1 #ifndef PETSC_PACKIMPL_H 2 #define PETSC_PACKIMPL_H 3 4 #include <petscdmcomposite.h> /*I "petscdmcomposite.h" I*/ 5 #include <petsc/private/dmimpl.h> /*I "petscdm.h" I*/ 6 7 /* 8 rstart is where an array/subvector starts in the global parallel vector, so arrays 9 rstarts are meaningless (and set to the previous one) except on the processor where the array lives 10 */ 11 12 struct DMCompositeLink { 13 struct DMCompositeLink *next; 14 PetscInt n; /* number of owned */ 15 PetscInt rstart; /* rstart is relative to this process */ 16 PetscInt grstart; /* grstart is relative to all processes */ 17 PetscInt nlocal; 18 19 /* only used for DMCOMPOSITE_DM */ 20 PetscInt *grstarts; /* global row for first unknown of this DM on each process */ 21 DM dm; 22 }; 23 24 typedef struct { 25 PetscInt n, N, rstart; /* rstart is relative to all processors, n unknowns owned by this process, N is total unknowns */ 26 PetscInt nghost; /* number of all local entries (includes DMDA ghost points) */ 27 PetscInt nDM, nmine; /* how many DM's and separate redundant arrays used to build DM(nmine is ones on this process) */ 28 PetscBool setup; /* after this is set, cannot add new links to the DM*/ 29 struct DMCompositeLink *next; 30 31 PetscErrorCode (*FormCoupleLocations)(DM, Mat, PetscInt *, PetscInt *, PetscInt, PetscInt, PetscInt, PetscInt); 32 } DM_Composite; 33 34 PETSC_INTERN PetscErrorCode DMCreateMatrix_Composite(DM, Mat *); 35 36 #endif // PETSC_PACKIMPL_H 37