PetscSolverGlobalMatrix.h 2.45 KB
 Thomas Witkowski committed Apr 08, 2011 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 ``````// ============================================================================ // == == // == AMDiS - Adaptive multidimensional simulations == // == == // == http://www.amdis-fem.org == // == == // ============================================================================ // // Software License for AMDiS // // Copyright (c) 2010 Dresden University of Technology // All rights reserved. // Authors: Simon Vey, Thomas Witkowski et al. // // This file is part of AMDiS // // See also license.opensource.txt in the distribution. /** \file PetscSolverGlobalMatrix.h */ #ifndef AMDIS_PETSC_SOLVER_GLOBAL_MATRIX_H #define AMDIS_PETSC_SOLVER_GLOBAL_MATRIX_H #include "AMDiS_fwd.h" #include "parallel/PetscSolver.h" namespace AMDiS { using namespace std; class PetscSolverGlobalMatrix : public PetscSolver { public: PetscSolverGlobalMatrix() : PetscSolver(), d_nnz(NULL), o_nnz(NULL), lastMeshNnz(0), zeroStartVector(false) { GET_PARAMETER(0, "parallel->use zero start vector", "%d", &zeroStartVector); } void fillPetscMatrix(Matrix *mat, SystemVector *vec); void solvePetscMatrix(SystemVector &vec, AdaptInfo *adaptInfo); protected: /// Creates a new non zero pattern structure for the PETSc matrix. void createPetscNnzStructure(Matrix *mat); /// Takes a DOF matrix and sends the values to the global PETSc matrix. void setDofMatrix(DOFMatrix* mat, int dispMult = 1, int dispAddRow = 0, int dispAddCol = 0); /// Takes a DOF vector and sends its values to a given PETSc vector. void setDofVector(Vec& petscVec, DOFVector* vec, int disMult = 1, int dispAdd = 0, bool rankOnly = false); protected: /// Arrays definig the non zero pattern of Petsc's matrix. int *d_nnz, *o_nnz; /** \brief * Stores the mesh change index of the mesh the nnz structure was created for. * Therefore, if the mesh change index is higher than this value, we have to create * a new nnz structure for PETSc matrices, because the mesh has been changed and * therefore also the assembled matrix structure. */ int lastMeshNnz; bool zeroStartVector; }; } #endif ``````