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<H2><A NAME="SECTION02123000000000000000">
Recommended</A>
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<LI><SPAN CLASS="textbf">Python:</SPAN><A NAME="736"></A>
Needed for the python language binding (obviously) and for the testing harness.
Since the Linux kernel is often configured with a Python-based tool, its
hard to find a Linux without python already installed. Python can be
downloaded from
<A NAME="tex2html13"
HREF="http://www.python.org">http://www.python.org</A>.
<P>
One important gotcha is a special case where non-python applications create
Babel objects implemented in python. In this case, the Babel runtime
needs to dynamically load the python virtual machine (libpython.so).
Unfortunately, python does not always build a dynamically loadable version
of this library by default. If the Babel configure script cannot find
a libpython.so, it will disable server-side Python support.
<P>
At the time of this writing, Python cannot be coerced to build a
libpython.so on AIX.
<P>
</LI>
<LI><SPAN CLASS="textbf">Numeric Python (NumPy):</SPAN><A NAME="740"></A><A NAME="741"></A>
This is a scientific array python extension module. It
provides native C arrays (and the ability to manipulate very
big arrays) similar to python lists. Babel's python
language binding requires this extension module available
at <A NAME="tex2html14"
HREF="http://www.pfdubois.com/numpy">http://www.pfdubois.com/numpy</A>.
<P>
</LI>
<LI><SPAN CLASS="textbf">Python Meta Widgets (Pmw):</SPAN><A NAME="745"></A>
This is a library of GUI widgets built on top of Python's native
tcl/tk interface (tkinter). Its available on SourceForge
<A NAME="tex2html15"
HREF="http://pmw.sourceforge.net">http://pmw.sourceforge.net</A>
Pmw is only needed by the GUI in the
babel-life supercomputing demo. This Babel implementation of Conway's
Game of Life is a separate tarball found in the contrib/ directory of
the Babel distro. There is no test for Pmw in Babel's configuration script.
<P>
</LI>
<LI><SPAN CLASS="textbf">Chasm:</SPAN><A NAME="749"></A>
Babel uses the Fortran array descriptor library available in Chasm (see
<A NAME="tex2html16"
HREF="http://chasm-interop.sourceforge.net">http://chasm-interop.sourceforge.net</A>).
Chasm is a language interoperability tool in its own right,
but as of version 1.0.1, only the array library is considered complete.
Without Chasm, the configuration script will disable Fortran 90 support.
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<LI><SPAN CLASS="textbf">pthreads:</SPAN><A NAME="753"></A> Needed for Java language binding.
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<ADDRESS>
<br><br>babel-0.10.2<br>users_guide Last Modified 2005-03-23<br><br><a href="http://www.llnl.gov/CASC/components">http://www.llnl.gov/CASC/components</a><br><a href="mailto:components@llnl.gov">components@llnl.gov</a>
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