1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
#define BOOST_TEST_MODULE TestEigenSolver
#include <boost/test/unit_test.hpp>
#include <Eigen/SparseLU>
#include <amgcl/solver/eigen.hpp>
#include <amgcl/backend/builtin.hpp>
#include <amgcl/adapter/crs_tuple.hpp>
#include <amgcl/profiler.hpp>
#include "sample_problem.hpp"
namespace amgcl {
profiler<> prof;
}
BOOST_AUTO_TEST_SUITE( test_eigen_solver )
BOOST_AUTO_TEST_CASE(eigen_solver)
{
std::vector<int> ptr;
std::vector<int> col;
std::vector<double> val;
std::vector<double> rhs;
size_t n = sample_problem(16, val, col, ptr, rhs);
amgcl::backend::crs<double> A(std::tie(n, ptr, col, val));
typedef
amgcl::solver::EigenSolver<Eigen::SparseLU<Eigen::SparseMatrix<double, Eigen::ColMajor, int> > >
Solver;
Solver solve(A);
std::vector<double> x(n);
std::vector<double> r(n);
solve(rhs, x);
amgcl::backend::residual(rhs, A, x, r);
BOOST_CHECK_SMALL(sqrt(amgcl::backend::inner_product(r, r)), 1e-8);
}
BOOST_AUTO_TEST_SUITE_END()
|
