TaoSetJacobianResidualRoutine#

Sets the function to compute the least-squares residual Jacobian as well as the location to store the matrix.

Synopsis#

#include "petsctao.h" 
PetscErrorCode TaoSetJacobianResidualRoutine(Tao tao, Mat J, Mat Jpre, PetscErrorCode (*func)(Tao, Vec, Mat, Mat, void *), void *ctx)

Logically collective

Input Parameters#

  • tao - the Tao context

  • J - Matrix used for the jacobian

  • Jpre - Matrix that will be used operated on by preconditioner, can be same as J

  • func - Jacobian evaluation routine

  • ctx - [optional] user-defined context for private data for the Jacobian evaluation routine (may be NULL)

Calling sequence of func#

func(Tao tao,Vec x,Mat J,Mat Jpre,void *ctx);
  • tao - the Tao context

  • x - input vector

  • J - Jacobian matrix

  • Jpre - preconditioning matrix, usually the same as J

  • ctx - [optional] user-defined Jacobian context

See Also#

Tao, TaoSetGradient(), TaoSetObjective()

Level#

intermediate

Location#

src/tao/interface/taosolver_hj.c

Examples#

src/tao/leastsquares/tutorials/chwirut1.c.html
src/tao/leastsquares/tutorials/cs1.c.html
src/tao/leastsquares/tutorials/tomography.c.html


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