PETSc version 3.17.4
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TaoGetGradient

Gets the gradient evaluation routine for minimization

Synopsis

#include "petsctao.h" 
PetscErrorCode TaoGetGradient(Tao tao, Vec *g, PetscErrorCode (**func)(Tao, Vec, Vec, void*),void **ctx)
Not collective

Input Parameter

tao - the Tao context

Output Parameters

g - the vector to internally hold the gradient computation
func - the gradient function
ctx - user-defined context for private data for the gradient evaluation routine

Calling sequence of func

     func (Tao tao, Vec x, Vec g, void *ctx);

x - input vector
g - gradient value (output)
ctx - [optional] user-defined function context

See Also

TaoSetObjective(), TaoSetHessian(), TaoSetObjectiveAndGradient(), TaoSetGradient()

Level

beginner

Location

src/tao/interface/taosolver_fg.c

Examples

src/tao/unconstrained/tutorials/spectraladjointassimilation.c.html

Index of all Tao routines
Table of Contents for all manual pages
Index of all manual pages