JLP is a linear programming package for solving Model I type forest management planning and conventional LP problems. JLP is designed for management planning systems that generate several treatment schedules for management units and select optimal schedule combinations with linear programming.

"Built-in" constraints of JLP, for example area constraints and domains, reduce the memory needs of actual LP problems compared with general LP packages. Constraints for domains, easy constraint definitions, a control language, subroutine access allowing automated matrix and report generation pre-compiler for flexible generation of versions, etc. are available in JLP in addition to the large problems and the computational efficiency. User defined data input, transformations, report writer and interface routines can be linked to the program.

JLP is written in portable FORTRAN 77 and it runs in several operating system. JLP can be used as a stand-alone software or embedded in an analysis tools, such as the optimisation module MELAOPT in MELA system or norwegian GAYA-JLP.

For further information please contact Reetta Lempinen, reetta.lempinen @ luke.fi, tel: +358 29 532 5354