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# DMStagGetGlobalSizes

get global element counts

## Synopsis

    #include "petscdmstag.h"
    #include "petscdmproduct.h"
    PetscErrorCode DMStagGetGlobalSizes(DM dm, PetscInt *M, PetscInt *N, PetscInt *P)

Not Collective

## Input Parameter

- dm - the `DMSTAG` object

## Output Parameters

- M - global element counts in the x direction

- N - global element counts in the y direction

- P - global element counts in the z direction

## Note

Arguments corresponding to higher dimensions are ignored for 1D and 2D grids. These arguments may be set to `NULL` in this case.

## See Also

DMSTAG: Staggered, Structured Grid, `DMSTAG`, `DMStagGetLocalSizes()`, `DMDAGetInfo()`

## Level

beginner

## Location

src/dm/impls/stag/stagutils.c

## Examples

src/dm/impls/stag/tutorials/ex2.c
src/dm/impls/stag/tutorials/ex3.c
src/dm/impls/stag/tutorials/ex6.c
src/dm/impls/stag/tutorials/ex8.c
src/dm/impls/stag/tutorials/ex4.c

Index of all DMStag routines
Table of Contents for all manual pages
Index of all manual pages