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MeanField/libmeanfield/interface/operators/gravity_field.cppm

147 lines
4.9 KiB
C++

module;
#include <cstdint>
#include <memory>
#include <mfem.hpp>
export module mean_field:operators.gravity_field;
export import :fem;
export import :mapping.domain_mapper;
export import :operators.gravity_field_jacobian;
export import :operators.context.gravity_field;
export namespace mean_field::operators {
enum class GravityResidualBlock : std::uint8_t {
gradient_equation = 0,
poisson_equation = 1,
count = 2
};
constexpr int
gravity_residual_block_index(const GravityResidualBlock block) noexcept {
return static_cast<int>(block);
}
inline constexpr int gravity_residual_block_count =
gravity_residual_block_index(GravityResidualBlock::count);
class GravityFieldOperator final : public mfem::Operator {
public:
GravityFieldOperator(
fem::FEM &f,
const mapping::DomainMapperStateless &domain_mapper,
context::gravity_field::GravityFieldLinearizationContext
&linearization_context,
const mfem::Array<int> &state_true_offsets,
GravityFieldJacobianOperator &jacobian
);
context::gravity_field::GravityFieldPreparationReport Prepare(
const mfem::Vector &state,
const context::gravity_field::GravityFieldRevisions &revisions
);
void Mult(
const mfem::Vector &state,
mfem::Vector &residual
) const override;
Operator &GetGradient(const mfem::Vector &state) const override;
[[nodiscard]] const mfem::Array<int> &
GetStateTrueOffsets() const noexcept;
[[nodiscard]] const mfem::Array<int> &
GetResidualTrueOffsets() const noexcept;
[[nodiscard]] context::gravity_field::GravityFieldLinearizationContext &
GetLinearizationContext() noexcept;
[[nodiscard]] const context::gravity_field::
GravityFieldLinearizationContext &
GetLinearizationContext() const noexcept;
void ApplyGravityUnknowns(
const mfem::Vector &gravity_gradient,
const mfem::Vector &gravity_potential,
const context::gravity_field::GravityFieldGeometryContext
&geometry_context,
mfem::Vector &action
) const;
void ApplyDensitySource(
const mfem::Vector &density,
const context::gravity_field::GravityFieldGeometryContext
&geometry_context,
mfem::Vector &action
) const;
private:
fem::FEM &m_fem;
const mapping::DomainMapperStateless &m_domain_mapper;
context::gravity_field::GravityFieldLinearizationContext
&m_linearization_context;
mfem::Array<int> m_state_true_offsets;
mfem::Array<int> m_residual_true_offsets;
GravityFieldJacobianOperator &m_jacobian;
};
class ReducedGravityFieldOperator final : public mfem::Operator {
public:
ReducedGravityFieldOperator(
GravityFieldOperator &gravity_field_operator,
context::gravity_field::GravityFieldGeometryContext
&gravity_field_geometry_context,
const mfem::Vector &displacement
);
ReducedGravityFieldOperator(const ReducedGravityFieldOperator &) =
delete;
ReducedGravityFieldOperator &
operator=(const ReducedGravityFieldOperator &) = delete;
ReducedGravityFieldOperator(ReducedGravityFieldOperator &&) = delete;
ReducedGravityFieldOperator &
operator=(ReducedGravityFieldOperator &&) = delete;
void SetDisplacement(const mfem::Vector &displacement);
[[nodiscard]] const mfem::Vector &GetDisplacement() const;
void BuildRightHandSide(
const mfem::Vector &density,
mfem::Vector &right_hand_side
) const;
void Mult(
const mfem::Vector &gravity_state,
mfem::Vector &action
) const override;
[[nodiscard]] GravityFieldOperator &GetGravityFieldOperator() noexcept;
[[nodiscard]] const GravityFieldOperator &
GetGravityFieldOperator() const noexcept;
[[nodiscard]] context::gravity_field::GravityFieldGeometryContext &
GetGeometryContext() noexcept;
[[nodiscard]] const context::gravity_field::
GravityFieldGeometryContext &
GetGeometryContext() const noexcept;
[[nodiscard]] const mfem::Array<int> &
GetGravityTrueOffsets() const noexcept;
private:
void ValidateDisplacement(const mfem::Vector &displacement) const;
void ValidateDensity(const mfem::Vector &density) const;
void ValidateGravityState(const mfem::Vector &gravity_state) const;
private:
GravityFieldOperator &m_gravity_field_operator;
mfem::Array<int> m_gravity_true_offsets;
context::gravity_field::GravityFieldGeometryContext
&m_gravity_field_geometry_context;
};
} // namespace mean_field::operators