petsc-3.7.1 2016-05-15
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TaoGetConvergenceHistory

Gets the arrays used to hold the convergence history.

Synopsis

#include "petsctao.h" 
PetscErrorCode TaoGetConvergenceHistory(Tao tao, PetscReal **obj, PetscReal **resid, PetscReal **cnorm, PetscInt **lits, PetscInt *nhist)
Collective on Tao Many br

Input Parameter

tao -the Tao context Many br

Output Parameters

obj - array used to hold objective value history Many br
resid - array used to hold residual history Many br
cnorm - array used to hold constraint violation history Many br
lits - integer array used to hold linear solver iteration count Many br
nhist - size of obj, resid, cnorm, and lits (will be less than or equal to na given in TaoSetHistory) Many br

Notes

This routine must be preceded by calls to TaoSetConvergenceHistory() Many brand TaoSolve(), otherwise it returns useless information. Many br

The calling sequence for this routine in Fortran is Many br

  call TaoGetConvergenceHistory(Tao tao, PetscInt nhist, PetscErrorCode ierr)

This routine is useful, e.g., when running a code for purposes Many brof accurate performance monitoring, when no I/O should be done Many brduring the section of code that is being timed. Many br

Many br

See Also

TaoSetConvergenceHistory()

Level:advanced
Location:
src/tao/interface/taosolver.c
Index of all Tao routines
Table of Contents for all manual pages
Index of all manual pages

Examples

src/tao/leastsquares/examples/tutorials/chwirut1.c.html
src/tao/leastsquares/examples/tutorials/chwirut1f.F.html