petsc-3.14.5 2021-03-03
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# ISLocalToGlobalMappingGetSize

Gets the local size of a local to global mapping

### Synopsis

    #include "petscis.h"
    PetscErrorCode  ISLocalToGlobalMappingGetSize(ISLocalToGlobalMapping mapping,PetscInt *n)

Not Collective

### Input Parameter

| ltog | - local to global mapping

### Output Parameter

| n | - the number of entries in the local mapping, ISLocalToGlobalMappingGetIndices() returns an array of this length

### See Also

ISLocalToGlobalMappingDestroy(), ISLocalToGlobalMappingCreate()

### Level

advanced

### Location

src/vec/is/utils/isltog.c
Index of all IS routines
Table of Contents for all manual pages
Index of all manual pages