Abstract

The PALM project aims to implement a dynamic MPMD coupler for parallel
codes. It has originally been designed for oceanographic data
assimilation algorithms, but its application domain extends to every 
kind of parallel dynamic coupling.

The main features of PALM are the dynamic launching of the coupled
components, the full independence of the components from the
application algorithm, the parallel data exchanges with
redistribution and the separation of the physics from the algebraic
manipulations performed by the coupler.

A fully operational SPMD prototype of the PALM coupler has been
implemented and it is now available for research purposes.