Coo/OpenMP/Morpheus_MatrixOperations_Impl.hpp

 
#ifndef MORPHEUS_COO_OPENMP_MATRIXOPERATIONS_IMPL_HPP
#define MORPHEUS_COO_OPENMP_MATRIXOPERATIONS_IMPL_HPP
 
#include <Morpheus_Macros.hpp>
#if defined(MORPHEUS_ENABLE_OPENMP)
 
#include <Morpheus_Exceptions.hpp>
#include <Morpheus_SpaceTraits.hpp>
#include <Morpheus_FormatTraits.hpp>
#include <Morpheus_FormatTags.hpp>
#include <Morpheus_Spaces.hpp>
 
namespace Morpheus {
namespace Impl {
 
template <typename ExecSpace, typename Matrix, typename Vector>
void update_diagonal(
    Matrix& A, const Vector& diagonal,
    typename std::enable_if_t<
        Morpheus::is_coo_matrix_format_container_v<Matrix> &&
        Morpheus::is_dense_vector_format_container_v<Vector> &&
        Morpheus::has_custom_backend_v<ExecSpace> &&
        Morpheus::has_openmp_execution_space_v<ExecSpace> &&
        Morpheus::has_access_v<ExecSpace, Matrix, Vector>>* = nullptr) {
  using size_type = typename Matrix::size_type;
 
// Note: Assumes only a single entry exists for every diagonal element.
// i.e a single threads will update a particular non-zero on the diagonal
#pragma omp parallel for
  for (size_type n = 0; n < A.nnnz(); n++) {
    if (A.row_indices(n) == A.column_indices(n)) {
      A.values(n) = diagonal[A.column_indices(n)];
    }
  }
}
 
template <typename ExecSpace, typename Matrix, typename Vector>
void get_diagonal(
    Matrix& A, const Vector& diagonal,
    typename std::enable_if_t<
        Morpheus::is_coo_matrix_format_container_v<Matrix> &&
        Morpheus::is_dense_vector_format_container_v<Vector> &&
        Morpheus::has_custom_backend_v<ExecSpace> &&
        Morpheus::has_openmp_execution_space_v<ExecSpace> &&
        Morpheus::has_access_v<ExecSpace, Matrix, Vector>>* = nullptr) {
  throw Morpheus::NotImplementedException("get_diagonal not implemented yet");
}
 
template <typename ExecSpace, typename Matrix, typename SizeType,
          typename ValueType>
void set_value(Matrix&, SizeType, SizeType, ValueType,
               typename std::enable_if_t<
                   Morpheus::is_coo_matrix_format_container_v<Matrix> &&
                   Morpheus::has_custom_backend_v<ExecSpace> &&
                   Morpheus::has_openmp_execution_space_v<ExecSpace> &&
                   Morpheus::has_access_v<ExecSpace, Matrix>>* = nullptr) {
  throw Morpheus::NotImplementedException("set_value not implemented yet");
}
 
template <typename ExecSpace, typename Matrix, typename IndexVector,
          typename ValueVector>
void set_values(
    Matrix&, typename IndexVector::value_type, const IndexVector,
    typename IndexVector::value_type, const IndexVector, const ValueVector,
    typename std::enable_if_t<
        Morpheus::is_coo_matrix_format_container_v<Matrix> &&
        Morpheus::is_dense_vector_format_container_v<IndexVector> &&
        Morpheus::is_dense_vector_format_container_v<ValueVector> &&
        Morpheus::has_custom_backend_v<ExecSpace> &&
        Morpheus::has_openmp_execution_space_v<ExecSpace> &&
        Morpheus::has_access_v<ExecSpace, Matrix, IndexVector, ValueVector>>* =
        nullptr) {
  throw Morpheus::NotImplementedException("set_values not implemented yet");
}
 
template <typename ExecSpace, typename Matrix, typename TransposeMatrix>
void transpose(
    const Matrix&, TransposeMatrix&,
    typename std::enable_if_t<
        Morpheus::is_coo_matrix_format_container_v<Matrix> &&
        Morpheus::is_coo_matrix_format_container_v<TransposeMatrix> &&
        Morpheus::has_custom_backend_v<ExecSpace> &&
        Morpheus::has_openmp_execution_space_v<ExecSpace> &&
        Morpheus::has_access_v<ExecSpace, Matrix, TransposeMatrix>>* =
        nullptr) {
  throw Morpheus::NotImplementedException("transpose not implemented yet");
}
 
}  // namespace Impl
}  // namespace Morpheus
 
#endif  // MORPHEUS_ENABLE_OPENMP
#endif  // MORPHEUS_COO_OPENMP_MATRIXOPERATIONS_IMPL_HPP