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[Help-glpk] non-official updated version of glpk (4.63 pre-release)

From: Andrew Makhorin
Subject: [Help-glpk] non-official updated version of glpk (4.63 pre-release)
Date: Sat, 01 Jul 2017 14:58:47 +0300

Please see an updated version of glpk here:
(Note that this is *not* an official release.)

In this release:

1. See

2. A "smart" LP perturbation was implemented in the primal simplex
solver. Now LP is perturbed only if it is necessary, and by default
perturbation is not activated.

3. The sum of primal infeasibilites that appears in the terminal output
of the primal simplex solver (as "inf = ...") now corresponds to the
original bounds of variables. This allows to see how much perturbed LP
solution violates the original bounds.

4. The Posix version of glp_time (see glpk/src/env/time.c) was changed
to resolve time_t issue on msys2. 
Thanks to Rob Schroeder <address@hidden> for bug report.

Andrew Makhorin

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