)
+        assert is_cellwise_constant(e) == test
+        e = RidgeJacobianDeterminant(domain)
+        assert is_cellwise_constant(e) == test
+        e = RidgeJacobianInverse(domain)
+        assert is_cellwise_constant(e) == test
 
 
 def test_mappings_are_cellwise_constant_on_linear_affine_cells(affine_domains):