27 …scErrorCode TaoSetHessian(Tao tao, Mat H, Mat Hpre, PetscErrorCode (*func)(Tao tao, Vec x, Mat H, …  in TaoSetHessian()  argument
35   if (Hpre) {  in TaoSetHessian()
36     PetscValidHeaderSpecific(Hpre, MAT_CLASSID, 3);  in TaoSetHessian()
37     PetscCheckSameComm(tao, 1, Hpre, 3);  in TaoSetHessian()
46   if (Hpre) {  in TaoSetHessian()
47     PetscCall(PetscObjectReference((PetscObject)Hpre));  in TaoSetHessian()
49     tao->hessian_pre = Hpre;  in TaoSetHessian()
79 …ErrorCode TaoGetHessian(Tao tao, Mat *H, Mat *Hpre, PetscErrorCode (**func)(Tao tao, Vec x, Mat H,…  in TaoGetHessian()  argument
84   if (Hpre) *Hpre = tao->hessian_pre;  in TaoGetHessian()
250 PetscErrorCode TaoComputeHessian(Tao tao, Vec X, Mat H, Mat Hpre)  in TaoComputeHessian()  argument
260   PetscCall(PetscLogEventBegin(TAO_HessianEval, tao, X, H, Hpre));  in TaoComputeHessian()
261 …PetscCallBack("Tao callback Hessian", (*tao->ops->computehessian)(tao, X, H, Hpre, tao->user_hessP…  in TaoComputeHessian()
262   PetscCall(PetscLogEventEnd(TAO_HessianEval, tao, X, H, Hpre));  in TaoComputeHessian()