Organization of this Document

This document is organised as follows:

• Chapter 2, Start-up, decribes the protocol used to initiate communication.
• Chapter 3, Data Transfer Protocol, describes the protocol used to transfer data between two MPI implementations.
• Chapter 4, Collectives, specifies the algorithms to be used in collective operations which span multiple MPI implementations
• Chapter 5, IMPI Conformance Testing, outlines the preliminary design for a Web-based IMPI conformance testing system.