PetscMatrixShellMatrixTest Class Reference

Inheritance diagram for PetscMatrixShellMatrixTest:

Public Member Functions
	LIBMESH_CPPUNIT_TEST_SUITE (PetscMatrixShellMatrixTest)
	CPPUNIT_TEST (testInitSizes)
	CPPUNIT_TEST (testGetContext)
	CPPUNIT_TEST (testMult)
	CPPUNIT_TEST_SUITE_END ()
void	setUp ()
void	tearDown ()
void	testInitSizes ()
void	testGetContext ()
void	testMult ()

Detailed Description

Definition at line 44 of file petsc_matrix_shell_matrix_test.C.

Member Function Documentation

CPPUNIT_TEST() [1/3]

PetscMatrixShellMatrixTest::CPPUNIT_TEST

(

testGetContext

)

CPPUNIT_TEST() [2/3]

PetscMatrixShellMatrixTest::CPPUNIT_TEST

(

testInitSizes

)

CPPUNIT_TEST() [3/3]

PetscMatrixShellMatrixTest::CPPUNIT_TEST

(

testMult

)

CPPUNIT_TEST_SUITE_END()

PetscMatrixShellMatrixTest::CPPUNIT_TEST_SUITE_END

(

)

LIBMESH_CPPUNIT_TEST_SUITE()

PetscMatrixShellMatrixTest::LIBMESH_CPPUNIT_TEST_SUITE

(

PetscMatrixShellMatrixTest

)

setUp()

void PetscMatrixShellMatrixTest::setUp ( )

inline

Definition at line 57 of file petsc_matrix_shell_matrix_test.C.

{}

tearDown()

void PetscMatrixShellMatrixTest::tearDown ( )

inline

Definition at line 58 of file petsc_matrix_shell_matrix_test.C.

{}

testGetContext()

void PetscMatrixShellMatrixTest::testGetContext ( )

inline

Definition at line 78 of file petsc_matrix_shell_matrix_test.C.

  {
    LOG_UNIT_TEST;
 
    PetscMatrixShellMatrix<Number> mat(*TestCommWorld);
    const numeric_index_type m = TestCommWorld->size();
    mat.init(m, m, 1, 1);
 
    // init() composes libmesh's own context onto the shell Mat, letting
    // get_context() recover the wrapping object later given only the raw Mat.
    CPPUNIT_ASSERT(PetscMatrixBase<Number>::get_context(mat.mat(), *TestCommWorld) == &mat);
  }

References libMesh::PetscMatrixShellMatrix< T >::init(), libMesh::PetscMatrixBase< T >::mat(), and TestCommWorld.

testInitSizes()

void PetscMatrixShellMatrixTest::testInitSizes ( )

inline

Definition at line 60 of file petsc_matrix_shell_matrix_test.C.

  {
    LOG_UNIT_TEST;
 
    PetscMatrixShellMatrix<Number> mat(*TestCommWorld);
    const numeric_index_type m = TestCommWorld->size();
    mat.init(m, m, /*m_l=*/1, /*n_l=*/1);
 
    CPPUNIT_ASSERT_EQUAL(mat.m(), m);
    CPPUNIT_ASSERT_EQUAL(mat.n(), m);
    CPPUNIT_ASSERT_EQUAL(mat.local_m(), numeric_index_type(1));
    CPPUNIT_ASSERT_EQUAL(mat.local_n(), numeric_index_type(1));
 
    MatType type;
    LibmeshPetscCall2((*TestCommWorld), MatGetType(mat.mat(), &type));
    CPPUNIT_ASSERT(std::string(type) == MATSHELL);
  }

References libMesh::PetscMatrixShellMatrix< T >::init(), libMesh::PetscMatrixBase< T >::local_m(), libMesh::PetscMatrixBase< T >::local_n(), libMesh::PetscMatrixBase< T >::m(), libMesh::PetscMatrixBase< T >::mat(), libMesh::PetscMatrixBase< T >::n(), and TestCommWorld.

testMult()

void PetscMatrixShellMatrixTest::testMult ( )

inline

Definition at line 91 of file petsc_matrix_shell_matrix_test.C.

  {
    LOG_UNIT_TEST;
 
    PetscMatrixShellMatrix<Number> mat(*TestCommWorld);
    const numeric_index_type m = TestCommWorld->size();
    mat.init(m, m, 1, 1);
 
    LibmeshPetscCall2((*TestCommWorld),
                      MatShellSetOperation(mat.mat(), MATOP_MULT,
                                           (void (*)(void))petsc_matrix_shell_matrix_test_mult));
 
    PetscVector<Number> x(*TestCommWorld, m, 1);
    PetscVector<Number> y(*TestCommWorld, m, 1);
    x.set(TestCommWorld->rank(), 3.);
    x.close();
 
    LibmeshPetscCall2((*TestCommWorld), MatMult(mat.mat(), x.vec(), y.vec()));
 
    LIBMESH_ASSERT_NUMBERS_EQUAL(Number(6.), y(TestCommWorld->rank()), TOLERANCE);
  }

References libMesh::PetscVector< T >::close(), libMesh::PetscMatrixShellMatrix< T >::init(), libMesh::PetscMatrixBase< T >::mat(), libMesh::PetscVector< T >::set(), TestCommWorld, libMesh::TOLERANCE, and libMesh::PetscVector< T >::vec().

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The documentation for this class was generated from the following file:

• tests/numerics/petsc_matrix_shell_matrix_test.C