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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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