impls/bncg/bncg.c

134   if (cg->diag_scaling) {
189     cg->diag_scaling     = PETSC_FALSE;
200   PetscCall(PetscOptionsBool("-tao_bncg_diag_scaling", "Enable diagonal Broyden-like preconditioning", "", cg->diag_scaling, &cg->diag_scaling, NULL));
209     cg->diag_scaling = PETSC_FALSE;
212   if (cg->alpha == -1.0 && cg->cg_type == TAO_BNCG_KD && !cg->diag_scaling) { /* Some more default options that appear to be good. */
244     if (cg->diag_scaling) {
390   cg->diag_scaling     = PETSC_TRUE;
409   if (cg->diag_scaling) PetscCall(MatLMVMReset(cg->B, PETSC_FALSE));
467   if (cg->diag_scaling) PetscCall(MatLMVMUpdate(cg->B, tao->solution, tao->gradient));
500       if (!cg->diag_scaling) {
517       if (!cg->diag_scaling) {
537       if (!cg->diag_scaling) {
552       if (!cg->diag_scaling) {
571       if (!cg->diag_scaling) {
591       if (!cg->diag_scaling) {
622         if (!cg->diag_scaling) {
666       if (!cg->diag_scaling) {
712         if (!cg->diag_scaling) {
775       if (!cg->diag_scaling) {
804       if (!cg->diag_scaling) {
835       if (!cg->diag_scaling) {
912         if (cg->cg_type != TAO_BNCG_PCGD && cg->diag_scaling) {