#include "petsctao.h" PetscErrorCode TaoGetConvergenceHistory(Tao tao, PetscReal **obj, PetscReal **resid, PetscReal **cnorm, PetscInt **lits, PetscInt *nhist)Collective on Tao
| obj | - array used to hold objective value history | |
| resid | - array used to hold residual history | |
| cnorm | - array used to hold constraint violation history | |
| lits | - integer array used to hold linear solver iteration count | |
| nhist | - size of obj, resid, cnorm, and lits |
The calling sequence for this routine in Fortran is
call TaoGetConvergenceHistory(Tao tao, PetscInt nhist, PetscErrorCode ierr)
This routine is useful, e.g., when running a code for purposes of accurate performance monitoring, when no I/O should be done during the section of code that is being timed.