Releases: ralna/GALAHAD
Release list
v5.5.1
v5.5.0
In this release, we introduce new packages for solving nonlinear least-squares when the variables are constrained to lie between lower and upper bounds, or are constrained to lie within the intersection of non-overlapping unit simplices. In addition, we provide packages - using either projection or interior-point iteration- for solving the linear least-squares sub-problems that the nonlinear algorithms depend upon. We also provide a number of fixes for issues that arose with other GALAHAD packages. All packages are written in Fortran, but with interfaces to C, Python, Julia and Matlab.
v5.4.0
Version 5.4.0 adds the new packages TREK for the global minimization of a quadratic function within an ellipsoid using extended-Krylov-subspace iteration and NREK for the global minimization of a regularized quadratic function using using extended-Krylov-subspace iteration.
v5.3.0
Version 5.3 adds a new package SSLS for sparse block linear systems, and fully integrates SPRAL's SSIDS sparse solver (CPU version) into GALAHAD; the latter separates a number of dependent SPRAL packages as stand-alone GALAHAD ones, specifically new packages MO, MS, MU and RB. In addition a prototype new NLP solver, EXPO, is exposed for ambitious users, although this is very definitely alpha at the moment. Numerous other small bug fixes and cosmetic changes have been made, the most significant is that the arguments of the C version to TRB have been changed to make it consistent with the rest of GALAHAD's C interfaces. Docs have also been updated.