liblbfgs/1.10.0

This is a build2 package for the liblbfgs C library. It provides a C port of the implementation of Limited-memory Broyden-Fletcher-Goldfarb-Shanno (L-BFGS) method written by Jorge Nocedal. The original FORTRAN source code is available at: http://www.ece.northwestern.edu/~nocedal/lbfgs.html

The L-BFGS method solves the unconstrainted minimization problem: minimize F(x), x = (x1, x2, ..., xN), only if the objective function F(x) and its gradient G(x) are computable.

Refer to the libLBFGS web site for more information. http://www.chokkan.org/software/liblbfgs/

Usage

To start using liblbfgs in your project, add the following depends value to your manifest, adjusting the version constraint as appropriate:

depends: liblbfgs ^1.1.0

Then import the library in your buildfile:

import libs = liblbfgs%lib{lbfgs}

Importable targets

This package provides the following importable targets:

lib{lbfgs}

Configuration variables

This package provides the following configuration variables:

[bool] config.liblbfgs.use_double ?= true
[bool] config.liblbfgs.use_ieee754 ?= true
[bool] config.liblbfgs.use_sse ?= true

• use_double enables double precision floating point arithmetics.
• use_ieee754 enables optimization routines for IEEE754 floating point values.
• use_sse enable SSE2 optimization routines.