s_autodiff/text/doc_grdchk_flow.tex

\begin{figure}[!ht]

{\scriptsize
\begin{verbatim}

   the_model_main
   |
   |-- ctrl_unpack
   |-- adthe_main_loop            - unperturbed cost function and
   |-- ctrl_pack                    adjoint gradient are computed here
   |
   |-- grdchk_main
       |
       |-- grdchk_init
       |-- do icomp=...           - loop over control vector elements
           |
           |-- grdchk_loc         - determine location of icomp on grid
           |
           |-- grdchk_getxx       - get control vector component from file
           |                        perturb it and write back to file
           |-- grdchk_getadxx     - get gradient component calculated 
           |                        via adjoint
           |-- the_main_loop      - forward run and cost evaluation
           |                        with perturbed control vector element
           |-- calculate ratio of adj. vs. finite difference gradient
           |
           |-- grdchk_setxx       - Reset control vector element
           |
           |-- grdchk_print       - print results

\end{verbatim}
}

\caption{~}
\label{fig:grdchkflow}
\end{figure}
1	\begin{figure}[!ht]
2
3	{\scriptsize
4	\begin{verbatim}
5
6	the_model_main
7	\|
8	\|-- ctrl_unpack
9	\|-- adthe_main_loop - unperturbed cost function and
10	\|-- ctrl_pack adjoint gradient are computed here
11	\|
12	\|-- grdchk_main
13	\|
14	\|-- grdchk_init
15	\|-- do icomp=... - loop over control vector elements
16	\|
17	\|-- grdchk_loc - determine location of icomp on grid
18	\|
19	\|-- grdchk_getxx - get control vector component from file
20	\| perturb it and write back to file
21	\|-- grdchk_getadxx - get gradient component calculated
22	\| via adjoint
23	\|-- the_main_loop - forward run and cost evaluation
24	\| with perturbed control vector element
25	\|-- calculate ratio of adj. vs. finite difference gradient
26	\|
27	\|-- grdchk_setxx - Reset control vector element
28	\|
29	\|-- grdchk_print - print results
30
31	\end{verbatim}
32	}
33
34	\caption{~}
35	\label{fig:grdchkflow}
36	\end{figure}