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solver_petsc.hh
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/**
* @file solver_petsc.hh
*
* @author Alejandro M. Aragón <alejandro.aragon@epfl.ch>
* @author Aurelia Isabel Cuba Ramos <aurelia.cubaramos@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Tue May 13 2014
* @date last modification: Mon Jun 19 2017
*
* @brief Solver class interface for the petsc solver
*
* @section LICENSE
*
* Copyright (©) 2014-2018 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 "sparse_solver.hh"
/* -------------------------------------------------------------------------- */
#include <petscksp.h>
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_SOLVER_PETSC_HH__
#define __AKANTU_SOLVER_PETSC_HH__
namespace akantu {
class SparseMatrixPETSc;
class DOFManagerPETSc;
} // namespace akantu
namespace akantu {
class SolverPETSc : public SparseSolver {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
SolverPETSc(DOFManagerPETSc & dof_manager, const ID & matrix_id,
const ID & id = "solver_petsc", const MemoryID & memory_id = 0);
virtual ~SolverPETSc();
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
/// create the solver context and set the matrices
virtual void setOperators();
virtual void solve();
private:
/// DOFManager correctly typed
DOFManagerPETSc & dof_manager;
/// PETSc linear solver
KSP ksp;
/// Matrix defining the system of equations
SparseMatrixPETSc & matrix;
/// specify if the petsc_data is initialized or not
bool is_petsc_data_initialized;
};
// SolverPETSc(int argc, char *argv[]) : allocated_(false) {
// /*
// Set linear solver defaults for this problem (optional).
// - By extracting the KSP and PC contexts from the KSP context,
// we can then directly call any KSP and PC routines to set
// various options.
// - The following four statements are optional; all of these
// parameters could alternatively be specified at runtime via
// KSPSetFromOptions();
// */
// // ierr = KSPGetPC(ksp_,&pc);CHKERRCONTINUE(ierr);
// // ierr = PCSetType(pc,PCILU);CHKERRCONTINUE(ierr);
// // ierr = PCSetType(pc,PCJACOBI);CHKERRCONTINUE(ierr);
// ierr =
// KSPSetTolerances(ksp_,1.e-5,PETSC_DEFAULT,PETSC_DEFAULT,PETSC_DEFAULT);CHKERRCONTINUE(ierr);
// }
// //! Overload operator() to solve system of linear equations
// sparse_vector_type operator()(const sparse_matrix_type& AA, const
// sparse_vector_type& bb);
// //! Overload operator() to obtain reaction vector
// sparse_vector_type operator()(const sparse_matrix_type& Kpf, const
// sparse_matrix_type& Kpp, const sparse_vector_type& Up);
// //! Overload operator() to obtain the addition two vectors
// sparse_vector_type operator()(const sparse_vector_type& aa, const
// sparse_vector_type& bb);
// value_type norm(const sparse_matrix_type& aa, Element_insertion_type it =
// Add_t);
// value_type norm(const sparse_vector_type& aa, Element_insertion_type it =
// Add_t);
// // NOTE: the destructor will return an error if it is called after
// MPI_Finalize is
// // called because it uses collect communication to free-up allocated
// memory.
// ~SolverPETSc() {
// static bool exit = false;
// if (!exit) {
// // add finalize PETSc function at exit
// atexit(finalize);
// exit = true;
// }
// if (allocated_) {
// PetscErrorCode ierr = MatDestroy(&A_);CHKERRCONTINUE(ierr);
// ierr = VecDestroy(&x_);CHKERRCONTINUE(ierr);
// ierr = KSPDestroy(&ksp_);CHKERRCONTINUE(ierr);
// }
// }
// /* from the PETSc library, these are the options that can be passed
// to the command line
// Options Database Keys
// -options_table - Calls PetscOptionsView()
// -options_left - Prints unused options that remain in
// the
// database
// -objects_left - Prints list of all objects that have not
// been freed
// -mpidump - Calls PetscMPIDump()
// -malloc_dump - Calls PetscMallocDump()
// -malloc_info - Prints total memory usage
// -malloc_log - Prints summary of memory usage
// Options Database Keys for Profiling
// -log_summary [filename] - Prints summary of flop and timing
// information to screen.
// If the filename is specified the summary is written to the file. See
// PetscLogView().
// -log_summary_python [filename] - Prints data on of flop and timing
// usage
// to a file or screen.
// -log_all [filename] - Logs extensive profiling information
// See
// PetscLogDump().
// -log [filename] - Logs basic profiline information See
// PetscLogDump().
// -log_sync - Log the synchronization in scatters,
// inner products and norms
// -log_mpe [filename] - Creates a logfile viewable by the utility
// Upshot/Nupshot (in MPICH distribution)
// }
// }
// };
} // namespace akantu
#endif /* __AKANTU_SOLVER_PETSC_HH__ */

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