PETSc version 3.15.5
KSPCGSetType
Sets the variant of the conjugate gradient method to use for solving a linear system with a complex coefficient matrix. This option is irrelevant when solving a real system. 
Synopsis
#include "petscksp.h" 
PetscErrorCode  KSPCGSetType(KSP ksp,KSPCGType type)
Logically Collective on ksp
Input Parameters
|  | ksp | - the iterative context | 
|  | type | - the variant of CG to use, one of | 
      KSP_CG_HERMITIAN - complex, Hermitian matrix (default)
      KSP_CG_SYMMETRIC - complex, symmetric matrix
Options Database Keys
|  | -ksp_cg_hermitian | - Indicates Hermitian matrix | 
|  | -ksp_cg_symmetric | - Indicates symmetric matrix | 
Note
By default, the matrix is assumed to be complex, Hermitian.
See Also
 KSP, KSPCG
Level
intermediate
Location
src/ksp/ksp/impls/cg/cgtype.c
Implementations
KSPCGSetType_CG in src/ksp/ksp/impls/cg/cg.c
KSPCGSetType_CGNE in src/ksp/ksp/impls/cg/cgne/cgne.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages