Files
MeanField/libmeanfield/interface/integrators/gravity.cppm

46 lines
1.6 KiB
C++

module;
#include <cstdint>
#include <mfem.hpp>
export module mean_field:integrators.gravity;
import :mapping.domain_mapper;
export namespace mean_field::integrators {
enum class GravityForceJacobianMode : std::uint8_t {
minimal,
field_coupled,
exact
};
class GravityMomentumIntegrator
: public mfem::BlockNonlinearFormIntegrator {
public:
explicit GravityMomentumIntegrator(
const mapping::DomainMapper &map,
GravityForceJacobianMode jacobian_mode =
GravityForceJacobianMode::field_coupled
);
void SetJacobianMode(GravityForceJacobianMode jacobian_mode);
void SetIntegrationRule(const mfem::IntegrationRule &integration_rule);
[[nodiscard]] GravityForceJacobianMode GetJacobianMode() const;
void AssembleElementVector(
const mfem::Array<const mfem::FiniteElement *> &el,
mfem::ElementTransformation &Tr,
const mfem::Array<const mfem::Vector *> &elfun,
const mfem::Array<mfem::Vector *> &elvec
) override;
void AssembleElementGrad(
const mfem::Array<const mfem::FiniteElement *> &el,
mfem::ElementTransformation &Tr,
const mfem::Array<const mfem::Vector *> &elfun,
const mfem::Array2D<mfem::DenseMatrix *> &elmats
) override;
private:
const mapping::DomainMapper &m_map;
GravityForceJacobianMode m_jacobian_mode;
const mfem::IntegrationRule *m_integration_rule{nullptr};
};
} // namespace mean_field::integrators