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non_linear_solver_petsc.hh
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rAKA akantu
non_linear_solver_petsc.hh
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/**
* @file non_linear_solver_petsc.hh
*
* @author Nicolas Richart
*
* @date creation Tue Jan 01 2019
*
* @brief A Documented file.
*
*
* Copyright (©) 2010-2011 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "non_linear_solver.hh"
/* -------------------------------------------------------------------------- */
#include <petscsnes.h>
/* -------------------------------------------------------------------------- */
#ifndef AKANTU_NON_LINEAR_SOLVER_PETSC_HH_
#define AKANTU_NON_LINEAR_SOLVER_PETSC_HH_
namespace
akantu
{
class
DOFManagerPETSc
;
class
NonLinearSolverPETScCallback
;
class
SolverVectorPETSc
;
}
// namespace akantu
namespace
akantu
{
class
NonLinearSolverPETSc
:
public
NonLinearSolver
{
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public
:
NonLinearSolverPETSc
(
DOFManagerPETSc
&
dof_manager
,
const
NonLinearSolverType
&
non_linear_solver_type
,
const
ID
&
id
=
"non_linear_solver_petsc"
);
~
NonLinearSolverPETSc
()
override
;
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public
:
/// solve the system described by the jacobian matrix, and rhs contained in
/// the dof manager
void
solve
(
SolverCallback
&
callback
)
override
;
/// parse the arguments from the input file
void
parseSection
(
const
ParserSection
&
section
)
override
;
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
protected
:
static
PetscErrorCode
FormFunction
(
SNES
snes
,
Vec
dx
,
Vec
f
,
void
*
ctx
);
static
PetscErrorCode
FormJacobian
(
SNES
snes
,
Vec
dx
,
Mat
J
,
Mat
P
,
void
*
ctx
);
void
set_param
(
const
ID
&
param
,
const
std
::
string
&
value
)
override
;
DOFManagerPETSc
&
dof_manager
;
/// PETSc non linear solver
SNES
snes
;
SNESConvergedReason
reason
;
SolverCallback
*
callback
{
nullptr
};
std
::
unique_ptr
<
SolverVectorPETSc
>
x
;
std
::
unique_ptr
<
NonLinearSolverPETScCallback
>
ctx
;
Int
n_iter
{
0
};
};
namespace
debug
{
class
SNESNotConvergedException
:
public
NLSNotConvergedException
{
public
:
SNESNotConvergedException
(
SNESConvergedReason
reason
,
UInt
niter
,
Real
error
,
Real
absolute_tolerance
,
Real
relative_tolerance
,
UInt
max_iterations
)
:
NLSNotConvergedException
(
relative_tolerance
,
niter
,
error
),
reason
(
reason
),
absolute_tolerance
(
absolute_tolerance
),
max_iterations
(
max_iterations
)
{}
SNESConvergedReason
reason
;
Real
absolute_tolerance
;
UInt
max_iterations
;
};
}
// namespace debug
}
// namespace akantu
#endif
/* AKANTU_NON_LINEAR_SOLVER_PETSC_HH_ */
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