/usr/include/trilinos/MueLu_SolverBase.hpp is in libtrilinos-muelu-dev 12.4.2-2.
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//
// ***********************************************************************
//
// MueLu: A package for multigrid based preconditioning
// Copyright 2012 Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// Questions? Contact
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// Andrey Prokopenko (aprokop@sandia.gov)
// Ray Tuminaro (rstumin@sandia.gov)
//
// ***********************************************************************
//
// @HEADER
#ifndef MUELU_SOLVERBASE_HPP
#define MUELU_SOLVERBASE_HPP
#include <Xpetra_MultiVector_fwd.hpp>
#include <Xpetra_Matrix_fwd.hpp>
#include "MueLu_ConfigDefs.hpp"
#include "MueLu_BaseClass.hpp"
#include "MueLu_Constraint_fwd.hpp"
namespace MueLu {
/*!
@class SolverBase class.
@brief Base class for energy-minimization iterative solvers
*/
template <class Scalar = double,
class LocalOrdinal = int,
class GlobalOrdinal = LocalOrdinal,
class Node = KokkosClassic::DefaultNode::DefaultNodeType>
class SolverBase : public BaseClass {
#undef MUELU_SOLVERBASE_SHORT
#include "MueLu_UseShortNames.hpp"
public:
//@{ Constructors/Destructors.
SolverBase() {}
virtual ~SolverBase() {}
//@}
//! @name Iterate methods.
//@{
/*! Iterate
\param A -- Energy matrix
\param C -- Constraints
\param P0 -- Initial guess
\param P -- Resulting prolongator
\note We assume that P0 has correct sparsity pattern
*/
virtual void Iterate(const Matrix& A, const Constraint& C, const Matrix& P0, RCP<Matrix>& P) const = 0;
//@}
}; //class SolverBase
} //namespace MueLu
#define MUELU_SOLVERBASE_SHORT
#endif //ifndef MUELU_SOLVERBASE_HPP
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