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perf(jacobian-action): major updates to jacobian action application by removing redudant quadrature work. ~5x increase in speed

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This commit is contained in:
Emily Boudreaux
2026-09-02 17:01:50 -04:00
parent 85500fef3b
commit 25510008dd
74 changed files with 8967 additions and 814 deletions
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19
libmeanfield/interface/operators/prepared_gravity_source.cppm
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@@ -22,6 +22,11 @@ export namespace mean_field::operators {
const mfem::Vector &density,
mfem::Vector &action
) const override;
void MultDisplacementVariationTrue(
const mfem::Vector &densityTrue,
const mfem::Vector &displacementVariationTrue,
mfem::Vector &actionVariationTrue
) const;
[[nodiscard]] bool IsPrepared() const noexcept;
[[nodiscard]] std::uint64_t GetPreparationCount() const noexcept;
@@ -41,13 +46,18 @@ export namespace mean_field::operators {
mfem::Array<int> density_dofs;
mfem::Array<int> potential_dofs;
mfem::Array<int> displacement_dofs;
mfem::DofTransformation *density_dof_transformation{nullptr};
mfem::DofTransformation *potential_dof_transformation{nullptr};
mfem::DofTransformation *displacement_dof_transformation{nullptr};
const mfem::IntegrationRule *integration_rule{nullptr};
// Rows are quadrature points; columns are element DOFs.
mfem::DenseMatrix density_basis;
mfem::DenseMatrix potential_basis;
mfem::DenseMatrix inverse_element_jacobians;
// Contains quadrature weight, mesh Jacobian, mapped Jacobian,
// and 4*pi*G.
@@ -67,6 +77,15 @@ export namespace mean_field::operators {
mutable mfem::Vector m_density_true;
mutable mfem::Vector m_potential_true;
mutable mfem::Vector m_action_true;
mutable mfem::Vector m_density_local;
mutable mfem::Vector m_displacement_variation_local;
mutable mfem::Vector m_local_variation_action;
mutable mfem::Vector m_element_density;
mutable mfem::Vector m_element_displacement_variation;
mutable mfem::Vector m_quadrature_variation_action;
mutable mfem::Vector m_element_variation_action;
mutable mfem::DenseMatrix m_reference_displacement_dshape;
mutable mfem::DenseMatrix m_reference_displacement_jacobian;
mfem::Vector m_displacement_true;
std::uint64_t m_preparation_count{0};