Matrix.cpp
No OneTemporary
Actions

Subscribers

None

File Metadata


	#include "support.h"

	TEST_CASE("GooseFEM::Matrix", "Matrix.h")
	{

	SECTION("solve")
	{
	GooseFEM::Mesh::Quad4::Regular mesh(2, 2);

	size_t nne = mesh.nne();
	size_t ndim = mesh.ndim();
	size_t nelem = mesh.nelem();
	size_t nnode = mesh.nnode();

	xt::xtensor<double, 3> a = xt::empty<double>({nelem, nne * ndim, nne * ndim});
	xt::xtensor<double, 1> b = xt::random::rand<double>({nnode * ndim});

	for (size_t e = 0; e < nelem; ++e) {
	xt::xtensor<double, 2> ae = xt::random::rand<double>({nne * ndim, nne * ndim});
	ae = (ae + xt::transpose(ae)) / 2.0;
	xt::view(a, e, xt::all(), xt::all()) = ae;
	}

	GooseFEM::Matrix<> A(mesh.conn(), mesh.dofs());
	A.assemble(a);
	xt::xtensor<double, 1> C = A.Dot(b);
	xt::xtensor<double, 1> B = A.Solve(C);

	REQUIRE(B.size() == b.size());
	REQUIRE(xt::allclose(B, b));
	}
	}