spamass-milter is a plugin for the Sendmail Milter (Mail Filter) library
that pipes all incoming mail (including things received by rmail/UUCP)
through the SpamAssassin, a highly customizable spam filter.
Spamcup is a tool for automatic spam reporting via Spamcop.net.
It performs the same actions as if you were to report spam to
spamcop.net with a Web browser, but from the commandline.
Spamcup is written in Perl.
SQLgrey is a postfix policy service implementing a grey-listing policy.
SQLgrey is written in Perl and uses DBI to access an SQL database.
Its goal is reducing the SPAM reaching user mailboxes
ARPACK-NG is a collection of Fortran77 subroutines designed to solve
large-scale eigenvalue problems. It is a fork of the Rice University
ARPACK, and is jointly-maintained by Debian, Octave, and Scilab.
The BLACS (Basic Linear Algebra Communication Subprograms)
project is an ongoing investigation whose purpose is to create
a linear algebra oriented message passing interface
that may be implemented efficiently and uniformly across
a large range of distributed memory platforms.
Entropy is a program that will calculate the entropy of a given set
of data. This program is mainly used to benchmark the efficiency
of existing or developing compression algorithms.
clFFT
a software library containing FFT functions written in OpenCL
clFFT is a software library containing FFT functions written in OpenCL. In
addition to GPU devices, the libraries also support running on CPU devices to
facilitate debugging and heterogeneous programming.
Diehard is a battery of tests for random number generators developed
by Dr. George Marsaglia of Florida State University Department of
Statistics. Originally developed for testing pseudo-random generators,
Diehard has since become a de facto standard for testing RNGs.
A compiler which allows to typeset geometry figures within a (La)TeX
document. This program is also useful to convert such figures in EPS
format or in various other vector graphic formats.
PDL (``Perl Data Language'') gives standard perl the ability to
COMPACTLY store and SPEEDILY manipulate the large N-dimensional data
arrays which are the bread and butter of scientific computing.
The idea is to turn perl in to a free, array-oriented, numerical
language in the same sense as commerical packages like IDL and
MatLab. One can write simple perl expressions to manipulate entire
numerical arrays all at once. For example, using PDL the perl variable
$a can hold a 1024x1024 floating point image, it only takes 4Mb of
memory to store it and expressions like $a=sqrt($a)+2 would manipulate
the whole image in a few seconds.
A simple interactive shell (perldl) is provided for command line use
together with a module (PDL) for use in perl scripts.