PETSc version 3.17.4
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# MatSTRUMPACKSetHSSLeafSize

Set STRUMPACK HSS leaf size

### Synopsis

    #include "petscmat.h"
    PetscErrorCode MatSTRUMPACKSetHSSLeafSize(Mat F,PetscInt leaf_size)

Logically Collective on Mat

### Input Parameters

| F | - the factored matrix obtained by calling MatGetFactor() from PETSc-STRUMPACK interface
| leaf_size | - Size of diagonal blocks in HSS approximation

### Options Database

| -mat_strumpack_leaf_size | - Size of diagonal blocks in HSS approximation, when using pctype ilu (None)

### References

| * | - STRUMPACK manual

### See Also

MatGetFactor()

### Level

beginner

### Location

src/mat/impls/aij/mpi/strumpack/strumpack.c

### Examples

src/ksp/ksp/tutorials/ex52.c.html

### Implementations

MatSTRUMPACKSetHSSLeafSize_STRUMPACK in src/mat/impls/aij/mpi/strumpack/strumpack.c
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