Silicon Graphics, Inc. Presented by: Open|SpeedShop ™ A Dyninst Based Performance Tool Overview & Status Jim Galarowicz Manager - SGI Tools group Bill Hachfeld Steve Collins

Trademark Acknowledgements Intel, Intel Inside (logos) and Itanium are trademarks of Intel Corporation in the United States, other countries, or both. Linux is a trademark of Linus Torvalds in the United States, other countries or both. Qt and the Qt logo are trademarks of Trolltech in Norway, the United States and other countries. Open|SpeedShop, SGI SpeedShop, IRIX, SGI and SGI Altix are trademarks of Silicon Graphics Inc. AIX and PowerPC are trademarks or registered trademarks of International Business Machines Corporation in the United States, other countries, or both. Tru64 is a trademark of Hewlett-Packard Corporation. AMD, the AMD Arrow logo,AMDOpteron, and combinations thereof, are trademaks of Advanced Micro Devices, Inc. All other trademarks mentioned herein are the property of their respective owners

Presentation Agenda Open|SpeedShop ™ Presentation Agenda: –Project Overview –Design Goals –Design Overview

Project Overview What is Open|SpeedShop ™ ? –Open Source Performance Tool Comprised of Based on SGI® Speedshop ™ software concepts for the IRIX® operating system Developed for Multi-Platform Support Implemented Using Open Source Components –DOE/NNSA co-funded via ASC (Advanced Simulation and Computing Program) PathForward –Partnering with Universities of Wisconsin & Maryland Schedule –Project Began: July, 2004 –Quarterly Milestone Releases –First Development Phase Ends: mid-2006

Design Goals Easy to Use –Don’t have to be a Computer Scientist or Computer Engineer What on earth is call stack sampling? Why would I use it? –GUI, Command Line, Batch Scheduled -- Your Choice! Portable –Platform Independent Use components that already support the platforms of interest Some recoding may be necessary if using unique features of a particular platform Scalable –Thousands of Processors ASC laboratory systems already use 8192 processors. Future systems even larger. SGI® Altix® system installed at a customer site has processors. –Hundreds of Shared Libraries Some SGI customers load 300+ shared libraries.

Design Goals (Continued) Extensible –Gathering New Types of Performance Data –New Views of Performance Data Supportable –Tested & Stable Testing done from the beginning. Not an afterthought! Test suites delivered with tool –Simple Installation Troubleshooting tools assist in installation and configuration. Reuse –Use Open Source Tools When Possible Don’t reinvent the wheel! –Keeping in Mind Licensing Requirements

Design Overview Foundation of Open Source Components –Core Components (shown here) –Build System (Autoconf, Automake, Libtool, Make & GCC) –Source Control (CVS) –Testing (Python) Layered Approach –Open Source OS-Dependent Layer –Non-Monolithic to Encourage Reuse –Higher Levels of Abstraction Going Up Extensible via Plugin Modules –Support New Data & Views –Vendor Differentiation

Design Overview: Dyninst Universities of Wisconsin & Maryland – Provides –Process Control –Instrumentation of Unmodified Binaries –Symbol Table Information Status –Supports Most Platforms of Interest AIX® /PowerPC®, IRIX® /MIPS®, Linux® /Intel® IA-32, Linux® /Intel® IA64, Tru64™/Alpha –Additional Platform Support Planned –Additional Compiler Support Planned

Design Overview: DPCL Open Source Project – Provides –Dyninst’s Capabilities Across a Cluster –Transport of Performance Data Status –Supports Some Platforms of Interest AIX/Power, Linux/IA32, Linux/IA64 –Needs Better Per-Line Symbol Information –Needs Better Shared Library Support –Needs Scalability Enhancements –Needs Integration of Hybrid changes –Needs Integration of SGI changes/fixes

Design Overview: SQLite Open Source Project – Provides –In-Process Relational Database Engine –Single-File Databases Up to 2Tb –Queries Specified Using SQL –No Complex Configuration Status –Supports Major Platforms of Interest AIX/Power, IRIX/MIPS, Linux/IA32, Linux/IA64, Linux/AMD Opteron ™, Tru64/Alpha –Needs Little to No Enhancement

Design Overview: PAPI University of Tennessee – Provides –Access to CPU Performance Counters –Cross-Platform API Status –Supports Major Platforms of Interest AIX/Power, IRIX/MIPS, Linux/IA32, Linux/IA64, Linux/AMD Opteron, Tru64/Alpha –May Need Better Per-Thread Support

Design Overview: Python & Boost.Python Open Source Projects – – Provides –Object-Oriented Scripting Language –Extensibility via C/C++ Simple Generation of Wrappers (Boost.Python) –Script-Driven Testing Environment Status –Supports Major Platforms of Interest AIX/Power, IRIX/MIPS, Linux/IA32, Linux/IA64, Linux/AMD Opteron, Tru64/Alpha –Needs Little to No Enhancement

Design Overview: Qt® Trolltech AS – Provides –Object-Oriented GUI Toolkit –GUI Builder –HTML Help System –Internationalization Support –Cross-Platform API Status –Supports Major Platforms of Interest AIX/Power, IRIX/MIPS, Linux/IA32, Linux/IA64, Linux/AMD Opteron, Tru64/Alpha –Needs Little to No Enhancement Qt is trademark of Trolltech in Norway, the United States and other countries.

Design Overview: Framework Provides –Process Control –Performance Data Collection Abstractions Collectors, Parameters, Metrics –Symbol Table Caching –Data Management & Caching –Extensibility via Collector Plugins Simplified Instrumentation –Asynchronous Operation –C++ API Status –Design Completed –Mostly Implemented

Design Overview: UI Semantic Routines Provides –Common Performance Tool Operations Create Process, Attach to Thread Start/Stop Thread Experiment Management/Selection Get/Set Parameters Start/Stop Data Collection Save/Restore Performance Data –Framework State Management Status –Most of Command Set Designed –Partially Implemented

Design Overview: CLI Provides –Parsing of Complex Commands –Logging of Commands –Replay of Logged Commands –Extensibility via Command Plugins Status –Command Set Partially Defined Needs Usability Study –Partially Implemented

Design Overview: GUI Provides –Display Panel Management –Process Selection & Control –Experiment Selection & Control –Annotated Source Views –Sorted Lists (e.g. “Top 5 Functions”) –Data Comparisons Thread vs. Thread Pre-Optimization vs. Post-Optimization –Wizards to Guide Novice User –Extensibility via Panel Plugins Status –Initial Usability Study completed –Wizards & Workflow Prototyped Needs Additional Usability Study –Partially Implemented

Milestones Open/SpeedShop ™ Milestones –Infrastructure deliveries in September and December, 2004 –PC sampling experiment delivered to DOE & partners on 3/14/05 –Additional Experiments to delivered one per quarter – proposed schedule User Time 2 nd Quarter 2005 Hardware Counter3 rd Quarter 2005 Floating Point Exception4 th Quarter 2005 Input/Output tracing1 st Quarter 2006 MPI call tracing2 nd Quarter 2006 –Support for additional platforms

Questions Questions: Jim Galarowicz Steve Collins