petsc-master 2019-11-11
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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 Vec returned is parallel if TS is parallel

Input Parameter

ts -the TS context obtained from TSCreate()

Output Parameter

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

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