Experiences Implementing the MPI Standard on Sandia's Lightweight Kernels

Abstract

This technical report describes some lessons learned from implementing the Message Passing Interface (MPI) standard, and some proposed extensions to MPI, at Sandia. The implementations were developed using Sandia-developed lightweight kernels running on the Intel Paragon and Intel TeraFLOPS platforms. The motivations for this research are discussed, and a detailed analysis of several implementation issues is presented. Acknowledgment Appreciation is extended to the following people for contributing to this research: Lee Ann Fisk, Tramm Hudson, Arthur B. Maccabe, Kevin McCurley, Lance Mumma, Rolf Riesen, Lance Shuler, David van Dresser, and Stephen Wheat. In addition, the authors would like to thank Jeff Brown, Pang Chen, and David Womble for useful discussions. Contents Introduction 6 Background 6 MPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 MPI-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..