SpeedShop User's Guide

Table of Contents

About This Guide

About This Revision

1. Introduction to Performance Analysis

Sources of Performance Problems

Fixing Performance Problems

SpeedShop Tools

Using SpeedShop Tools for Performance Analysis

2. Tutorial for C Users

Tutorial Overview

Tutorial Setup

Analyzing Performance Data

3. Tutorial for Fortran Users

Tutorial Overview

Tutorial Setup

Analyzing Performance Data

4. Experiment Types

Selecting an Experiment

usertime Experiment

pcsamp Experiment

ideal Experiment

Hardware Counter Experiments

fpe Trace

5. Collecting Data on Machine Resource Usage

ssusage Syntax

ssusage Results

6. Setting Up and Running Experiments: ssrun

Building Your Executable

Setting Up Output Directories and Files

Using Runtime Environment Variables

Running Experiments

Running Experiments on MPI Programs

Running Experiments on Programs Using Pthreads

Using Calipers

Effects of ssrun

7. Analyzing Experiment Results: prof

Using prof to Generate Performance Reports

Using prof With ssrun

Using prof Options

Generating Reports for Different Machine Types

Generating Reports for Multiprocessed Executables

Generating Compiler Feedback Files

Interpreting Reports

8. Using SpeedShop in Expert Mode: pixie

Using pixie

Obtaining Basic Block Counts

Obtaining Inclusive Basic Block Counts

9. Miscellaneous Commands

Using the thrash Command

Using the squeeze Command

Calculating the Working Set of a Program

Dumping Performance Data Files

Dumping Compiler Feedback Files

Index