TSGetCostHessianProducts#

Returns the gradients from the TSAdjointSolve()

Synopsis#

#include "petscts.h"  
PetscErrorCode TSGetCostHessianProducts(TS ts, PetscInt *numcost, Vec **lambda2, Vec **mu2, Vec *dir)

Not Collective, but vectors returned are parallel if TS is parallel

Input Parameter#

ts - the TS context obtained from TSCreate()

Output Parameters#

numcost - number of cost functions
lambda2 - Hessian-vector product with respect to the initial condition variables, the dimension and parallel layout of these vectors is the same as the ODE solution vector
mu2 - Hessian-vector product with respect to the parameters, the number of entries in these vectors is the same as the number of parameters
dir - the direction vector that are multiplied with the Hessian of the cost functions

See Also#

TS: Scalable ODE and DAE Solvers, TSAdjointSolve(), TSSetCostHessianProducts()

Level#

intermediate

Location#

src/ts/interface/sensitivity/tssen.c

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