451     PetscCall(KSPCGGetNormD(tao->ksp, &bnk->dnorm));  in TaoBNKComputeStep()
455       if (bnk->dnorm > 0.0) {  in TaoBNKComputeStep()
456         tao->trust = bnk->dnorm;  in TaoBNKComputeStep()
475         PetscCall(KSPCGGetNormD(tao->ksp, &bnk->dnorm));  in TaoBNKComputeStep()
477 …PetscCheck(bnk->dnorm != 0.0, PetscObjectComm((PetscObject)tao), PETSC_ERR_PLIB, "Initial directio…  in TaoBNKComputeStep()
809         tao->trust = bnk->omega1 * PetscMin(bnk->dnorm, tao->trust);  in TaoBNKUpdateTrustRadius()
812         tao->trust = bnk->omega2 * PetscMin(bnk->dnorm, tao->trust);  in TaoBNKUpdateTrustRadius()
816           tao->trust = bnk->omega3 * PetscMin(bnk->dnorm, tao->trust);  in TaoBNKUpdateTrustRadius()
818           tao->trust = PetscMax(bnk->omega3 * bnk->dnorm, tao->trust);  in TaoBNKUpdateTrustRadius()
822         tao->trust = PetscMax(bnk->omega4 * bnk->dnorm, tao->trust);  in TaoBNKUpdateTrustRadius()
825         tao->trust = PetscMax(bnk->omega5 * bnk->dnorm, tao->trust);  in TaoBNKUpdateTrustRadius()
829       tao->trust = bnk->omega1 * PetscMin(bnk->dnorm, tao->trust);  in TaoBNKUpdateTrustRadius()
839         tao->trust = bnk->alpha1 * PetscMin(tao->trust, bnk->dnorm);  in TaoBNKUpdateTrustRadius()
842           tao->trust = bnk->alpha1 * PetscMin(tao->trust, bnk->dnorm);  in TaoBNKUpdateTrustRadius()
852             tao->trust = bnk->alpha1 * PetscMin(tao->trust, bnk->dnorm);  in TaoBNKUpdateTrustRadius()
857             if (bnk->dnorm == tao->trust) {  in TaoBNKUpdateTrustRadius()
877       tao->trust = bnk->alpha1 * PetscMin(bnk->dnorm, tao->trust);  in TaoBNKUpdateTrustRadius()
887         tao->trust = bnk->gamma1 * PetscMin(tao->trust, bnk->dnorm);  in TaoBNKUpdateTrustRadius()
890           tao->trust = bnk->gamma1 * PetscMin(tao->trust, bnk->dnorm);  in TaoBNKUpdateTrustRadius()
908               tao->trust = PetscMax(tao->trust, bnk->gamma3 * bnk->dnorm);  in TaoBNKUpdateTrustRadius()
910               tao->trust = PetscMax(tao->trust, bnk->gamma4 * bnk->dnorm);  in TaoBNKUpdateTrustRadius()
912               tao->trust = PetscMax(tao->trust, tau_max * bnk->dnorm);  in TaoBNKUpdateTrustRadius()
918               tao->trust = bnk->gamma2 * PetscMin(tao->trust, bnk->dnorm);  in TaoBNKUpdateTrustRadius()
920               tao->trust = PetscMax(tao->trust, bnk->gamma3 * bnk->dnorm);  in TaoBNKUpdateTrustRadius()
922               tao->trust = tau_max * PetscMin(tao->trust, bnk->dnorm);  in TaoBNKUpdateTrustRadius()
924               tao->trust = PetscMax(tao->trust, tau_max * bnk->dnorm);  in TaoBNKUpdateTrustRadius()
929               tao->trust = bnk->gamma2 * PetscMin(tao->trust, bnk->dnorm);  in TaoBNKUpdateTrustRadius()
931               tao->trust = bnk->gamma1 * PetscMin(tao->trust, bnk->dnorm);  in TaoBNKUpdateTrustRadius()
933               tao->trust = bnk->gamma1 * PetscMin(tao->trust, bnk->dnorm);  in TaoBNKUpdateTrustRadius()
935               tao->trust = tau_1 * PetscMin(tao->trust, bnk->dnorm);  in TaoBNKUpdateTrustRadius()
937               tao->trust = tau_2 * PetscMin(tao->trust, bnk->dnorm);  in TaoBNKUpdateTrustRadius()
939               tao->trust = tau_max * PetscMin(tao->trust, bnk->dnorm);  in TaoBNKUpdateTrustRadius()
946       tao->trust = bnk->gamma1 * PetscMin(bnk->dnorm, tao->trust);  in TaoBNKUpdateTrustRadius()