LANCELOT_simple, a simple interface for LANCELOT B
N. I. M. Gould , D. Orban and Ph. L. Toint
Report 07/12, Dept Maths, University of Namur -FUNDP, Belgium
We describe LANCELOT_simple, an interface to the LANCELOT B nonlinear
optimization package within the GALAHAD library (Conn, Gould, Toint, 1992)
which ignores problem structure. The result is an easy-to-use Fortran 90
subroutine, with a small number of intuitively interpretable arguments.
However, since structure is ignored, the means of presenting problems to the
solver limited and the choice of algorithmic parameters considerably
restricted, the performance is likely to be sub-optimal. The proposed
interface may nevertheless be useful for users interested in the solution of
simple low-dimensional problems when ease of interface matters more than
actual numerical efficiency.