PCFactorSetPivotInBlocks

Determines if pivoting is done while factoring each block with MATBAIJ or MATSBAIJ matrices

Synopsis

#include "petscpc.h" 
PetscErrorCode PCFactorSetPivotInBlocks(PC pc, PetscBool pivot)

Logically Collective

Input Parameters

• pc - the preconditioner context

• pivot - PETSC_TRUE or PETSC_FALSE

Options Database Key

• -pc_factor_pivot_in_blocks <true,false> - Pivot inside matrix dense blocks for MATBAIJ and MATSBAIJ

See Also

KSP: Linear System Solvers, PCLU, PCCHOLESKY, PCILU, PCICC, PCILUSetMatOrdering(), PCFactorSetColumnPivot()

Level

intermediate

Location

src/ksp/pc/impls/factor/factor.c

Implementations

PCFactorSetPivotInBlocks_Factor() in src/ksp/pc/impls/factor/factimpl.c

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Index of all PC routines
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Index of all manual pages