KSPBCGSLSetUsePseudoinverse

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

Synopsis

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

Logically Collective

Input Parameters

• ksp - iterative context of type KSPCBGSL

• use_pinv - set to PETSC_TRUE when using pseudoinverse

Options Database Key

• -ksp_bcgsl_pinv - use pseudoinverse

See Also

KSP: Linear System Solvers, KSPBCGSLSetEll(), KSP, KSPCBGSL, KSPBCGSLSetPol(), KSPBCGSLSetXRes()

Level

intermediate

Location

src/ksp/ksp/impls/bcgsl/bcgsl.c

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