Chapter 1
Performance Analysis of MPI Programs ¹

Ed Karrels² - Ewing Lusk³

Abstract:

The Message Passing Interface (MPI) standard has recently been completed. MPI is a specification for a library of functions that implement the message-passing model of parallel computation. One novel feature of MPI is its very general ``profiling interface,'' that allows users to attach assorted profiling tools to the MPI library even though they do not have access to the MPI source code. We describe the MPI profiling interface and describe three profiling libraries that make use of it. These libraries are distributed with the portable, publicly available implementation of MPI.