descriptionlattice point enumeration library
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last changeWed, 5 Aug 2015 11:48:59 +0000 (5 13:48 +0200)
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barvinok is a library for counting the number of integer points
in parametric and non-parametric polytopes as well as projections
of such sets.
For parametric polytopes the count is represented by either
an explicit function or a generating function.
The first comes in the shape of a piece-wise step-polynomial.
This is a generalization of both Ehrhart quasi-polynomials
and vector partition functions.
The second is a generalization of an Ehrhart series.

This library shares some functionality with LattE
and uses PolyLib (included), NTL (
If you have cloned the git repository, you need to run
	git submodule init
	git submodule update
to get the submodules and create the configure scripts.

Additionally, the following packages can optionally be used
- Omega+ (
- GLPK (

NTL needs to have been compiled with GMP support.
That is, you have to specify
NTL also needs to have been compiled in ISO mode.
For versions older than 5.4, this means you need an additional

Suppose you want to install everything in /opt,
Then you configure/compile NTL using

cd src
./configure NTL_GMP_LIP=on PREFIX=/opt GMP_PREFIX=/path/to/gmp
make install

Configure this library using

./configure --prefix=/opt --with-gmp-prefix=/path/to/gmp --with-ntl-prefix=/opt

If you want shared libraries, then configure with the
--enable-shared-barvinok option.
Note that this doesn't work on some systems because we link in libntl, which
is only available as a static library.
Also note that if you have previously installed a shared library of an older
version of barvinok, and you do not install one for this version, then the
linker may pick up the old shared library rather than the new static library.

If you want to compile and use the included pet library, then
you need the following packages:
- libyaml (
- LLVM/clang (
Additionally, you need to configure with the --with-pet=bundled option.
See pet/README for more information.


make check
make install

If you want to put any one of these packages in the default location
(typically /usr/local), then the prefix argument can be omitted.
For more information on other arguments,

./configure --help

The input format of barvinok_enumerate is the same as that
of testehrhart from the PolyLib distribution.
See the PolyLib manual, barvinok_enumerate.c or the
examples in tests/ehrhart/ .

Note that the fractional representation is subject to change.

The library supports three specialization algorithms.
The first performs a direct specialization using a random vector.
The second performs a "depth-first" incremental specialization.
The third performs a "breadth-first" incremental specialization.

The first is usually the fastest, but can fail if the random
vector happens to be chosen incorrectly.
The incremental algorithms should never fail, but can be slower,
in some cases by quite a bit.  The breadth-first version should
be faster than the depth-first version, especially on polytopes
of moderate dimension with a lot of "structure", but can require
more memory.

For bug reports, feature requests and questions,
2015-08-05 Sven Verdoolaegedoc: update documentation of "last" operationmaster
2015-07-31 Sven Verdoolaegeupdate isl for change in isl_map_gist
2015-07-24 Sven Verdoolaegeupdate pet for support for recent clangs
2015-07-24 Sven Verdoolaegeupdate isl for support for recent clangs
2015-07-18 Sven Verdoolaegehandle change in internal representation of NTL
2015-07-18 Sven Verdoolaegeassume NTL has been compiled in ISO mode
2015-07-18 Sven extract out AX_CHECK_NTL
2015-06-16 Sven Verdoolaegebarvinok 0.38barvinok-0.38
2015-06-16 Sven Verdoolaegeupdate AUTHORS
2015-06-16 Sven Verdoolaegeupdate pet to version 0.07
2015-06-16 Sven Verdoolaegereplace isl_{,in}equality_alloc by isl_constraint_alloc...
2015-06-16 Sven Verdoolaegeupdate isl to version 0.15
2015-06-16 Sven Verdoolaegeiscc: parse_file: return schedule in schedule tree...
2015-06-16 Sven Verdoolaegeiscc: drop schedule_forest
2015-06-13 Sven Verdoolaegeiscc: schedule: return schedule in schedule tree repres...
2015-06-13 Sven Verdoolaegeiscc: allow implicit conversion from schedule to union map
5 months ago barvinok-0.38 barvinok 0.38
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