Emily Boudreaux
75cc638739
This commit uses global pre allocated work space to dramatically reduce memory usage and allocation time
43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
module;
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#include <mfem.hpp>
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#include <vector>
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export module mean_field:mapping.prepared_cache;
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import :mapping.types;
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export namespace mean_field::mapping {
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// Flat, owning storage for prepared volume contexts. Load into reusable
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// workspaces: no MFEM buffers or pointer aliases are owned per quadrature
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// point. The layout retains every public context field without recomputing
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// inverses or changing the mapper's numerical contract.
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class VolumeMappingCache {
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public:
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void SetSize(
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int point_count,
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int dimension
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);
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void Store(
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int point,
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const VolumeMappingContext &context
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);
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void Load(
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int point,
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VolumeMappingContext &context
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) const;
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void LoadInverseJacobian(
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int point,
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mfem::DenseMatrix &inverse
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) const;
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[[nodiscard]] int GetPointCount() const;
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[[nodiscard]] int GetDimension() const;
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private:
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[[nodiscard]] const double *GetPointData(int point) const;
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std::vector<double> m_data;
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int m_point_count{0};
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int m_dimension{0};
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int m_point_stride{0};
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};
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} // namespace mean_field::mapping
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