Actual source code: mpidense.h
petsc-3.10.5 2019-03-28
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      2:  #include <../src/mat/impls/dense/seq/dense.h>

      4: /*  Data stuctures for basic parallel dense matrix  */

      6: typedef struct { /* used by MatMatMult_MPIDense_MPIDense() */
      7:   Mat            Ae,Be,Ce;           /* matrix in Elemental format */
      8:   PetscErrorCode (*destroy)(Mat);
      9: } Mat_MatMultDense;

     11: typedef struct { /* used by MatTransposeMatMult_MPIDense_MPIDense() */
     12:   PetscScalar    *sendbuf,*atbarray;
     13:   PetscMPIInt    *recvcounts;
     14:   PetscErrorCode (*destroy)(Mat);
     15: } Mat_TransMatMultDense;

     17: typedef struct {
     18:   PetscInt    nvec;                     /* this is the n size for the vector one multiplies with */
     19:   Mat         A;                        /* local submatrix */
     20:   PetscMPIInt size;                     /* size of communicator */
     21:   PetscMPIInt rank;                     /* rank of proc in communicator */

     23:   /* The following variables are used for matrix assembly */
     24:   PetscBool   donotstash;               /* Flag indicationg if values should be stashed */
     25:   MPI_Request *send_waits;              /* array of send requests */
     26:   MPI_Request *recv_waits;              /* array of receive requests */
     27:   PetscInt    nsends,nrecvs;           /* numbers of sends and receives */
     28:   PetscScalar *svalues,*rvalues;       /* sending and receiving data */
     29:   PetscInt    rmax;                     /* maximum message length */

     31:   /* The following variables are used for matrix-vector products */
     32:   Vec        lvec;                      /* local vector */
     33:   VecScatter Mvctx;                     /* scatter context for vector */
     34:   PetscBool  roworiented;               /* if true, row oriented input (default) */

     36:   Mat_MatTransMatMult   *atb;           /* used by MatTransposeMatMult_MPIAIJ_MPIDense */
     37:   Mat_TransMatMultDense *atbdense;      /* used by MatTransposeMatMult_MPIDense_MPIDense */
     38:   Mat_MatMultDense      *abdense;       /* used by MatMatMult_MPIDense_MPIDense */
     39: } Mat_MPIDense;

     41: PETSC_INTERN PetscErrorCode MatLoad_MPIDense(Mat,PetscViewer);
     42: PETSC_INTERN PetscErrorCode MatSetUpMultiply_MPIDense(Mat);
     43: PETSC_INTERN PetscErrorCode MatCreateSubMatrices_MPIDense(Mat,PetscInt,const IS[],const IS[],MatReuse,Mat *[]);
     44: PETSC_INTERN PetscErrorCode MatEqual_MPIDense(Mat,Mat,PetscBool*);
     45: PETSC_INTERN PetscErrorCode MatMatMultSymbolic_MPIDense_MPIDense(Mat,Mat,PetscReal,Mat*);
     46: PETSC_INTERN PetscErrorCode MatMatMult_MPIAIJ_MPIDense(Mat,Mat,MatReuse,PetscReal,Mat*);
     47: PETSC_INTERN PetscErrorCode MatMatMultSymbolic_MPIAIJ_MPIDense(Mat,Mat,PetscReal,Mat*);
     48: PETSC_INTERN PetscErrorCode MatMatMultNumeric_MPIAIJ_MPIDense(Mat,Mat,Mat);
     49: PETSC_INTERN PetscErrorCode MatTransposeMatMult_MPIDense_MPIDense(Mat,Mat,MatReuse,PetscReal,Mat*);
     50: PETSC_INTERN PetscErrorCode MatTransposeMatMultSymbolic_MPIDense_MPIDense(Mat,Mat,PetscReal,Mat*);
     51: PETSC_INTERN PetscErrorCode MatTransposeMatMultNumeric_MPIDense_MPIDense(Mat,Mat,Mat);

     53: #if defined(PETSC_HAVE_ELEMENTAL)
     54: PETSC_INTERN PetscErrorCode MatMatMult_MPIDense_MPIDense(Mat,Mat,MatReuse,PetscReal,Mat*);
     55: PETSC_INTERN PetscErrorCode MatMatMultNumeric_MPIDense_MPIDense(Mat,Mat,Mat);
     56: #endif