NumericVectorTest< DerivedClass > Class Template Reference

#include <numeric_vector_test.h>

Inheritance diagram for NumericVectorTest< DerivedClass >:

Public Member Functions
void	setUp ()
void	tearDown ()
template<class Base , class Derived >
void	Localize (bool to_one=false)
template<class Base , class Derived >
void	LocalizeIndices ()
void	testLocalize ()
void	testLocalizeBase ()
void	testLocalizeToOne ()
void	testLocalizeToOneBase ()
void	testLocalizeIndices ()
void	testLocalizeIndicesBase ()

Protected Attributes
libMesh::Parallel::Communicator *	my_comm

Detailed Description

template<class DerivedClass>
class NumericVectorTest< DerivedClass >

Definition at line 30 of file numeric_vector_test.h.

Member Function Documentation

Localize()

template<class DerivedClass >

template<class Base , class Derived >

void NumericVectorTest< DerivedClass >::Localize

(

bool

to_one = false

)

Definition at line 48 of file numeric_vector_test.h.

References libMesh::libmesh_real(), NumericVectorTest< DerivedClass >::my_comm, libMesh::Parallel::Communicator::rank(), libMesh::Parallel::Communicator::size(), and libMesh::TOLERANCE.

  {
    const libMesh::processor_id_type root_pid = 0;
    unsigned int block_size  = 10;

    // a different size on each processor.
    unsigned int local_size  = block_size +
      static_cast<unsigned int>(my_comm->rank());
    unsigned int global_size = 0;

    for (libMesh::processor_id_type p=0; p<my_comm->size(); p++)
      global_size += (block_size + static_cast<unsigned int>(p));

    {
      auto v_ptr = libmesh_make_unique<Derived>(*my_comm, global_size, local_size);
      Base & v = *v_ptr;
      std::vector<libMesh::Number> l(global_size);

      const libMesh::dof_id_type
        first = v.first_local_index(),
        last  = v.last_local_index();

      for (libMesh::dof_id_type n=first; n != last; n++)
        v.set (n, static_cast<libMesh::Number>(n));
      v.close();

      if (!to_one)
        v.localize(l);
      else
        v.localize_to_one(l,root_pid);

      if (!to_one || my_comm->rank() == root_pid)
        // Yes I really mean v.size()
        for (libMesh::dof_id_type i=0; i<v.size(); i++)
          CPPUNIT_ASSERT_DOUBLES_EQUAL(libMesh::libmesh_real(i),
                                       libMesh::libmesh_real(l[i]),
                                       libMesh::TOLERANCE*libMesh::TOLERANCE);
    }
  }

LocalizeIndices()

template<class DerivedClass >

template<class Base , class Derived >

void NumericVectorTest< DerivedClass >::LocalizeIndices

(

)

Definition at line 90 of file numeric_vector_test.h.

References libMesh::libmesh_real(), NumericVectorTest< DerivedClass >::my_comm, libMesh::Parallel::Communicator::rank(), libMesh::Parallel::Communicator::size(), and libMesh::TOLERANCE.

  {
    unsigned int block_size  = 10;

    // a different size on each processor.
    unsigned int local_size  = block_size +
      static_cast<unsigned int>(my_comm->rank());
    unsigned int global_size = 0;

    for (libMesh::processor_id_type p=0; p<my_comm->size(); p++)
      global_size += (block_size + static_cast<unsigned int>(p));

    {
      auto v_ptr = libmesh_make_unique<Derived>(*my_comm, global_size, local_size);
      Base & v = *v_ptr;

      // Let's try pulling the same number of entries from each processor
      std::vector<libMesh::Number> values(block_size * my_comm->size());
      std::vector<libMesh::dof_id_type> indices;
      indices.reserve(block_size * my_comm->size());

      const libMesh::dof_id_type
        first = v.first_local_index(),
        last  = v.last_local_index();

      for (libMesh::dof_id_type n=first; n != last; n++)
        v.set (n, static_cast<libMesh::Number>(n));
      v.close();

      libMesh::dof_id_type end_index = 0;
      for (libMesh::processor_id_type p=0; p<my_comm->size(); p++)
        {
          end_index += block_size + p;
          for (unsigned int j = 0; j != block_size; ++j)
            indices.push_back(end_index-j-1);
        }

      v.localize(values, indices);

      end_index = 0;
      for (libMesh::processor_id_type p=0; p<my_comm->size(); p++)
        {
          end_index += block_size + p;
          for (unsigned int j = 0; j != block_size; ++j)
            CPPUNIT_ASSERT_DOUBLES_EQUAL(libMesh::libmesh_real(values[p*block_size+j]),
                                         libMesh::libmesh_real(end_index-j-1),
                                         libMesh::TOLERANCE*libMesh::TOLERANCE);
        }
    }
  }

setUp()

template<class DerivedClass >

void NumericVectorTest< DerivedClass >::setUp

(

)

Definition at line 36 of file numeric_vector_test.h.

References NumericVectorTest< DerivedClass >::my_comm, and TestCommWorld.

  {
    // By default we'll use the whole communicator in parallel;
    // Serial-only NumericVector subclasses will need to override
    // this.
    my_comm = TestCommWorld;
  }

tearDown()

template<class DerivedClass >

void NumericVectorTest< DerivedClass >::tearDown

(

)

Definition at line 44 of file numeric_vector_test.h.

  {}

testLocalize()

template<class DerivedClass >

void NumericVectorTest< DerivedClass >::testLocalize

(

)

Definition at line 141 of file numeric_vector_test.h.

  {
    Localize<DerivedClass,DerivedClass>();
  }

testLocalizeBase()

template<class DerivedClass >

void NumericVectorTest< DerivedClass >::testLocalizeBase

(

)

Definition at line 146 of file numeric_vector_test.h.

  {
    Localize<libMesh::NumericVector<libMesh::Number>,DerivedClass>();
  }

testLocalizeIndices()

template<class DerivedClass >

void NumericVectorTest< DerivedClass >::testLocalizeIndices

(

)

Definition at line 161 of file numeric_vector_test.h.

  {
    LocalizeIndices<DerivedClass,DerivedClass >();
  }

testLocalizeIndicesBase()

template<class DerivedClass >

void NumericVectorTest< DerivedClass >::testLocalizeIndicesBase

(

)

Definition at line 166 of file numeric_vector_test.h.

  {
    LocalizeIndices<libMesh::NumericVector<libMesh::Number>,DerivedClass>();
  }

testLocalizeToOne()

template<class DerivedClass >

void NumericVectorTest< DerivedClass >::testLocalizeToOne

(

)

Definition at line 151 of file numeric_vector_test.h.

  {
    Localize<DerivedClass,DerivedClass >(true);
  }

testLocalizeToOneBase()

template<class DerivedClass >

void NumericVectorTest< DerivedClass >::testLocalizeToOneBase

(

)

Definition at line 156 of file numeric_vector_test.h.

  {
    Localize<libMesh::NumericVector<libMesh::Number>,DerivedClass>(true);
  }

Member Data Documentation

my_comm

template<class DerivedClass >

libMesh::Parallel::Communicator* NumericVectorTest< DerivedClass >::my_comm

protected

Definition at line 33 of file numeric_vector_test.h.

Referenced by NumericVectorTest< DerivedClass >::Localize(), NumericVectorTest< DerivedClass >::LocalizeIndices(), and NumericVectorTest< DerivedClass >::setUp().

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

• tests/numerics/numeric_vector_test.h