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\ref{chap:sarch}. |
\ref{chap:sarch}. |
15 |
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|
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\section{Where to find information} |
\section{Where to find information} |
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\label{sect:whereToFindInfo} |
\label{sec:whereToFindInfo} |
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\begin{rawhtml} |
\begin{rawhtml} |
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\end{rawhtml} |
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\begin{rawhtml} </A> \end{rawhtml} |
\begin{rawhtml} </A> \end{rawhtml} |
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\section{Obtaining the code} |
\section{Obtaining the code} |
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\label{sect:obtainingCode} |
\label{sec:obtainingCode} |
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\begin{rawhtml} |
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\end{enumerate} |
\end{enumerate} |
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|
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\subsection{Method 1 - Checkout from CVS} |
\subsection{Method 1 - Checkout from CVS} |
66 |
\label{sect:cvs_checkout} |
\label{sec:cvs_checkout} |
67 |
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|
68 |
If CVS is available on your system, we strongly encourage you to use it. CVS |
If CVS is available on your system, we strongly encourage you to use it. CVS |
69 |
provides an efficient and elegant way of organizing your code and keeping |
provides an efficient and elegant way of organizing your code and keeping |
219 |
with. So please be sure you understand what you're doing. |
with. So please be sure you understand what you're doing. |
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\subsection{Method 2 - Tar file download} |
\subsection{Method 2 - Tar file download} |
222 |
\label{sect:conventionalDownload} |
\label{sec:conventionalDownload} |
223 |
|
|
224 |
If you do not have CVS on your system, you can download the model as a |
If you do not have CVS on your system, you can download the model as a |
225 |
tar file from the web site at: |
tar file from the web site at: |
276 |
package corresponds to a subdirectory. For example, \texttt{gmredi} |
package corresponds to a subdirectory. For example, \texttt{gmredi} |
277 |
contains the code related to the Gent-McWilliams/Redi scheme, |
contains the code related to the Gent-McWilliams/Redi scheme, |
278 |
\texttt{aim} the code relative to the atmospheric intermediate |
\texttt{aim} the code relative to the atmospheric intermediate |
279 |
physics. The packages are described in detail in chapter \ref{chap.packagesI}. |
physics. The packages are described in detail in chapter \ref{chap:packagesI}. |
280 |
|
|
281 |
\item \texttt{tools}: this directory contains various useful tools. |
\item \texttt{tools}: this directory contains various useful tools. |
282 |
For example, \texttt{genmake2} is a script written in csh (C-shell) |
For example, \texttt{genmake2} is a script written in csh (C-shell) |
300 |
decompositions. |
decompositions. |
301 |
|
|
302 |
\item \texttt{verification}: this directory contains the model |
\item \texttt{verification}: this directory contains the model |
303 |
examples. See section \ref{sect:modelExamples}. |
examples. See section \ref{sec:modelExamples}. |
304 |
|
|
305 |
\item \texttt{jobs}: contains sample job scripts for running MITgcm. |
\item \texttt{jobs}: contains sample job scripts for running MITgcm. |
306 |
|
|
311 |
\end{itemize} |
\end{itemize} |
312 |
|
|
313 |
\section[Building MITgcm]{Building the code} |
\section[Building MITgcm]{Building the code} |
314 |
\label{sect:buildingCode} |
\label{sec:buildingCode} |
315 |
\begin{rawhtml} |
\begin{rawhtml} |
316 |
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file (\texttt{Makefile}) that allows us to pre-process source files, |
file (\texttt{Makefile}) that allows us to pre-process source files, |
321 |
specify compiler and optimization options and also figures out any |
specify compiler and optimization options and also figures out any |
322 |
file dependencies. We supply a script (\texttt{genmake2}), described |
file dependencies. We supply a script (\texttt{genmake2}), described |
323 |
in section \ref{sect:genmake}, that automatically creates the |
in section \ref{sec:genmake}, that automatically creates the |
324 |
\texttt{Makefile} for you. You then need to build the dependencies and |
\texttt{Makefile} for you. You then need to build the dependencies and |
325 |
compile the code. |
compile the code. |
326 |
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|
395 |
number of CPUs available. |
number of CPUs available. |
396 |
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|
397 |
Now you are ready to run the model. General instructions for doing so are |
Now you are ready to run the model. General instructions for doing so are |
398 |
given in section \ref{sect:runModel}. Here, we can run the model by |
given in section \ref{sec:runModel}. Here, we can run the model by |
399 |
first creating links to all the input files: |
first creating links to all the input files: |
400 |
\begin{verbatim} |
\begin{verbatim} |
401 |
ln -s ../input/* . |
ln -s ../input/* . |
409 |
|
|
410 |
\subsection{Building/compiling the code elsewhere} |
\subsection{Building/compiling the code elsewhere} |
411 |
|
|
412 |
In the example above (section \ref{sect:buildingCode}) we built the |
In the example above (section \ref{sec:buildingCode}) we built the |
413 |
executable in the {\em input} directory of the experiment for |
executable in the {\em input} directory of the experiment for |
414 |
convenience. You can also configure and compile the code in other |
convenience. You can also configure and compile the code in other |
415 |
locations, for example on a scratch disk with out having to copy the |
locations, for example on a scratch disk with out having to copy the |
513 |
|
|
514 |
|
|
515 |
\subsection{Using \texttt{genmake2}} |
\subsection{Using \texttt{genmake2}} |
516 |
\label{sect:genmake} |
\label{sec:genmake} |
517 |
|
|
518 |
To compile the code, first use the program \texttt{genmake2} (located |
To compile the code, first use the program \texttt{genmake2} (located |
519 |
in the \texttt{tools} directory) to generate a Makefile. |
in the \texttt{tools} directory) to generate a Makefile. |
684 |
|
|
685 |
\item[\texttt{--mpi}] This option enables certain MPI features (using |
\item[\texttt{--mpi}] This option enables certain MPI features (using |
686 |
CPP \texttt{\#define}s) within the code and is necessary for MPI |
CPP \texttt{\#define}s) within the code and is necessary for MPI |
687 |
builds (see Section \ref{sect:mpi-build}). |
builds (see Section \ref{sec:mpi-build}). |
688 |
|
|
689 |
\item[\texttt{--make=/path/to/gmake}] Due to the poor handling of |
\item[\texttt{--make=/path/to/gmake}] Due to the poor handling of |
690 |
soft-links and other bugs common with the \texttt{make} versions |
soft-links and other bugs common with the \texttt{make} versions |
707 |
|
|
708 |
|
|
709 |
\subsection{Building with MPI} |
\subsection{Building with MPI} |
710 |
\label{sect:mpi-build} |
\label{sec:mpi-build} |
711 |
|
|
712 |
Building MITgcm to use MPI libraries can be complicated due to the |
Building MITgcm to use MPI libraries can be complicated due to the |
713 |
variety of different MPI implementations available, their dependencies |
variety of different MPI implementations available, their dependencies |
722 |
|
|
723 |
\item Determine the locations of your MPI-enabled compiler and/or MPI |
\item Determine the locations of your MPI-enabled compiler and/or MPI |
724 |
libraries and put them into an options file as described in Section |
libraries and put them into an options file as described in Section |
725 |
\ref{sect:genmake}. One can start with one of the examples in: |
\ref{sec:genmake}. One can start with one of the examples in: |
726 |
\begin{rawhtml} <A |
\begin{rawhtml} <A |
727 |
href="http://mitgcm.org/viewvc/MITgcm/MITgcm/tools/build_options/"> |
href="http://mitgcm.org/viewvc/MITgcm/MITgcm/tools/build_options/"> |
728 |
\end{rawhtml} |
\end{rawhtml} |
757 |
\end{itemize} |
\end{itemize} |
758 |
|
|
759 |
\item Build the code with the \texttt{genmake2} \texttt{-mpi} option |
\item Build the code with the \texttt{genmake2} \texttt{-mpi} option |
760 |
(see Section \ref{sect:genmake}) using commands such as: |
(see Section \ref{sec:genmake}) using commands such as: |
761 |
{\footnotesize \begin{verbatim} |
{\footnotesize \begin{verbatim} |
762 |
% ../../../tools/genmake2 -mods=../code -mpi -of=YOUR_OPTFILE |
% ../../../tools/genmake2 -mods=../code -mpi -of=YOUR_OPTFILE |
763 |
% make depend |
% make depend |
811 |
\end{verbatim} } |
\end{verbatim} } |
812 |
|
|
813 |
\section[Running MITgcm]{Running the model in prognostic mode} |
\section[Running MITgcm]{Running the model in prognostic mode} |
814 |
\label{sect:runModel} |
\label{sec:runModel} |
815 |
\begin{rawhtml} |
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816 |
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817 |
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818 |
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|
819 |
If compilation finished succesfully (section \ref{sect:buildingCode}) |
If compilation finished succesfully (section \ref{sec:buildingCode}) |
820 |
then an executable called \texttt{mitgcmuv} will now exist in the |
then an executable called \texttt{mitgcmuv} will now exist in the |
821 |
local directory. |
local directory. |
822 |
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|