Introduction

PLE is a libary designed to simplify coupling of distributed parallel computational codes. It is maintained as a part of Code_Saturne, EDF's general purpose Computational Fluid Dynamics (CFD) software, but it may also be used with other tools, and is distributed under a broader licence (LGPL instead of GPL).

PLE provides support for 2 categories of tasks: synchronizing parallel codes at predifined points, and enabling parallel mapping of points to meshes, and transfer of variables using this mapping.

PLE Coupling API

The ple_coupling_...() functions allow identifying applications and defining MPI communicators necessary to the ple_locator_...() functions, as well as providing each of a set of coupled codes with info on the other code's time steps, convergence status, and other synchronization data at predifined points (usually once per time step).

PLE Locator subset

The ple_locator_...() functions allow mapping points to a mesh in parallel, given serial functions providing this functionnality for the associated data structures, then exchanging variables using this mapping.