petsc-3.14.5 2021-03-03
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# KSPBCGSLSetUsePseudoinverse

Use pseudoinverse (via SVD) to solve polynomial part of update

### Synopsis

    #include "petscksp.h"
    PetscErrorCode KSPBCGSLSetUsePseudoinverse(KSP ksp,PetscBool use_pinv)

Logically Collective on ksp

### Input Parameters

| ksp | - iterative context obtained from KSPCreate
| use_pinv | - set to PETSC_TRUE when using pseudoinverse

### Options Database Keys

| -ksp_bcgsl_pinv | - use pseudoinverse

### See Also

KSPBCGSLSetEll(), KSP

### Level

intermediate

### Location

src/ksp/ksp/impls/bcgsl/bcgsl.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages