petsc-3.14.5 2021-03-03
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# MatGetVariableBlockSizes

Gets a diagonal blocks of the matrix that need not be of the same size

### Synopsis

    #include "petscmat.h"
    PetscErrorCode MatGetVariableBlockSizes(Mat mat,PetscInt *nblocks,const PetscInt **bsizes)

Logically Collective on Mat

### Input Parameters

| mat | - the matrix

### Output Parameters

| nblocks | - the number of blocks on this process
| bsizes | - the block sizes

Notes: Currently not supported from Fortran

### See Also

MatCreateSeqBAIJ(), MatCreateBAIJ(), MatGetBlockSize(), MatSetBlockSizes(), MatGetBlockSizes(), MatSetVariableBlockSizes()

### Level

intermediate

### Location

src/mat/interface/matrix.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages