Software for Large-scale Unconstrained Optimization
CG+ is a Conjugate Gradient code for solving large-scale, unconstrained, nonlinear
optimization problems. CG+ implements three different versions of the Conjugate
Gradient method: the Fletcher-Reeves method, the Polak-Ribiere method, and the
positive Polak-Ribiere method (Beta always non-negative). The code has been
developed at the Optimization Technology Center, a joint venture of Argonne National
Laboratory and Northwestern University.
The current release is version 1.1. The distribution file was
last changed on 04/17/00.
Downloading and Installing CG+
You are welcome to grab the full Unix distribution, containing source
code, makefile, and user guide.
CLICK HERE TO DOWNLOAD
THE CG+ DISTRIBUTION FILE
To install, first type
to produce a file CG+.1.1.tar. (If your system doesn't have
the gunzip utility, you'll need to install it.
tar file for gzip.)
tar -xvf CG+.1.1.tar
which creates a subdirectory CG+ and puts the source code, makefile and user guide
in that subdirectory.
Richard Waltz .