DMDALocalInfo#

C struct that contains information about a structured grid and a processes logical location in it.

Synopsis#

typedef struct {
  PetscInt        dim, dof, sw;
  PetscInt        mx, my, mz;    /* global number of grid points in each direction */
  PetscInt        xs, ys, zs;    /* starting point of this processor, excluding ghosts */
  PetscInt        xm, ym, zm;    /* number of grid points on this processor, excluding ghosts */
  PetscInt        gxs, gys, gzs; /* starting point of this processor including ghosts */
  PetscInt        gxm, gym, gzm; /* number of grid points on this processor including ghosts */
  DMBoundaryType  bx, by, bz;    /* type of ghost nodes at boundary */
  DMDAStencilType st;
  DM              da;
} DMDALocalInfo;

Fortran Note#

This should be declared as

`DMDALocalInfo` :: info(DMDA_LOCAL_INFO_SIZE)

and the entries accessed via

    info(DMDA_LOCAL_INFO_DIM)
    info(DMDA_LOCAL_INFO_DOF) etc.

The entries bx,by,bz, st, and da are not accessible from Fortran.

See Also#

DM Basics, DMDA, DMDACreate1d(), DMDACreate2d(), DMDACreate3d(), DMDestroy(), DM, DMDAGetLocalInfo(), DMDAGetInfo()

Level#

beginner

Location#

include/petscdmdatypes.h

Examples#

src/dm/tutorials/ex2.c
src/snes/tutorials/ex9.c
src/snes/tutorials/ex40f90.F90
src/dm/tutorials/ex14.c
src/dm/tutorials/ex51.c
src/snes/tutorials/ex15.c
src/dm/tutorials/ex25.c
src/snes/tutorials/ex19.c
src/snes/tutorials/ex5f.F90
src/snes/tutorials/ex35.c


Index of all DMDA routines
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