PETSc version 3.17.4
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# MatSTRUMPACKSetHSSMaxRank

Set STRUMPACK maximum HSS rank

### Synopsis

    #include "petscmat.h"
    PetscErrorCode MatSTRUMPACKSetHSSMaxRank(Mat F,PetscInt hssmaxrank)

Logically Collective on Mat

### Input Parameters

| F | - the factored matrix obtained by calling MatGetFactor() from PETSc-STRUMPACK interface
| hssmaxrank | - maximum rank used in low-rank approximation

### Options Database

| -mat_strumpack_max_rank | - Maximum rank in HSS compression, 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

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