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Revision 1.1 - (show annotations) (download) (as text)
Fri Jan 18 03:39:11 2008 UTC (17 years, 6 months ago) by heimbach
Branch: MAIN
CVS Tags: checkpoint01, HEAD
File MIME type: application/x-tex
Well, I tested it before checking in, but didn't check in everything
(it's the age...).

1 %**********************************************************************
2 \section{Adjoint code generation using OpenAD}
3 \label{sec_ad_openad}
4 \begin{rawhtml}
5 <!-- CMIREDIR:sec_ad_openad: -->
6 \end{rawhtml}
7 %**********************************************************************
8
9 Authors: Jean Utke, Patrick Heimbach and Chris Hill
10
11 \subsection{Introduction}
12
13 The development of OpenAD was initiated as part of the
14 ACTS (Adjoint Compiler Technology \& Standards) project funded by the NSF Information Technology Research (ITR) program.
15 The main goals for OpenAD initially defined for the ACTS project are:
16 %
17 \begin{enumerate}
18 %
19 \item
20 develop a flexible, modular, open source tool that can ge`nerate adjoint codes of numerical simulation programs,
21 %
22 \item
23 establish a platform for easy implementation and testing of source transformation algorithms via a language-independent abstract intermediate representation,
24 %
25 \item
26 support for source code written in C and Fortan,
27 %
28 \item
29 generate efficient tangent linear and adjoint for the
30 MIT general circulation model.
31 %
32 \end{enumerate}
33
34 OpenAD's homepage is at \texttt{http://www-unix.mcs.anl.gov/OpenAD/}.
35 A development WIKI is at
36 \texttt{http://wiki.mcs.anl.gov/OpenAD/index.php/Main\_Page}.
37 From the WIKI's main page, click on \texttt{Handling GCM} for
38 various aspects pertaining to differentiating the MITgcm with OpenAD.
39
40 \subsection{Downloading and installing OpenAD}
41
42 The OpenAD webpage has a detailed description on how to download and
43 build OpenAD. From its homepage, please click on
44 \texttt{Download Test Binaries}.
45 You may either download pre-built binaries for quick trial,
46 or follow the detailed build process described at
47 \texttt{http://www-unix.mcs.anl.gov/OpenAD/access.html}
48
49 \subsection{Building MITgcm adjoint with OpenAD}
50
51 \textbf{17-January-2008}
52
53 OpenAD was successfully built on head node of
54 \texttt{itrda.acesgrid.org}, for following system:
55
56 \begin{verbatim}
57 > uname -a
58 Linux itrda 2.6.22.2-42.fc6 #1 SMP Wed Aug 15 12:34:26 EDT 2007 i686 i686 i386 GNU/Linux
59
60 > cat /proc/version
61 Linux version 2.6.22.2-42.fc6 (brewbuilder@hs20-bc2-4.build.redhat.com)
62 (gcc version 4.1.2 20070626 (Red Hat 4.1.2-13)) #1 SMP Wed Aug 15 12:34:26 EDT 2007
63
64 > module load ifc/9.1.036 icc/9.1.042
65 \end{verbatim}
66
67 Head of MITgcm branch (checkpoint59m with some modif.s) was used for building
68 adjoint code.
69 Following routing needed special care (revert to revision 1.1):
70 \\
71 \texttt{MITgcm\_contrib/heimbach/OpenAD/OAD\_support/active\_module.f90 }
72
73

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