files:

optimization files:

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The LP-problem: f, g, h linear in x
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The LP-problem is often very high-dimensional. Several tools are necessary to deal with such problems. Some are listed here:
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plam-0.1.tar.gz             A free MILP modeling environment using lp_solve as MILP solver and SWI-Prolog

mps_format.txt              The description of the most widely used LP input format

C++DemoProgram.zip          An MPS reader for Windows (virual c++)

qsopt.jar   (Java)          a utility to convert this LP format to (and from) MPS
qsdoc.zip   (Java API)
qsopt.a.zip
qsopt.h

lp2mps.tar.gz               a utility (extracted from lp_solve) to convert the simple LP format to (and from) MPS

abacus-3.0.tar.gz           A general branch&cut library for mixed integer capability (C++)


The following simplex-based solvers allow some or all of the variables to be constrained to attain integer values; all allow input in  MPS format:
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scip-1.00.tgz               Framework for Constraint Integer Programming, links to CPLEX, SOPLEX, or CLP as LP solver (C)

lp_solve_5.5.0.10_c.tar.gz  C source, various binaries, and interfaces

Pascal-MILP-solver.zip      Borland-Pascal sources

bonsaiG.041110.tar.gz       C, B&B, dynamic LP, partial arc consistency algorithm

PURE LP SOLVERS: most allow input in MPS format:
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Clp-1.6.0.tgz               the COIN LP code, simplex (C++)

qsopt.jar   (Java)          Simplex based; library for Windows/Unix, free for research&education
qsdoc.zip   (Java API)
qsopt.a.zip
qsopt.h

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 Exact LP Solvers
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exlp-0.6.0.tar.gz           Rational (exact) primal/dual simplex solver; needs GNU MP (C)

QSopt_ex-1.0.tar.bz2        Rational (exact) primal/dual simplex solver; libraries, executables, some source; MIP capabilities (C)