/[MITgcm]/manual/s_autodiff/text/doc_ad_2.tex
ViewVC logotype

Diff of /manual/s_autodiff/text/doc_ad_2.tex

Parent Directory Parent Directory | Revision Log Revision Log | View Revision Graph Revision Graph | View Patch Patch

revision 1.7 by cnh, Thu Oct 25 18:36:55 2001 UTC revision 1.13 by heimbach, Fri Jan 18 22:56:45 2002 UTC
# Line 607  at every timestep Line 607  at every timestep
607  [i.e. every hour $ i=0,...,5$ corresponding to  [i.e. every hour $ i=0,...,5$ corresponding to
608  $ k_{i}^{lev1} = 66, 67, \ldots, 71 $].  $ k_{i}^{lev1} = 66, 67, \ldots, 71 $].
609  Thus, the  final state $ v_n = v_{k_{n}^{lev1}} $ is reached  Thus, the  final state $ v_n = v_{k_{n}^{lev1}} $ is reached
610  and the model state of all  proceeding timesteps along the last  and the model state of all proceeding timesteps along the last
611  sub-subsections are available, enabling integration backwards  sub-subsections are available, enabling integration backwards
612  in time along the last sub-subsection.  in time along the last sub-subsection.
613  Thus, the adjoint can be computed along this last  Thus, the adjoint can be computed along this last
# Line 1258  In this section we describe in a general Line 1258  In this section we describe in a general
1258  the parts of the code that are relevant for automatic  the parts of the code that are relevant for automatic
1259  differentiation using the software tool TAMC.  differentiation using the software tool TAMC.
1260    
 \begin{figure}[b!]  
1261  \input{part5/doc_ad_the_model}  \input{part5/doc_ad_the_model}
 \caption{~}  
 \label{fig:adthemodel}  
 \end{figure}  
1262    
1263  The basic flow is depicted in \ref{fig:adthemodel}.  The basic flow is depicted in \ref{fig:adthemodel}.
1264  If the option {\tt ALLOW\_AUTODIFF\_TAMC} is defined, the driver routine  If the option {\tt ALLOW\_AUTODIFF\_TAMC} is defined, the driver routine
# Line 1299  All aspects relevant to the treatment of Line 1295  All aspects relevant to the treatment of
1295  (parameter setting, initialization, accumulation,  (parameter setting, initialization, accumulation,
1296  final evaluation), are controlled by the package {\it pkg/cost}.  final evaluation), are controlled by the package {\it pkg/cost}.
1297    
 \begin{figure}[h!]  
1298  \input{part5/doc_cost_flow}  \input{part5/doc_cost_flow}
 \caption{~}  
 \label{fig:costflow}  
 \end{figure}  
1299    
1300  \subsubsection{genmake and CPP options}  \subsubsection{genmake and CPP options}
1301  %  %
# Line 1434  tamc -output 'fc' ... Line 1426  tamc -output 'fc' ...
1426    
1427  %%%% \end{document}  %%%% \end{document}
1428    
 \begin{figure}  
1429  \input{part5/doc_ad_the_main}  \input{part5/doc_ad_the_main}
 \caption{~}  
 \label{fig:adthemain}  
 \end{figure}  
1430    
1431  \subsection{The control variables (independent variables)  \subsection{The control variables (independent variables)
1432  \label{section_ctrl}}  \label{section_ctrl}}
# Line 1458  All aspects relevant to the treatment of Line 1446  All aspects relevant to the treatment of
1446  (parameter setting, initialization, perturbation)  (parameter setting, initialization, perturbation)
1447  are controlled by the package {\it pkg/ctrl}.  are controlled by the package {\it pkg/ctrl}.
1448    
 \begin{figure}[h!]  
1449  \input{part5/doc_ctrl_flow}  \input{part5/doc_ctrl_flow}
 \caption{~}  
 \label{fig:ctrlflow}  
 \end{figure}  
1450    
1451  \subsubsection{genmake and CPP options}  \subsubsection{genmake and CPP options}
1452  %  %
# Line 1782  The gradient $ \nabla _{u}{\cal J} |_{u_ Line 1766  The gradient $ \nabla _{u}{\cal J} |_{u_
1766  with the value of the cost function itself $ {\cal J}(u_{[k]}) $  with the value of the cost function itself $ {\cal J}(u_{[k]}) $
1767  at iteration step $ k $ serve  at iteration step $ k $ serve
1768  as input to a minimization routine (e.g. quasi-Newton method,  as input to a minimization routine (e.g. quasi-Newton method,
1769  conjugate gradient, ... \cite{gil_lem:89})  conjugate gradient, ... \cite{gil-lem:89})
1770  to compute an update in the  to compute an update in the
1771  control variable for iteration step $k+1$  control variable for iteration step $k+1$
1772  \[  \[
# Line 1913  to {\it adxx\_...$<$k$>$}, again via the Line 1897  to {\it adxx\_...$<$k$>$}, again via the
1897  Finally, {\it ctrl\_pack} collects all adjoint files  Finally, {\it ctrl\_pack} collects all adjoint files
1898  and writes them to the compressed vector file  and writes them to the compressed vector file
1899  {\bf vector\_grad\_$<$k$>$}.  {\bf vector\_grad\_$<$k$>$}.
   
 \subsection{TLM and ADM generation via TAMC}  
   
   
   
 \subsection{Flow directives and adjoint support routines \label{section_flowdir}}  
   
 \subsection{Store directives and checkpointing \label{section_checkpointing}}  
   
 \subsection{Gradient checks \label{section_grdchk}}  
   
 \subsection{Second derivative generation via TAMC}  
   
 \section{Example of adjoint code}  
Legend:
Removed from v.1.7  
changed lines
  Added in v.1.13
  ViewVC Help
Powered by ViewVC 1.1.22