petsc-3.14.5 2021-03-03
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# DMStagGetNumRanks

get number of ranks in each direction in the global grid decomposition

### Synopsis

    PetscErrorCode DMStagGetNumRanks(DM dm,PetscInt *nRanks0,PetscInt *nRanks1,PetscInt *nRanks2)

Not Collective

### Input Parameter

| dm | - the DMStag object

### Output Parameters

| nRanks0,nRanks1,nRanks2 | - number of ranks in each direction in the grid decomposition

### Notes

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, DMStagGetGlobalSizes(), DMStagGetLocalSize(), DMStagSetNumRanks(), DMDAGetInfo()

### Level

intermediate

### Location

src/dm/impls/stag/stagutils.c
Index of all DMSTAG routines
Table of Contents for all manual pages
Index of all manual pages