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rAKA/test/test_fe_engine/test_fe_engine_precomputation.cc
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test_fe_engine_precomputation.cc
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/**
* @file test_fe_engine_precomputation.cc
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Mon Jun 14 2010
* @date last modification: Mon Feb 19 2018
*
* @brief test of the fem class
*
* @section LICENSE
*
* Copyright (©) 2010-2018 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "pybind11_akantu.hh"
#include "test_fe_engine_fixture.hh"
/* -------------------------------------------------------------------------- */
#include <pybind11/embed.h>
#include <pybind11/numpy.h>
/* -------------------------------------------------------------------------- */
using namespace akantu;
namespace py = pybind11;
using namespace py::literals;
template <typename type_>
class TestFEMPyFixture : public TestFEMFixture<type_> {
using parent = TestFEMFixture<type_>;
public:
void SetUp() override {
parent::SetUp();
const auto & connectivities = this->mesh->getConnectivity(this->type);
const auto & nodes = this->mesh->getNodes().begin(this->dim);
coordinates = std::make_unique<Array<Real>>(
connectivities.size(), connectivities.getNbComponent() * this->dim);
for (auto && tuple :
zip(make_view(connectivities, connectivities.getNbComponent()),
make_view(*coordinates, this->dim,
connectivities.getNbComponent()))) {
const auto & conn = std::get<0>(tuple);
const auto & X = std::get<1>(tuple);
for (auto s : arange(conn.size())) {
Vector<Real>(X(s)) = Vector<Real>(nodes[conn(s)]);
}
}
}
void TearDown() override {
parent::TearDown();
coordinates.reset(nullptr);
}
protected:
std::unique_ptr<Array<Real>> coordinates;
};
TYPED_TEST_SUITE(TestFEMPyFixture, fe_engine_types);
TYPED_TEST(TestFEMPyFixture, Precompute) {
SCOPED_TRACE(std::to_string(this->type));
this->fem->initShapeFunctions();
const auto & N = this->fem->getShapeFunctions().getShapes(this->type);
const auto & B =
this->fem->getShapeFunctions().getShapesDerivatives(this->type);
const auto & j = this->fem->getIntegrator().getJacobians(this->type);
// Array<Real> ref_N(this->nb_quadrature_points_total, N.getNbComponent());
// Array<Real> ref_B(this->nb_quadrature_points_total, B.getNbComponent());
Array<Real> ref_j(this->nb_quadrature_points_total, j.getNbComponent());
auto ref_N(N);
auto ref_B(B);
py::module py_engine = py::module::import("py_engine");
auto py_shape = py_engine.attr("Shapes")(py::str(std::to_string(this->type)));
auto kwargs = py::dict(
"N"_a = make_proxy(ref_N), "B"_a = make_proxy(ref_B),
"j"_a = make_proxy(ref_j), "X"_a = make_proxy(*this->coordinates),
"Q"_a = make_proxy(this->fem->getIntegrationPoints(this->type)));
auto ret = py_shape.attr("precompute")(**kwargs);
auto check = [&](auto & ref_A, auto & A, const auto & id) {
SCOPED_TRACE(std::to_string(this->type) + " " + id);
for (auto && n : zip(make_view(ref_A, ref_A.getNbComponent()),
make_view(A, A.getNbComponent()))) {
auto diff = (std::get<0>(n) - std::get<1>(n)).template norm<L_inf>();
EXPECT_NEAR(0., diff, 1e-10);
}
};
check(ref_N, N, "N");
check(ref_B, B, "B");
check(ref_j, j, "j");
}
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