impls/bncg/bncg.c

257 PetscErrorCode TaoBNCGComputeScalarScaling(PetscReal yty, PetscReal yts, PetscReal sts, PetscReal *scale, PetscReal alpha)
503           PetscCall(TaoBNCGComputeScalarScaling(ynorm2, step * dk_yk, cg->sts, &tau_k, cg->alpha));
520         PetscCall(TaoBNCGComputeScalarScaling(ynorm2, step * dk_yk, cg->sts, &tau_k, cg->alpha));
538         PetscCall(TaoBNCGComputeScalarScaling(ynorm2, step * dk_yk, step * step * dnorm * dnorm, &tau_k, cg->alpha));
555         PetscCall(TaoBNCGComputeScalarScaling(ynorm2, step * dk_yk, snorm * snorm, &tau_k, cg->alpha));
574         PetscCall(TaoBNCGComputeScalarScaling(ynorm2, step * dk_yk, snorm * snorm, &tau_k, cg->alpha));
594         PetscCall(TaoBNCGComputeScalarScaling(ynorm2, step * dk_yk, cg->yts, &tau_k, cg->alpha));
624           PetscCall(TaoBNCGComputeScalarScaling(ynorm2, cg->yts, snorm * snorm, &tau_k, cg->alpha));
668         PetscCall(TaoBNCGComputeScalarScaling(ynorm2, cg->yts, snorm * snorm, &tau_k, cg->alpha));
714           PetscCall(TaoBNCGComputeScalarScaling(ynorm2, cg->yts, snorm * snorm, &tau_k, cg->alpha));
777         PetscCall(TaoBNCGComputeScalarScaling(cg->yty, cg->yts, cg->sts, &tau_k, cg->alpha));
806         PetscCall(TaoBNCGComputeScalarScaling(cg->yty, cg->yts, cg->sts, &tau_k, cg->alpha));
837         PetscCall(TaoBNCGComputeScalarScaling(cg->yty, step * dk_yk, snorm * snorm, &tau_bfgs, cg->bfgs_scale));
838         PetscCall(TaoBNCGComputeScalarScaling(cg->yty, step * dk_yk, snorm * snorm, &tau_dfp, cg->dfp_scale));