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LSNNO (Large Scale Nonlinear Network Optimizer) is a line search method where the search direction is obtained by a truncated conjugate gradient technique. The bounds are handled by bending the search direction on the boundary of the feasible domain. It features both Newton and quasi-Newton algorithms.

LSNNO exploits the partially separable structure of many large-scale problems to obtain good efficiency on such problems. In particular, it uses the partitioned updating technique when a quasi-Newton method is chosen.

Current Version:   ??

License Type:   Free

Home Site:

Source Code Availability:

Yes (lsnno.tar.z)

Available Binary Packages:

  • Debian Package: No
  • RedHat RPM Package: No
  • Other Packages: No

Targeted Platforms:

ANSI Fortran

Software/Hardware Requirements:

Fortran Compiler

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