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TABLE OF CONTENTS
Preface.................................................................................................................................................................................. vii
Intended Audience.............................................................................................................................................................vii
Supplementary Documentation......................................................................................................................................... vii
Compatibility and Conformance to Standards.................................................................................................................. vii
Organization...................................................................................................................................................................... viii
Conventions........................................................................................................................................................................ ix
Terminology......................................................................................................................................................................... x
Related Publications............................................................................................................................................................x
System Requirements......................................................................................................................................................... x
Chapter 1. Getting Started....................................................................................................................................................1
1.1. Basic Profiling..............................................................................................................................................................1
1.2. Methods of Collecting Performance Data................................................................................................................... 2
1.2.1. Instrumentation-based Profiling........................................................................................................................... 2
1.2.2. Sample-based Profiling........................................................................................................................................3
1.3. Choose Profile Method................................................................................................................................................4
1.4. Collect Performance Data........................................................................................................................................... 4
1.4.1. Profiling Output File............................................................................................................................................. 4
1.4.2. Using System Environment Variables................................................................................................................. 5
1.4.3. Profiling with Hardware Event Counters..............................................................................................................5
1.5. Profiler Invocation and Initialization.............................................................................................................................5
1.6. Application Tuning....................................................................................................................................................... 5
1.7. Troubleshooting........................................................................................................................................................... 6
1.7.1. Prerequisite: Java Virtual Machine...................................................................................................................... 6
1.7.2. Slow Network....................................................................................................................................................... 6
Chapter 2. Using PGPROF................................................................................................................................................... 7
2.1. PGPROF Tabs and Icons Overview........................................................................................................................... 8
2.2. Profile Navigation.........................................................................................................................................................9
2.3. HotSpot Navigation....................................................................................................................................................13
2.4. Sorting Profile Data................................................................................................................................................... 13
2.5. Compiler Feedback....................................................................................................................................................14
2.5.1. Special Feedback Messages.............................................................................................................................15
2.6. Profiling Parallel Programs........................................................................................................................................15
2.6.1. Profiling Multi-threaded Programs..................................................................................................................... 16
2.6.2. Profiling MPI Programs......................................................................................................................................17
2.7. Scalability Comparison.............................................................................................................................................. 19
2.8. Profiling Resource Utilization with Hardware Event Counters.................................................................................. 20
2.8.1. Profiling with Hardware Event Counters (Linux Only)....................................................................................... 21
2.8.2. Analyzing Event Counter Profiles......................................................................................................................21
2.9. Profiling GPU Programs............................................................................................................................................ 22
2.9.1. Profiling OpenACC Programs............................................................................................................................22
PGI Profiler User Guide
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