PETSc version 3.17.0
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# DMGetNumDS

Get the number of discrete systems in the DM

### Synopsis

    #include "petscdm.h"
    #include "petscdmlabel.h"
    #include "petscds.h"
    PetscErrorCode DMGetNumDS(DM dm, PetscInt *Nds)

Not collective

### Input Parameter

| dm | - The DM

### Output Parameter

| Nds | - The number of PetscDS objects

### See Also

DMGetDS(), DMGetCellDS()

### Level

intermediate

### Location

src/dm/interface/dm.c
Index of all DM routines
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Index of all manual pages