133   if (!cg->G_old) PetscCall(VecDuplicate(tao->gradient, &cg->G_old));  in TaoSetUp_BNCG()
155     PetscCall(VecDestroy(&cg->G_old));  in TaoDestroy_BNCG()
448     PetscCall(VecWAXPY(cg->yk, -1.0, cg->G_old, tao->gradient));  in TaoBNCGStepDirectionUpdate()
532       PetscCall(VecDot(cg->G_old, cg->G_old, &gnorm2_old));  in TaoBNCGStepDirectionUpdate()
533       PetscCall(VecWAXPY(cg->yk, -1.0, cg->G_old, tao->gradient));  in TaoBNCGStepDirectionUpdate()
542         PetscCall(VecDot(cg->G_old, cg->g_work, &gnorm2_old)); /* Before it's updated */  in TaoBNCGStepDirectionUpdate()
553         PetscCall(VecDot(cg->G_old, cg->G_old, &gnorm2_old));  in TaoBNCGStepDirectionUpdate()
559         PetscCall(VecDot(cg->G_old, cg->g_work, &gnorm2_old));  in TaoBNCGStepDirectionUpdate()
568       PetscCall(VecWAXPY(cg->yk, -1.0, cg->G_old, tao->gradient));  in TaoBNCGStepDirectionUpdate()
572         PetscCall(VecDot(cg->G_old, cg->G_old, &gnorm2_old));  in TaoBNCGStepDirectionUpdate()
579         PetscCall(VecDot(cg->G_old, cg->g_work, &gnorm2_old)); /* Old gtDg */  in TaoBNCGStepDirectionUpdate()
593         PetscCall(VecDot(cg->G_old, tao->stepdirection, &gd_old));  in TaoBNCGStepDirectionUpdate()
601         PetscCall(VecDot(tao->stepdirection, cg->G_old, &gd_old));  in TaoBNCGStepDirectionUpdate()
614       PetscCall(VecDot(cg->G_old, tao->stepdirection, &gd_old));  in TaoBNCGStepDirectionUpdate()
649           PetscCall(VecDot(cg->G_old, cg->d_work, &gd_old));  in TaoBNCGStepDirectionUpdate()
662       PetscCall(VecDot(cg->G_old, tao->stepdirection, &gd_old));  in TaoBNCGStepDirectionUpdate()
693         PetscCall(VecDot(cg->G_old, cg->d_work, &gd_old));  in TaoBNCGStepDirectionUpdate()
704       PetscCall(VecDot(cg->G_old, tao->stepdirection, &gd_old));  in TaoBNCGStepDirectionUpdate()
881   PetscCall(VecCopy(tao->gradient, cg->G_old));  in TaoBNCGConductIteration()
905         PetscCall(VecCopy(cg->G_old, tao->gradient));  in TaoBNCGConductIteration()