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perf(allocations): reduced overall allocations by 95%, increaseed jacobian applicatin by 2x

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This commit uses global pre allocated work space to dramatically reduce memory usage and allocation time
This commit is contained in:
Emily Boudreaux
2026-09-10 06:50:56 -04:00
parent b3c04d507a
commit 75cc638739
66 changed files with 207183 additions and 99552 deletions
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15
libmeanfield/interface/operators/prepared_barotropic_closure_operator.cppm
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@@ -2,6 +2,7 @@ module;
#include <cstdint>
#include <expected>
#include <memory>
#include <mfem.hpp>
#include <vector>
@@ -97,6 +98,12 @@ export namespace mean_field::operators {
[[nodiscard]] const context::barotropic::BarotropicClosurePreparationStatistics &
GetContextPreparationStatistics() const noexcept;
template <typename Visitor> void VisitMappedGeometryRules(Visitor &&visitor) const {
for (const ElementPAData &data : m_elements) {
visitor(data.elementId, *data.integrationRule);
}
}
private:
struct ConstructionData;
@@ -132,8 +139,11 @@ export namespace mean_field::operators {
mfem::DofTransformation *enthalpyDofTransformation{nullptr};
mfem::DofTransformation *displacementDofTransformation{nullptr};
mfem::DenseMatrix densityBasis;
mfem::DenseMatrix enthalpyBasis;
const mfem::IntegrationRule *integrationRule{nullptr};
std::shared_ptr<const fem::ScalarReferenceTable> densityBasis;
std::shared_ptr<const fem::ScalarReferenceTable> enthalpyBasis;
std::shared_ptr<const fem::ScalarReferenceTable> displacementBasis;
mfem::DenseMatrix inverseElementJacobians;
mfem::Vector weightedResidual;
@@ -169,7 +179,6 @@ export namespace mean_field::operators {
mutable mfem::Vector m_elementDisplacementVariation;
mutable mfem::Vector m_quadratureDisplacementAction;
mutable mfem::Vector m_elementDisplacementAction;
mutable mfem::DenseMatrix m_referenceDShape;
mutable mfem::DenseMatrix m_referenceDisplacementJacobian;
std::uint64_t m_preparationCount{0};