LPARX: This is a one or more processor copyrighted C++ library written by Scott R. Kohn and Scott B. Baden. The copyright owners are the two authors and The Regents of the University of California. LPARX provides efficient run-time support for dynamic, non-uniform scientific calculations running on MIMD distributed memory architectures. It extends HPF’s data decomposition model to provide support for dynamic, block irregular data structures. LPARX represents data decompositions as first-class objects and expresses data dependencies in a manner which is logically independent of data decomposition and problem dimension.