33   snes_ewdummy->rtol     = tao->gttol;  in KSPPreSolve_TAOEW_Private()
97   PetscObjectParameterSetDefault(tao, gttol, 0.0);  in TaoParametersInitialize()
438   PetscReal catol, crtol, gatol, grtol, gttol;  in TaoSetFromOptions()  local
471   gttol = tao->gttol;  in TaoSetFromOptions()
474 …s than the norm of the initial gradient times tol", "TaoSetTolerances", tao->gttol, &gttol, NULL));  in TaoSetFromOptions()
475   PetscCall(TaoSetTolerances(tao, gatol, grtol, gttol));  in TaoSetFromOptions()
653     PetscCall(PetscViewerASCIIPrintf(viewer, " gttol=%g\n", (double)tao->gttol));  in TaoView()
854 PetscErrorCode TaoSetTolerances(Tao tao, PetscReal gatol, PetscReal grtol, PetscReal gttol)  in TaoSetTolerances()  argument
860   PetscValidLogicalCollectiveReal(tao, gttol, 4);  in TaoSetTolerances()
876   if (gttol == (PetscReal)PETSC_DETERMINE) {  in TaoSetTolerances()
877     tao->gttol = tao->default_gttol;  in TaoSetTolerances()
878   } else if (gttol != (PetscReal)PETSC_CURRENT) {  in TaoSetTolerances()
879 …PetscCheck(gttol >= 0, PetscObjectComm((PetscObject)tao), PETSC_ERR_ARG_OUTOFRANGE, "Negative gtto…  in TaoSetTolerances()
880     tao->gttol = gttol;  in TaoSetTolerances()
1261 PetscErrorCode TaoGetTolerances(Tao tao, PetscReal *gatol, PetscReal *grtol, PetscReal *gttol)  in TaoGetTolerances()  argument
1267   if (gttol) *gttol = tao->gttol;  in TaoGetTolerances()
2015   PetscReal          gatol = tao->gatol, grtol = tao->grtol, gttol = tao->gttol;  in TaoDefaultConvergenceTest()  local
2036 …} else if (gnorm0 != 0 && ((gttol == 0 && gnorm == 0) || gnorm / gnorm0 < gttol) && cnorm <= crtol…  in TaoDefaultConvergenceTest()
2037 … relative residual norm ||g(X)||/||g(X0)|| = %g < %g\n", (double)(gnorm / gnorm0), (double)gttol));  in TaoDefaultConvergenceTest()