petsc-master 2019-10-19
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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(), DMStagSetNumRank(), 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