PCPARMSSetSolveTolerances#

Sets the convergence tolerance and the maximum iterations for the inner GMRES solver, when the Schur global preconditioner is used.

Synopsis#

#include "petscpc.h" 
PetscErrorCode PCPARMSSetSolveTolerances(PC pc, PetscReal tol, PetscInt maxits)

Collective

Input Parameters#

pc - the preconditioner context
tol - the convergence tolerance
maxits - the maximum number of iterations to use

Options Database Keys#

-pc_parms_solve_tol - set the tolerance for local solve
-pc_parms_max_it - set the maximum number of inner iterations

Note#

See the pARMS functions parms_PCSetInnerEps() and parms_PCSetInnerMaxits() for more information.

See Also#

PCPARMS, PCPARMSSetSolveRestart()

Level#

intermediate

Location#

src/ksp/pc/impls/parms/parms.c

Implementations#

PCPARMSSetSolveTolerances_PARMS in src/ksp/pc/impls/parms/parms.c

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