PETSc version 3.17.4
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# ISBlockGetSize

Returns the global number of blocks in the index set.

### Synopsis

    #include "petscis.h"
    PetscErrorCode  ISBlockGetSize(IS is,PetscInt *size)

Not Collective

### Input Parameter

| is | - the index set

### Output Parameter

| size | - the global number of blocks

### See Also

ISGetBlockSize(), ISBlockGetLocalSize(), ISGetSize(), ISCreateBlock(), ISBLOCK

### Level

intermediate

### Location

src/vec/is/is/impls/block/block.c

### Implementations

ISBlockGetSize_Block in src/vec/is/is/impls/block/block.c
Index of all IS routines
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