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rAKA akantu
dof_manager_petsc.hh
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/**
* @file dof_manager_petsc.hh
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Tue Aug 18 2015
* @date last modification: Wed Jan 31 2018
*
* @brief PETSc implementation of the dof manager
*
* @section LICENSE
*
* Copyright (©) 2015-2018 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 "dof_manager.hh"
/* -------------------------------------------------------------------------- */
#include <petscis.h>
#include <petscvec.h>
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_DOF_MANAGER_PETSC_HH__
#define __AKANTU_DOF_MANAGER_PETSC_HH__
#define PETSc_call(func, ...) \
do { \
auto ierr = func(__VA_ARGS__); \
if (PetscUnlikely(ierr != 0)) { \
const char * desc; \
PetscErrorMessage(ierr, &desc, nullptr); \
AKANTU_EXCEPTION("Error in PETSc call to \'" << #func \
<< "\': " << desc); \
} \
} while (false)
namespace
akantu
{
class
SparseMatrixPETSc
;
}
namespace
akantu
{
class
DOFManagerPETSc
:
public
DOFManager
{
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public
:
DOFManagerPETSc
(
const
ID
&
id
=
"dof_manager_petsc"
,
const
MemoryID
&
memory_id
=
0
);
DOFManagerPETSc
(
Mesh
&
mesh
,
const
ID
&
id
=
"dof_manager_petsc"
,
const
MemoryID
&
memory_id
=
0
);
virtual
~
DOFManagerPETSc
();
protected
:
void
init
();
struct
DOFDataPETSc
:
public
DOFData
{
explicit
DOFDataPETSc
(
const
ID
&
dof_id
);
/// local equation numbers in PETSc type
IS
is
;
};
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public
:
/// register an array of degree of freedom
void
registerDOFs
(
const
ID
&
dof_id
,
Array
<
Real
>
&
dofs_array
,
DOFSupportType
&
support_type
);
/// Assemble an array to the global residual array
void
assembleToResidual
(
const
ID
&
dof_id
,
const
Array
<
Real
>
&
array_to_assemble
,
Real
scale_factor
=
1.
)
override
;
/**
* Assemble elementary values to the global residual array. The dof number is
* implicitly considered as conn(el, n) * nb_nodes_per_element + d.
* With 0 < n < nb_nodes_per_element and 0 < d < nb_dof_per_node
**/
void
assembleElementalMatricesToMatrix
(
const
ID
&
matrix_id
,
const
ID
&
dof_id
,
const
Array
<
Real
>
&
elementary_mat
,
const
ElementType
&
type
,
const
GhostType
&
ghost_type
,
const
MatrixType
&
elemental_matrix_type
,
const
Array
<
UInt
>
&
filter_elements
)
override
;
void
clearResidual
()
override
;
void
clearMatrix
(
const
ID
&
mtx
)
override
;
void
clearLumpedMatrix
(
const
ID
&
mtx
)
override
;
protected
:
void
getLumpedMatrixPerDOFs
(
const
ID
&
dof_id
,
const
ID
&
lumped_mtx
,
Array
<
Real
>
&
lumped
)
override
;
void
getSolutionPerDOFs
(
const
ID
&
dof_id
,
Array
<
Real
>
&
solution_array
)
override
;
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public
:
/// Get an instance of a new SparseMatrix
SparseMatrix
&
getNewMatrix
(
const
ID
&
matrix_id
,
const
MatrixType
&
matrix_type
)
override
;
/// Get an instance of a new SparseMatrix as a copy of the SparseMatrix
/// matrix_to_copy_id
SparseMatrix
&
getNewMatrix
(
const
ID
&
matrix_id
,
const
ID
&
matrix_to_copy_id
)
override
;
/// Get the reference of an existing matrix
SparseMatrixPETSc
&
getMatrix
(
const
ID
&
matrix_id
);
/// Get the solution array
AKANTU_GET_MACRO_NOT_CONST
(
GlobalSolution
,
this
->
solution
,
Vec
&
);
/// Get the residual array
AKANTU_GET_MACRO_NOT_CONST
(
Residual
,
this
->
residual
,
Vec
&
);
/// Get the blocked dofs array
// AKANTU_GET_MACRO(BlockedDOFs, blocked_dofs, const Array<bool> &);
AKANTU_GET_MACRO
(
MPIComm
,
mpi_communicator
,
MPI_Comm
);
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private
:
typedef
std
::
map
<
ID
,
SparseMatrixPETSc
*>
PETScMatrixMap
;
/// list of matrices registered to the dof manager
PETScMatrixMap
petsc_matrices
;
/// PETSc version of the solution
Vec
solution
;
/// PETSc version of the residual
Vec
residual
;
/// PETSc local to global mapping of dofs
ISLocalToGlobalMapping
is_ltog_map
;
/// Communicator associated to PETSc
MPI_Comm
mpi_communicator
;
static
int
petsc_dof_manager_instances
;
};
}
// akantu
#endif
/* __AKANTU_DOF_MANAGER_PETSC_HH__ */
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