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import itertools
from mpi4py import MPI
import basix
import basix.ufl
import dolfinx
import numpy as np
import pytest
dtypes = [np.float64, np.float32] # Mesh geometry dtypes
write_comm = [MPI.COMM_SELF, MPI.COMM_WORLD] # Communicators for creating mesh
simplex_two_dim = itertools.product(dtypes, [dolfinx.mesh.CellType.triangle], write_comm)
simplex_three_dim = itertools.product(dtypes, [dolfinx.mesh.CellType.tetrahedron], write_comm)
non_simplex_two_dim = itertools.product(dtypes, [dolfinx.mesh.CellType.quadrilateral], write_comm)
non_simplex_three_dim = itertools.product(dtypes, [dolfinx.mesh.CellType.hexahedron], write_comm)
@pytest.fixture(params=simplex_two_dim, scope="module")
def simplex_mesh_2D(request):
dtype, cell_type, write_comm = request.param
mesh = dolfinx.mesh.create_unit_square(write_comm, 10, 10, cell_type=cell_type, dtype=dtype)
return mesh
@pytest.fixture(params=simplex_three_dim, scope="module")
def simplex_mesh_3D(request):
dtype, cell_type, write_comm = request.param
mesh = dolfinx.mesh.create_unit_cube(write_comm, 5, 5, 5, cell_type=cell_type, dtype=dtype)
return mesh
@pytest.fixture(params=non_simplex_two_dim, scope="module")
def non_simplex_mesh_2D(request):
dtype, cell_type, write_comm = request.param
mesh = dolfinx.mesh.create_unit_square(write_comm, 10, 10, cell_type=cell_type, dtype=dtype)
return mesh
@pytest.fixture(params=non_simplex_three_dim, scope="module")
def non_simplex_mesh_3D(request):
dtype, cell_type, write_comm = request.param
mesh = dolfinx.mesh.create_unit_cube(write_comm, 5, 5, 5, cell_type=cell_type, dtype=dtype)
return mesh
@pytest.mark.parametrize("is_complex", [True, False])
@pytest.mark.parametrize("family", ["N1curl", "RT"])
@pytest.mark.parametrize("degree", [1, 4])
@pytest.mark.parametrize("read_comm", [MPI.COMM_SELF, MPI.COMM_WORLD])
def test_read_write_2D(
read_comm, family, degree, is_complex, simplex_mesh_2D, get_dtype, write_function, read_function
):
mesh = simplex_mesh_2D
f_dtype = get_dtype(mesh.geometry.x.dtype, is_complex)
el = basix.ufl.element(family, mesh.ufl_cell().cellname(), degree, dtype=mesh.geometry.x.dtype)
def f(x):
values = np.empty((2, x.shape[1]), dtype=f_dtype)
values[0] = np.full(x.shape[1], np.pi) + x[0]
values[1] = x[1]
if is_complex:
values[0] += 2j * x[1]
values[1] += 2j * x[0]
return values
fname = write_function(mesh, el, f, f_dtype)
MPI.COMM_WORLD.Barrier()
read_function(read_comm, el, f, fname, f_dtype)
@pytest.mark.parametrize("is_complex", [True, False])
@pytest.mark.parametrize("family", ["N1curl", "RT"])
@pytest.mark.parametrize("degree", [1, 4])
@pytest.mark.parametrize("read_comm", [MPI.COMM_SELF, MPI.COMM_WORLD])
def test_read_write_3D(
read_comm, family, degree, is_complex, simplex_mesh_3D, get_dtype, write_function, read_function
):
mesh = simplex_mesh_3D
f_dtype = get_dtype(mesh.geometry.x.dtype, is_complex)
el = basix.ufl.element(family, mesh.ufl_cell().cellname(), degree, dtype=mesh.geometry.x.dtype)
def f(x):
values = np.empty((3, x.shape[1]), dtype=f_dtype)
values[0] = np.full(x.shape[1], np.pi)
values[1] = x[1] + 2 * x[0]
values[2] = np.cos(x[2])
if is_complex:
values[0] += 2j * x[2]
values[1] += 2j * np.cos(x[2])
return values
fname = write_function(mesh, el, f, dtype=f_dtype)
MPI.COMM_WORLD.Barrier()
read_function(read_comm, el, f, fname, dtype=f_dtype)
@pytest.mark.parametrize("is_complex", [True, False])
@pytest.mark.parametrize("family", ["RTCF"])
@pytest.mark.parametrize("degree", [1, 2, 3])
@pytest.mark.parametrize("read_comm", [MPI.COMM_SELF, MPI.COMM_WORLD])
def test_read_write_2D_quad(
read_comm,
family,
degree,
is_complex,
non_simplex_mesh_2D,
get_dtype,
write_function,
read_function,
):
mesh = non_simplex_mesh_2D
f_dtype = get_dtype(mesh.geometry.x.dtype, is_complex)
el = basix.ufl.element(family, mesh.ufl_cell().cellname(), degree, dtype=mesh.geometry.x.dtype)
def f(x):
values = np.empty((2, x.shape[1]), dtype=f_dtype)
values[0] = np.full(x.shape[1], np.pi)
values[1] = x[1] + 2 * x[0]
if is_complex:
values[0] += 2j * x[2]
values[1] += 2j * np.cos(x[2])
return values
hash = write_function(mesh, el, f, f_dtype)
MPI.COMM_WORLD.Barrier()
read_function(read_comm, el, f, hash, f_dtype)
@pytest.mark.parametrize("is_complex", [True, False])
@pytest.mark.parametrize("family", ["NCF"])
@pytest.mark.parametrize("degree", [1, 4])
@pytest.mark.parametrize("read_comm", [MPI.COMM_SELF, MPI.COMM_WORLD])
def test_read_write_hex(
read_comm,
family,
degree,
is_complex,
non_simplex_mesh_3D,
get_dtype,
write_function,
read_function,
):
mesh = non_simplex_mesh_3D
f_dtype = get_dtype(mesh.geometry.x.dtype, is_complex)
el = basix.ufl.element(family, mesh.ufl_cell().cellname(), degree, dtype=mesh.geometry.x.dtype)
def f(x):
values = np.empty((3, x.shape[1]), dtype=f_dtype)
values[0] = np.full(x.shape[1], np.pi) + x[0]
values[1] = np.cos(x[2])
values[2] = x[0]
if is_complex:
values[0] += 2j * x[2]
values[2] -= 1j * x[1]
return values
hash = write_function(mesh, el, f, dtype=f_dtype)
MPI.COMM_WORLD.Barrier()
read_function(read_comm, el, f, hash, dtype=f_dtype)
@pytest.mark.parametrize("is_complex", [True, False])
@pytest.mark.parametrize("family", ["RTCF"])
@pytest.mark.parametrize("degree", [1, 2, 3])
@pytest.mark.parametrize("read_comm", [MPI.COMM_SELF, MPI.COMM_WORLD])
def test_read_write_multiple(
read_comm,
family,
degree,
is_complex,
non_simplex_mesh_2D,
get_dtype,
write_function,
read_function,
):
mesh = non_simplex_mesh_2D
f_dtype = get_dtype(mesh.geometry.x.dtype, is_complex)
el = basix.ufl.element(family, mesh.ufl_cell().cellname(), degree, dtype=mesh.geometry.x.dtype)
def f(x):
values = np.empty((2, x.shape[1]), dtype=f_dtype)
values[0] = np.full(x.shape[1], np.pi)
values[1] = x[1] + 2 * x[0]
if is_complex:
values[0] -= 2j * x[2]
values[1] += 2j * np.cos(x[2])
return values
def g(x):
values = np.empty((2, x.shape[1]), dtype=f_dtype)
values[0] = 2 * x[1]
values[1] = 3 * x[0]
if is_complex:
values[0] += 3j * x[0]
values[1] += 2j * x[0] * x[1]
return values
hash_f = write_function(mesh, el, f, dtype=f_dtype, name="f", append=False)
hash_g = write_function(mesh, el, g, dtype=f_dtype, name="g", append=True)
assert hash_f == hash_g
MPI.COMM_WORLD.Barrier()
read_function(read_comm, el, f, hash_f, dtype=f_dtype, name="f")
read_function(read_comm, el, g, hash_g, dtype=f_dtype, name="g")
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