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7 Using Xtools
This chapter describes how to use xclus, xcxclus, xperf, and xcxperf. This chapter addresses
the following topics:
• “Xtools Overview” (page 76)
• “Using xclus and xcxclus” (page 76)
• “Starting xclus and xcxclus” (page 78)
• “Viewing xclus and xcxclus Displays” (page 81)
— “Viewing xclus (Enhanced) Itanium Icons” (page 82)
— “Viewing xclus (Enhanced) Single-Core and Dual-Core AMD Opteron Node Icons”
(page 83)
— “Viewing xclus(Enhanced) Native Quad-Core AMD Opteron Node Icons” (page 84)
— “Viewing xcxclus (Generic) Node Icons” (page 85)
— “Showing Statistic Names and Descriptions” (page 86)
— “Showing Bandwidth or Utilization Rates” (page 86)
— “Showing HyperTransport Data Statistics or Data and Control Statistics” (page 86)
— “Changing the Refresh Rate” (page 86)
— “Hiding Statistic Values” (page 86)
— “Suspending the Display” (page 86)
— “Modifying the Display Size and Layout” (page 86)
— “Using Enhanced (xclus) Menu Options” (page 87)
— “Using Generic (xcxclus) Menu Options” (page 87)
• “Recording, Replaying, and Plotting xclus and xcxclus Data” (page 89)
• “Starting xperf or xcxperf from xclus or xcxclus” (page 92)
• “Viewing Grouped Nodes” (page 92)
• “Using xperf and xcxperf” (page 94)
• “Starting xperf and xcxperf” (page 94)
• “Viewing xperf and xcxperf Displays” (page 95)
— “Viewing Itanium xperf (Enhanced) Statistics” (page 96)
— “Viewing AMD Opteron xperf (Enhanced) Statistics” (page 98)
— “Viewing xcxperf (Generic) Statistics” (page 101)
— “Displaying Color Legends and Creating Tear-Away Legends” (page 104)
— “Hiding or Showing Graphs” (page 104)
— “Showing I/O Bandwidth or Utilization Rates” (page 104)
— “Showing Cycles Per Instruction or Instructions Per Cycle” (page 104)
— “Modifying Graph Colors and Line Widths” (page 104)
— “Using xperf (Enhanced) Menu Options” (page 104)
— “Using xcxperf (Generic) Menu Options” (page 105)
• “Starting an HPCPI Label from xperf” (page 106)
• “Viewing Generic Data with xclus or xperf” (page 109)
• “Viewing Enhanced Data with xcxclus or xcxperf” (page 110)
• “Xtools Daemons” (page 111)
75
- HP Part Number: 5992-4009 1
- Published: March 2008 1
- Edition: 1 1
- Table of Contents 3
- 4 Table of Contents 4
- Table of Contents 5 5
- 6 Table of Contents 6
- Table of Contents 7 7
- 8 Table of Contents 8
- List of Figures 9
- List of Tables 11
- About This Document 13
- Related Information 14
- Publishing History 14
- HP Encourages Your Comments 15
- 1 Introduction 17
- 18 Introduction 18
- 22 Introduction 22
- 2 Installing HPCPI and Xtools 25
- Installing the Software 26
- Installing the Software 27 27
- Installing the Software 29 29
- Verifying the Installation 30
- Removing the Software 30
- 3 Getting Started with HPCPI 31
- 32 Getting Started with HPCPI 32
- 4 Using HPCPI 35
- Starting the hpcpid Daemon 36
- Selecting Events to Monitor 37
- Commonly Used Event Sets 38
- Event Duty Qualifier 39
- Labeling Data 40
- 42 Using HPCPI 42
- Default Input Data 43
- Flushing Data: hpcpictl flush 43
- HPCPI Header 44
- HPCPI Procedure Header 46
- 48 Using HPCPI 48
- 50 Using HPCPI 50
- HPCPI Utility Options 51
- Specifying Events to Display 52
- Selecting Data by Label 52
- Displaying Raw Values 53
- Limiting the hpcpiprof Output 54
- Additional Options 54
- Using Event Sets 55
- Event Intervals 56
- Multiple Duty Groups 56
- Itanium Instruction Metrics 57
- 5 Using HPCPI Labels 59
- Step 3: Flushing the Data 60
- Label Selectors 62
- -not Operator 63
- -and Operator 63
- -or Operator 63
- -equiv Operator 63
- Operator Syntax 63
- Multiple Labels 64
- Reusing Labels 64
- Comparing Epochs and Labels 64
- Label Examples 65
- Kernel Idle Data: -pid 0 66
- Creating Labels in Programs 67
- Fortran Code Example 68
- Overview 69
- % setenv HPCPIDB ~/hpcpidb 70
- % mkdir -p $HPCPIDB 70
- % hpcpid -create-epoch 70
- Submitting the Job 71
- Collecting Data on One Node 73
- 7 Using Xtools 75
- Xtools Overview 76
- Using xclus and xcxclus 76
- Using xclus and xcxclus 77 77
- Starting xclus and xcxclus 78
- Starting xclus and xcxclus 79 79
- 80 Using Xtools 80
- 82 Using Xtools 82
- 84 Using Xtools 84
- 86 Using Xtools 86
- Recording Data 89
- Replaying Data 89
- Plotting Data 89
- 90 Using Xtools 90
- Viewing Grouped Nodes 92
- Using xperf and xcxperf 94
- Starting xperf and xcxperf 94
- Instructions 96
- Sum I/O B/W 97
- 98 Using Xtools 98
- HTn (HyperTransport Links) 100
- 102 Using Xtools 102
- 106 Using Xtools 106
- 108 Using Xtools 108
- % xclus -generic 109
- % xcxclus -enhanced -apmond 110
- Xtools Daemons 111
- A Product Specifications 113
- 114 Product Specifications 114
- HPCPI Product Limitations 115
- Calls to exec() 116
- Unknown Locations 116
- Mandated Duty Groups 116
- Active Fraction Changes 116
- B HPCPI Quick Reference 117
- Viewing HPCPI Data 118
- C Xtools Quick Reference 119
- Starting xperf or xcxperf 121
- Glossary 123
- 124 Glossary 124
- 126 Index 126
- 128 Index 128
- 130 Index 130
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