Emily Boudreaux
cb20faeb3d
The test suite is extensive. Note that LLMs were used to aid in the development of the test suite. All LLM generated code was manually reviewed.
39 lines
2.1 KiB
C++
39 lines
2.1 KiB
C++
#pragma once
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#include "mfem/linalg/densemat.hpp"
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#include "mfem/linalg/vector.hpp"
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#include "serif/backend/mfem/mapping/domain_mapper.hpp"
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namespace serif::tests {
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/**
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* @brief Differentiate the volume map along one direction through the solver's direction-variation path.
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* @note Samples the direction's value and canonical-element gradient at the point and forms the inverse mesh
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* Jacobian from the prepared context, as the geometry derivatives do.
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*/
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[[nodiscard]] inline serif::mapping::MappingStatus evaluate_volume_variation(
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const serif::mapping::DomainMapper& mapper,
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const serif::mapping::ElementMappingData& element_data,
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const serif::mapping::ElementDisplacementData& direction,
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::mfem::ElementTransformation& transformation,
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const ::mfem::IntegrationPoint& ip,
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const serif::mapping::VolumeMappingContext& context,
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serif::mapping::DMWorkspace& workspace,
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serif::mapping::VolumeMappingVariation& variation,
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const serif::mapping::CompactificationPointData* compactification_sample = nullptr
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) {
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const ::mfem::FiniteElement& element = direction.get_element();
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::mfem::Vector shape(element.GetDof());
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::mfem::DenseMatrix shape_gradient(element.GetDof(), element.GetDim());
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element.CalcShape(ip, shape);
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element.CalcDShape(ip, shape_gradient);
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::mfem::Vector value(direction.get_dimension());
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direction.get_dof_matrix().MultTranspose(shape, value);
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::mfem::DenseMatrix gradient(direction.get_dimension(), element.GetDim());
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::mfem::MultAtB(direction.get_dof_matrix(), shape_gradient, gradient);
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::mfem::DenseMatrix inverse_mesh_jacobian(context.mapping.mapping_jacobian.Height());
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::mfem::Mult(context.quadrature.J_element_to_physical_inverse, context.mapping.mapping_jacobian, inverse_mesh_jacobian);
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return mapper.evaluate_volume_direction_variation(element_data, direction, transformation, ip, context, workspace, variation,
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serif::mapping::DMReferenceDisplacementSample{value, gradient}, compactification_sample, inverse_mesh_jacobian);
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}
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}
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