Python get_matrix_hpd Examples

Example #1

File: test_linsys.py Project: ManuelMBaumann/krypy

def test_linsys_hpd():
    A = test_utils.get_matrix_hpd()
    Ainv = numpy.linalg.inv(A)

    # solution
    x = (1.+1.j)*numpy.ones((10,1))

    # preconditioner
    m = numpy.array(range(1,11))
    m[-1] = 1.
    M, Minv = numpy.diag(m), numpy.diag(1./m)
    params_adds = [
            { 'M': [ None, Ainv ] + test_utils.get_operators(Minv) },
            { 'Ml': [ None, Ainv ] + test_utils.get_operators(Minv) },
            { 'Mr': [ None, Ainv ] + test_utils.get_operators(Minv) }
            ]
    solvers = [ krypy.linsys.cg, krypy.linsys.minres, krypy.linsys.gmres ]
    for case in produce_cases(A, x, params_adds, solvers):
        yield case

Example #2

File: test_linsys.py Project: ManuelMBaumann/krypy

def test_linsys_hpd():
    A = test_utils.get_matrix_hpd()
    Ainv = numpy.linalg.inv(A)

    # solution
    x = (1. + 1.j) * numpy.ones((10, 1))

    # preconditioner
    m = numpy.array(range(1, 11))
    m[-1] = 1.
    M, Minv = numpy.diag(m), numpy.diag(1. / m)
    params_adds = [{
        'M': [None, Ainv] + test_utils.get_operators(Minv)
    }, {
        'Ml': [None, Ainv] + test_utils.get_operators(Minv)
    }, {
        'Mr': [None, Ainv] + test_utils.get_operators(Minv)
    }]
    solvers = [krypy.linsys.cg, krypy.linsys.minres, krypy.linsys.gmres]
    for case in produce_cases(A, x, params_adds, solvers):
        yield case

Example #3

File: test_linsys.py Project: andrenarchy/krypy

        'tol': [1e-13, 1e-2],
        'maxiter': [15],
        }
    if ls.exact_solution is not None:
        solver_params['x0'].append(ls.exact_solution)
    for params in dictproduct(dict(list(solver_params.items()) +
                              list(params_add.items()))):
        yield params


cases = [
    # spd
    {'A': test_utils.get_matrix_spd(),
     'normal': True, 'self_adjoint': True, 'positive_definite': True},
    # hpd
    {'A': test_utils.get_matrix_hpd(),
     'normal': True, 'self_adjoint': True, 'positive_definite': True},
    # symmetric indefinite
    {'A': test_utils.get_matrix_symm_indef(),
     'normal': True, 'self_adjoint': True},
    # hermitian indefinite
    {'A': test_utils.get_matrix_herm_indef(),
     'normal': True, 'self_adjoint': True},
    # nonsymm
    {'A': test_utils.get_matrix_nonsymm()},
    # nonsymm
    {'A': test_utils.get_matrix_comp_nonsymm()},
    ]


def test_solver():

Example #4

File: test_linsys.py Project: zimoun/krypy

    for params in dictproduct(
            dict(list(solver_params.items()) + list(params_add.items()))):
        yield params


cases = [
    # spd
    {
        'A': test_utils.get_matrix_spd(),
        'normal': True,
        'self_adjoint': True,
        'positive_definite': True
    },
    # hpd
    {
        'A': test_utils.get_matrix_hpd(),
        'normal': True,
        'self_adjoint': True,
        'positive_definite': True
    },
    # symmetric indefinite
    {
        'A': test_utils.get_matrix_symm_indef(),
        'normal': True,
        'self_adjoint': True
    },
    # hermitian indefinite
    {
        'A': test_utils.get_matrix_herm_indef(),
        'normal': True,
        'self_adjoint': True