ABACUS is a software system written in C++ that provides a framework for the
implementation of branch-and-bound algorithms using linear programming
relaxations. Cutting planes or columns can be generated dynamically
(branch-and-cut, branch-and-price, branch-and-cut-and-price).
ABACUS allows the software developer to concentrate merely on the problem
specific parts, i.e., the separation of cutting planes, column generation, and
primal heuristics. ABACUS supports the Open Solver Interface (Osi) developed
by the COIN-OR (COmputational INfrastructure for Operations Research) project
which means that every solver supported by OSI can be used to solve the
relaxations.
Moreover, ABACUS provides a variety of general algorithmic concepts, e.g., a
list of different enumeration and branching strategies from which the best
alternative for the user's application can be chosen.
Finally, ABACUS provides many basic data structures and useful tools for the
implementation of such algorithms. It is designed both for general mixed
integer optimization problems and for combinatorial optimization problems. It
unifies cutting plane and column generation within one algorithm framework.
Simple reuse of code and the design of abstract data structures and algorithms
are met by object oriented programming modules.
WWW: http://www.informatik.uni-koeln.de/abacus/
Remove expired ports:
2018-03-31 math/abacus: Unmaintained and has a broken shared library
2018-03-31 audio/muse: Unmaintained upstream, crashes at runtime
2018-03-31 net/paris-traceroute: Legacy paris-traceroute is not supported
anymore. Use net/scamper instead
2018-04-01 net-im/cjc: Depends on expired net-im/py-xmpp
2018-02-28 net-im/py-pyxmpp: Obsoleted in favor of PyXMPP2
Fix usage of ${PERL5}.
${PERL5} points to a specific version of perl, say, perl5.22.1, it is
fine to use it in a ports Makefile to do Perly things, but ports using
it must use ${PERL}, that points to /usr/local/bin/perl so that if the
minor version is updated, the shebang keep working.
While there, make some ports use shebangfix, regen a few patches, and
bump PORTREVISION where a shebang went from PERL5 to PERL.
PR: 205367
With hat: portmgr
Sponsored by: Absolight
math/abacus: unbreak build on 10.1R (clang 3.4.1)
sources/ostream.cc:290:16: error: declaration conflicts with target of using
declaration already in scope
ABA_OSTREAM& endl(ABA_OSTREAM &o)
^
./Include/abacus/ostream.h:48:14: note: target of using declaration
ABA_OSTREAM& endl(ABA_OSTREAM &o);
^
./Include/abacus/ostream.h:50:9: note: using declaration
using ::endl;
^
sources/ostream.cc:293:11: error: 'on_' is a private member of 'ABA_OSTREAM'
if (o.on_) o.out_ << flush;
^
(Only the first 15 lines of the commit message are shown above )
Update the default version of GCC in the Ports Collection from GCC 4.7.4
to GCC 4.8.3.
Part II, Bump PORTREVISIONs.
PR: 192025
Tested by: antoine (-exp runs)
Approved by: portmgr (implicit)
Remove indefinite articles and trailing periods from COMMENT, plus minor
COMMENT typos and surrounding whitespace fixes. A few Makefiles where not
included as they contain Latin-1 characters that break the Phabricator
workflow. Category M.
CR: D306
Approved by: portmgr (bapt)
Update the default version of GCC used in the Ports Collection from
GCC 4.6.4 to GCC 4.7.3. This entails updating the lang/gcc port as
well as changing the default in Mk/bsd.default-versions.mk.
Part II, Bump PORTREVISIONs.
PR: 182136
Supported by: Christoph Moench-Tegeder <cmt@burggraben.net> (fixing many ports)
Tested by: bdrewery (two -exp runs)
Update to libmpc version 1.0.1 which brings the following fixes:
- Switched to automake 1.11.6, see CVE-2012-3386.
- #14669: Fixed extraction of CC from gmp.h.
- Fixed case of intermediate zero real or imaginary part in mpc_fma,
found by hydra with GMP_CHECK_RANDOMIZE=1346362345.
This is on top of the following changes from version 1.0
- Licence change towards LGPLv3+ for the code and GFDLv1.3+ (with no
invariant sections) for the documentation.
- 100% of all lines are covered by tests
- Renamed functions
. mpc_mul_2exp to mpc_mul_2ui
. mpc_div_2exp to mpc_div_2ui
(Only the first 15 lines of the commit message are shown above )
- New port: math/abacus
ABACUS is a software system written in C++ that provides a framework for the
implementation of branch-and-bound algorithms using linear programming
relaxations. Cutting planes or columns can be generated dynamically
(branch-and-cut, branch-and-price, branch-and-cut-and-price).
WWW: http://www.informatik.uni-koeln.de/abacus/
