PETSc version 3.15.5
TaoGetResidualNorm
Gets the current value of the norm of the residual at this time. 
Synopsis
#include "petsctao.h" 
PetscErrorCode  TaoGetResidualNorm(Tao tao,PetscReal *value)
Not Collective
Input Parameter
Output Parameter
|  | value | - the current value | 
Developer Note: This is the 2-norm of the residual, we cannot use TaoGetGradientNorm() because that has
a different meaning. For some reason Tao sometimes calls the gradient the residual.
See Also
   TaoGetLinearSolveIterations(), TaoGetIterationNumber(), TaoGetObjective()
Level
intermediate
Location
src/tao/interface/taosolver.c
Index of all Tao routines
Table of Contents for all manual pages
Index of all manual pages