3 ms·
"minres outperforming cg" likely depends on the stopping criterion, since different norms are used.
by stabbles 3y ago
"minres outperforming cg" likely depends on the stopping criterion, since different norms are used.
- trostaft 3y agoYes, to (grossly) summarize the conclusion of the paper: minres can outperform CG on the backwards error ||r_k|| / ||x_k|| whereas CG can outperform minres on the absolute error ||x^* - x_k|| and the energy norm ||x^* - x_k||_A.