border.hpp File Reference

#include <span>
#include "serif/backend/mfem/solver/preconditioner/coupling.hpp"
#include "serif/solver/preconditioner/strategies/inverse/dense.hpp"

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Namespaces
namespace	serif
namespace	serif::solver
namespace	serif::solver::preconditioner
namespace	serif::solver::preconditioner::backend
namespace	serif::solver::preconditioner::backend::mfem

Functions
std::expected< Inverse, Failure >	serif::solver::preconditioner::backend::mfem::try_bordered_inverse (Inverse fields, TwoBlockCouplings couplings, OperatorHandle border_diagonal, const strategies::inverse::DenseDirect &options={})
	Probe and factor the complete small border Schur complement, retaining nonzero border-to-border couplings.
std::expected< OperatorHandle, Failure >	serif::solver::preconditioner::backend::mfem::try_restrict_operator (OperatorHandle operation, std::span< const int > rows, std::span< const int > columns)
	Select equation rows and unknown columns without assuming their coordinate orders coincide.