51   PetscReal norm_d = 0.0, e_min;  in TaoSolve_NLS()  local
282       PetscCall(KSPCGGetNormD(tao->ksp, &norm_d));  in TaoSolve_NLS()
286         if (norm_d > 0.0) {  in TaoSolve_NLS()
287           tao->trust = norm_d;  in TaoSolve_NLS()
306           PetscCall(KSPCGGetNormD(tao->ksp, &norm_d));  in TaoSolve_NLS()
308           PetscCheck(norm_d != 0.0, PETSC_COMM_SELF, PETSC_ERR_PLIB, "Initial direction zero");  in TaoSolve_NLS()
535             tao->trust = nlsP->omega1 * PetscMin(norm_d, tao->trust);  in TaoSolve_NLS()
538             tao->trust = nlsP->omega2 * PetscMin(norm_d, tao->trust);  in TaoSolve_NLS()
542               tao->trust = nlsP->omega3 * PetscMin(norm_d, tao->trust);  in TaoSolve_NLS()
544               tao->trust = PetscMax(nlsP->omega3 * norm_d, tao->trust);  in TaoSolve_NLS()
548             tao->trust = PetscMax(nlsP->omega4 * norm_d, tao->trust);  in TaoSolve_NLS()
551             tao->trust = PetscMax(nlsP->omega5 * norm_d, tao->trust);  in TaoSolve_NLS()
555           tao->trust = nlsP->omega1 * PetscMin(norm_d, tao->trust);  in TaoSolve_NLS()
568             tao->trust = nlsP->alpha1 * PetscMin(tao->trust, norm_d);  in TaoSolve_NLS()
571               tao->trust = nlsP->alpha1 * PetscMin(tao->trust, norm_d);  in TaoSolve_NLS()
585                 tao->trust = nlsP->alpha1 * PetscMin(tao->trust, norm_d);  in TaoSolve_NLS()
588                 tao->trust = nlsP->alpha2 * PetscMin(tao->trust, norm_d);  in TaoSolve_NLS()
592                   tao->trust = nlsP->alpha3 * PetscMin(norm_d, tao->trust);  in TaoSolve_NLS()
594                   tao->trust = PetscMax(nlsP->alpha3 * norm_d, tao->trust);  in TaoSolve_NLS()
598                 tao->trust = PetscMax(nlsP->alpha4 * norm_d, tao->trust);  in TaoSolve_NLS()
601                 tao->trust = PetscMax(nlsP->alpha5 * norm_d, tao->trust);  in TaoSolve_NLS()
607           tao->trust = nlsP->alpha1 * PetscMin(norm_d, tao->trust);  in TaoSolve_NLS()
618             tao->trust = nlsP->gamma1 * PetscMin(tao->trust, norm_d);  in TaoSolve_NLS()
621               tao->trust = nlsP->gamma1 * PetscMin(tao->trust, norm_d);  in TaoSolve_NLS()
639                   tao->trust = PetscMax(tao->trust, nlsP->gamma3 * norm_d);  in TaoSolve_NLS()
641                   tao->trust = PetscMax(tao->trust, nlsP->gamma4 * norm_d);  in TaoSolve_NLS()
643                   tao->trust = PetscMax(tao->trust, tau_max * norm_d);  in TaoSolve_NLS()
649                   tao->trust = nlsP->gamma2 * PetscMin(tao->trust, norm_d);  in TaoSolve_NLS()
651                   tao->trust = PetscMax(tao->trust, nlsP->gamma3 * norm_d);  in TaoSolve_NLS()
653                   tao->trust = tau_max * PetscMin(tao->trust, norm_d);  in TaoSolve_NLS()
655                   tao->trust = PetscMax(tao->trust, tau_max * norm_d);  in TaoSolve_NLS()
660                   tao->trust = nlsP->gamma2 * PetscMin(tao->trust, norm_d);  in TaoSolve_NLS()
662                   tao->trust = nlsP->gamma1 * PetscMin(tao->trust, norm_d);  in TaoSolve_NLS()
664                   tao->trust = nlsP->gamma1 * PetscMin(tao->trust, norm_d);  in TaoSolve_NLS()
666                   tao->trust = tau_1 * PetscMin(tao->trust, norm_d);  in TaoSolve_NLS()
668                   tao->trust = tau_2 * PetscMin(tao->trust, norm_d);  in TaoSolve_NLS()
670                   tao->trust = tau_max * PetscMin(tao->trust, norm_d);  in TaoSolve_NLS()
677           tao->trust = nlsP->gamma1 * PetscMin(norm_d, tao->trust);  in TaoSolve_NLS()