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[WIP] Move iterative solver interface and internals to Thyra #1594

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[WIP] Move iterative solver interface and internals to Thyra #1594

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81b2e98
Work on thyra converters and iterative solver
maxfirmbach Nov 22, 2025
02ebd0b
Add projection preconditioner based on thyra
maxfirmbach Dec 4, 2025
7a0d0a3
Post cleanup preconditioner interface
maxfirmbach Dec 4, 2025
dbc0bd1
Multi status test with Belos
maxfirmbach Dec 6, 2025
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58 changes: 0 additions & 58 deletions src/core/linalg/src/sparse/4C_linalg_projected_precond.cpp
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201 changes: 0 additions & 201 deletions src/core/linalg/src/sparse/4C_linalg_projected_precond.hpp
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1 change: 1 addition & 0 deletions src/core/linalg/src/sparse/4C_linalg_sparsematrix.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@

#include <Epetra_CrsMatrix.h>
#include <Epetra_FECrsMatrix.h>
#include <Thyra_EpetraLinearOp.hpp>


FOUR_C_NAMESPACE_OPEN
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1 change: 1 addition & 0 deletions src/core/linalg/src/sparse/4C_linalg_sparseoperator.hpp
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Expand Up @@ -16,6 +16,7 @@
#include "4C_utils_shared_ptr_from_ref.hpp"

#include <Epetra_Operator.h>
#include <Thyra_LinearOpBase_decl.hpp>

#include <memory>
#include <vector>
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4 changes: 2 additions & 2 deletions src/core/linear_solver/src/amgnxn/4C_linear_solver_amgnxn_preconditioner.cpp
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Expand Up @@ -34,12 +34,12 @@ Core::LinearSolver::AmGnxnPreconditioner::AmGnxnPreconditioner(Teuchos::Paramete

/*------------------------------------------------------------------------------*/
/*------------------------------------------------------------------------------*/

/*
std::shared_ptr<Epetra_Operator> Core::LinearSolver::AmGnxnPreconditioner::prec_operator() const
{
return p_;
}

*/
/*------------------------------------------------------------------------------*/
/*------------------------------------------------------------------------------*/

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6 changes: 5 additions & 1 deletion src/core/linear_solver/src/amgnxn/4C_linear_solver_amgnxn_preconditioner.hpp
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Expand Up @@ -39,7 +39,11 @@ namespace Core::LinearSolver
virtual void setup(std::shared_ptr<Core::LinAlg::BlockSparseMatrixBase> A);

/// linear operator used for preconditioning
std::shared_ptr<Epetra_Operator> prec_operator() const override;
Teuchos::RCP<const Thyra::LinearOpBase<double>> prec_operator() const override
{
FOUR_C_THROW("One should not end up here.");
}


private:
// Private variables
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