petsc-3.14.5 2021-03-03
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# DMDALocalInfo

C struct that contains information about a structured grid and a processors 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 Notes - 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

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

### Level

beginner

### Location

src/dm/impls/da/../../../../include/petscdmdatypes.h

### Examples

src/snes/tutorials/ex5.c.html
src/snes/tutorials/ex9.c.html
src/snes/tutorials/ex15.c.html
src/snes/tutorials/ex19.c.html
src/snes/tutorials/ex25.c.html
src/snes/tutorials/ex30.c.html
src/snes/tutorials/ex33.c.html
src/snes/tutorials/ex46.c.html
src/snes/tutorials/ex48.c.html
src/ts/tutorials/ex26.c.html
Index of all DMDA routines
Table of Contents for all manual pages
Index of all manual pages