26   Vec       U, Lambda[1], Mup[1]; /* adjoint variables */  member
405   PetscCall(MatCreateVecs(user.A, &user.Lambda[0], NULL));  in main()
497   PetscCall(VecDestroy(&user.Lambda[0]));  in main()
552   PetscCall(VecGetArray(user_ptr->Lambda[0], &x_ptr));  in FormFunctionGradient()
556   PetscCall(VecRestoreArray(user_ptr->Lambda[0], &x_ptr));  in FormFunctionGradient()
561   PetscCall(TSSetCostGradients(ts, 1, user_ptr->Lambda, user_ptr->Mup));  in FormFunctionGradient()
566   PetscCall(VecGetArrayRead(user_ptr->Lambda[0], &y_ptr));  in FormFunctionGradient()
570   PetscCall(VecRestoreArrayRead(user_ptr->Lambda[0], &y_ptr));  in FormFunctionGradient()
638   PetscCall(VecGetArray(ctx->Lambda[0], &y_ptr));  in Adjoint2()
641   PetscCall(VecRestoreArray(ctx->Lambda[0], &y_ptr));  in Adjoint2()
656   PetscCall(TSSetCostGradients(ts, 1, ctx->Lambda, ctx->Mup));  in Adjoint2()
664   PetscCall(VecGetArray(ctx->Lambda[0], &x_ptr));  in Adjoint2()