The /parallel/timer/usage command includes only the solver time and to print Linear solver statistics etc.. It doesn’t include time spent in collecting, and reporting residuals, time spent in calculating and reporting monitors like (force, surface and volume). For measuring wall-clock time below command should be used. For steady runs: (benchmark ‘(iterate 200)) It would print the elapsed time for 200 iterations For unsteady runs (benchmark ‘(ti-menu-load-string “/solve/dual-time-iterate 10 20 “)) It would print the elapsed time for 10 time steps à 20 iterations