install.html

有限元学习研究用源代码(老外的),供科研人员参考

<TITLE>COG 2.0 - Installation</TITLE>

<H1>Installation</H1>

<H2>Public Domain Version</H2>

 <P>You can download the compressed tar file
 <A HREF="ftp://ftp.wias-berlin.de/pub/cog/cog.tar.gz"> 
 ftp://ftp.wias-berlin.de/pub/cog/cog.tar.gz </A>, decompressed and
untar it:

<PRE>
/base&gt; gunzip cog.tar.gz
/base&gt; tar xf cog.tar
</PRE>

 <P>Then the subdirectory cog contains the complete source code and
this documentation:

<PRE>
/base&gt; cd cog
/base/cog&gt; netscape install.html
</PRE>

<H2>Environment variables</H2>

 <P>Now, you have to define the environment variable COG_HOME
and to add the subdirectory <B>bin</B> to the path:

<PRE>
####### put this into your .cshrc #######
setenv COG_HOME /base/cog
setenv COG_WORK /your/working/directory
setenv COG_CONFIG axp
set path = ($COG_HOME/bin/ $path)
</PRE>

 <P>The variable COG_WORK is optional, if omitted the current
directory is used as the working directory.

<H3>Compiler Flags</H3>

 <P>C++ compiler flags may be different for different machines. 
For this purpose, we have different sets of compiler flags 
defined in $COG_HOME/config/*.mk

 <P>You have to choose one of them, for example
$COG_HOME/config/axp.mk, in the following way:

<PRE>
####### put this into your .cshrc #######
setenv COG_CONFIG axp
</PRE>

 <P>Feel free to create own files $COG_HOME/config/myflags.mk for your
preferred set of compiler flags. In this case, set COG_CONFIG to myflags.

 <P>Now, at least in principle, it should be possible to install COG with

<PRE>
/base/cog&gt; install
</PRE>

 <P>Now you can choose a different working directory to
 <A HREF="mainstarttest.html">test</A>
 <A HREF="index.html">COG</A>.

 <P>That's all, I hope. But, of course, this works only on my own machine :-(

 <P>Some problems which may be solved:

<H2>No perl</H2>

 <P>It is useful to have <B>perl</B> on your machine. If not, this is
not very problematic. <B>perl</B> is used only for the test
environment, in the perl-scripts <B>use</B> and <B>run</B>, and in the
initialization script <B>install</B>.  It is still easy to use COG,
especially the test code in the HTML documentation, without
<B>perl</B>.

<H2>No OpenGL</H2>

 <P>In this case, forget the geometry viewer. You can still use COG
for grid generation. Remove in Makefile the following definitions:

<PRE>
GLLOADLIBES =  ....
GLOBJ =	....
</PRE>

 <P>After this, the only possible output is the grid in the Simplex
format.

<H2>Compiler Problems</H2>

 <P>Hmm. <A HREF="mailto:[e-mail]">Send me</A> a mail.