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Debugging Global Arrays Applications Figure 104: Question Window for Global Arrays Program Figure 105: Tools > Global Arrays Window After your program hits a breakpoint, use the Tools > Global Arrays command to begin inspecting your program’s global arrays.TotalView displays the following window. CLI: dga The arrays named in this window are displayed using their C and Fortran type names. Diving on the line that contains the type definition tells TotalView to display Variable Windows that contains information about that array. After TotalView displays this information, you can use other standard commands and operations on the array. For example, you can use the slice and filter operations and the commands that visualize, obtain statistics, and show the nodes from which the data was obtained. If you inadvertently dive on a global array variable from the Process Window, TotalView does not know that it is a component of a global array. If, however, you do dive on the variable, you can cast the variable into a global array using either $ga for a C Language cast or $GA for a Fortran cast. 150 Chapter 7: Setting Up Parallel Debugging Sessions
Debugging PVM (Parallel Virtual Machine) and DPVM Applications Debugging PVM (Parallel Virtual Machine) and DPVM Applications You can debug applications that use the Parallel Virtual Machine (PVM) library or the HP Alpha Tru64 UNIX Parallel Virtual Machine (DPVM) library with TotalView on some platforms. TotalView supports ORNL PVM Version 3.4.4 on all platforms and DPVM Version 1.9 or later on the HP Alpha platform. See the TotalView Platforms document for the most up-to-date information regarding your PVM or DPVM software. For tips on debugging parallel applications, see “Debugging Parallel Applications Tips” on page 124. Topics in this section are: � “Supporting Multiple Sessions” on page 151 � “Setting Up ORNL PVM Debugging” on page 152 � “Starting an ORNL PVM Session” on page 152 � “Starting a DPVM Session” on page 153 � “Automatically Acquiring PVM/DPVM Processes” on page 154 � “Attaching to PVM/DPVM Tasks” on page 155 Supporting Multiple Sessions When you debug a PVM or DPVM application, TotalView becomes a PVM tasker. This lets it establish a debugging context for your session. You can do the following: � You can run TotalView PVM or DPVM debugging session for a user and for an architecture; that is, different users can’t interfere with each other on the same computer or same computer architecture. One user can start TotalView to debug the same PVM or DPVM application on different computer architectures. However, a single user can’t have multiple instances of TotalView debugging the same PVM or DPVM session on a single computer architecture. For example, if you start a PVM session on Sun 5 and HP Alpha computers. You must start two TotalView sessions: one on the Sun 5 computer to debug the Sun 5 portion of the PVM session, and one on the HP Alpha computer to debug the HP Alpha portion of the PVM session. These two TotalView sessions are separate and don’t interfere with one another. � In one TotalView session, you can run either a PVM application or a DPVM application, but not both. However, if you run TotalView on an HP Alpha, you can have two TotalView sessions: one debugging PVM and one debugging DPVM. TotalView Reference Guide: version 8.7 151
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TotalView Users Guide version 8.7
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Book Overview part I - Introduction
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Contents About This Book TotalView
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Setting Preferences, Options, and X
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Installation Notes ................
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Starting Processes and Threads ....
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Displaying Allocated Arrays........
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Using Built-In Statements .........
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Figures Chapter 1: Getting Started
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Figure 76. File > Preferences: Bulk
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Chapter 13: Using Groups, Processes
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About This Book This book describes
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How to Use This Book The informatio
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Conventions and what you should cli
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Contacting Us Contacting Us Please
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Part I: Introduction This part of t
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Getting Started Figure 1: The Proce
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Getting Started Figure 3: Setting C
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Getting Started Figure 5: Diving on
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Debugging Multi-process and Multi-t
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Using Groups and Barriers Figure 10
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Introducing the CLI Introducing the
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A Couple of Processes Figure 14: A
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Threads Figure 18: Threads Threads
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Types of Threads Figure 20: Four Pr
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Organizing Chaos Figure 23: User, S
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Organizing Chaos Figure 25: Five Pr
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Creating Groups Figure 27: Step 1:
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Creating Groups Figure 30: Step 5:
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Simplifying What You’re Debugging
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Simplifying What You’re Debugging
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c h a p t e r Getting Started with
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Figure 36: Remote Display Client Se
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Figure 38: Asking for Password Usin
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Using Remote Display You can, of co
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Figure 42: Local Data in a Stack Fr
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Figure 43: Access By Options Remote
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Figure 44: Remote Host Information
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Figure 47: Saving a Profile Figure
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c h a p t e r Setting Up a Debuggin
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Starting TotalView customer_compili
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Starting TotalView If you type an e
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Starting TotalView Before Version 6
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Figure 53: Start a New Process Load
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Figure 55: Open a Core File Start a
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Figure 57: Thread > Continuation Si
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Figure 59: Setting Command-Line Opt
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Figure 61: Root Window Showing Proc
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Handling Signals Thread > Continuat
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Setting Search Paths Make your chan
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Figure 65: Select Directory Dialog
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Figure 66: File > Preferences Dialo
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Setting Preferences Dynamic Librari
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Setting Preferences Pointer Dive Th
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Setting Preferences Similarly, docu
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c h a p t e r 5 Setting Up Remote D
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Figure 75: File > Preferences: Laun
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Figure 76: File > Preferences: Bulk
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Figure 77: Manual Launching of Debu
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Starting the TotalView Server Manua
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Disabling Autolaunch Setting Bulk S
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Figure 78: Launching tvdsvr Disabli
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Figure 80: Debugging Session Over a
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c h a p t e r 6 Setting Up MPI Debu
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Page 133 and 134: Debugging MPICH Applications The MP
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Page 137 and 138: Starting MPI Issues Starting TotalV
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Page 145 and 146: Debugging HP MPI Applications This
Page 147 and 148: Debugging IBM MPI Parallel Environm
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Page 151 and 152: Debugging LAM/MPI Applications the
Page 153 and 154: Debugging SiCortex MPI Applications
Page 155 and 156: Debugging Sun MPI Applications mapp
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Page 159 and 160: Debugging Parallel Applications Tip
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Page 163 and 164: c h a p t e r 7 Setting Up Parallel
Page 165 and 166: Debugging OpenMP Applications � T
Page 167 and 168: Figure 95: OpenMP Shared Variable T
Page 169 and 170: Figure 96: OpenMP THREADPRIVATE Com
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Page 173 and 174: Figure 100: Root Window for a Cell
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Page 177 and 178: Debugging Cray XT Applications For
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Page 181: Debugging Global Arrays Application
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Page 195 and 196: Part III: Using the GUI The two cha
Page 197 and 198: c h a p t e r Using TotalView Windo
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Page 201 and 202: Figure 115: Sorted and Aggregated R
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Page 211 and 212: c h a p t e r 9 Visualizing Program
Page 213 and 214: Command Summary Visualizing Array D
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Using the CLI Interface Starting th
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# source make_actions.tcl # dload f
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About CLI Output About CLI Output A
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Using Namespaces Using Namespaces C
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How Parallelism Affects Behavior Ho
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Controlling Program Execution Typic
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c h a p t e r 11 Seeing the CLI at
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Initializing an Array Slice Initial
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Writing an Array Variable to a File
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} } Automatically Setting Breakpoin
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Part V: Debugging The chapters in t
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c h a p t e r Debugging Programs 12
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Figure 141: View > Lookup Variable
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Figure 146: View > Lookup Function
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Manipulating Processes and Threads
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Figure 150: The Threads Tab Updatin
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Why breakpoints don’t work (part
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Examining Groups Manipulating Proce
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Manipulating Processes and Threads
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Figure 155: Stepping Illustrated Us
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Executing to a Selected Line If the
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Killing (Deleting) Programs 3 Conti
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Figure 158: Tools > Debugger Loaded
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Figure 160: File > Preferences: Dyn
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Setting the Program Counter some co
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c h a p t e r Using Groups, Process
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Stepping (Part I) � Set breakpoin
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Understanding Thread Width Stepping
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Understanding Process/Thread Sets S
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Specifying Arenas Setting Process a
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Figure 163: Width Specifiers Settin
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Setting Group Focus � Lockstep Gr
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Specifier Specifies Setting Group F
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‘All’ Does Not Always Mean ‘A
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The following are some additional e
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Setting Group Focus Although the lo
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Naming Lists with Inconsistent Widt
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Using P/T Set Operators Using P/T S
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Figure 164: Group > Custom Groups D
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c h a p t e r Examining and Changin
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Figure 167: List and Vector Transfo
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Figure 169: A Tooltip Displaying Va
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Displaying Variables since the vari
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Figure 173: Variable Window Showing
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Displaying Variables Scoping Issues
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Figure 177: Program Browser and Var
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Figure 179: Diving on Local Variabl
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Figure 181: View > Examine Format >
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Figure 184: Variable Window with Ma
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Figure 185: Undive/Redive Buttons F
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Figure 188: Displaying C Structures
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Figure 190: The Tools > Expression
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Figure 193: Expression List Window
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Figure 197: Using Functions in the
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Viewing a List of Variables (or sel
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Figure 199: Using an Expression to
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Figure 200: Three Casts Changing a
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Changing a Variable’s Data Type W
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Changing a Variable’s Data Type T
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Figure 202: Displaying wchar_t Data
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Changing the Address of Variables D
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Figure 204: Displaying C++ Classes
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Figure 205: Diving on a Common Bloc
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Figure 207: Fortran 90 User- Define
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Displaying Thread Objects that has
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Figure 210: Variable Window: Showin
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c h a p t e r Examining Arrays 15 T
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Examining and Analyzing Arrays This
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Figure 213: An Array Slice and an A
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Figure 214: Array Data Filtering by
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Figure 216: Array Data Filtering by
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Figure 218: Array Statistics Window
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Figure 219: Viewing Across Threads
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Visualizing Array Data Visualizing
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c h a p t e r 16 Setting Action Poi
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Figure 222: Action Point Tab Settin
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Figure 224: Setting Breakpoints on
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Figure 227: Ambiguous Function Dial
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Figure 229: Action Point > At Locat
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Figure 232: PC Arrow Over a Stop Ic
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Setting Breakpoints and Barriers at
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Setting Breakpoints and Barriers Ab
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Setting Breakpoints and Barriers Wh
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Defining Eval Points and Conditiona
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Defining Eval Points and Conditiona
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Figure 236: Stopped Execution of Co
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Using Watchpoints Platform Assemble
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Using Watchpoints Computer Constrai
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Watching Memory Using Watchpoints A
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The following is an expression that
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c h a p t e r Evaluating Expression
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Why is There an Expression System?
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Figure 240: Expression List Window:
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Using Programming Language Elements
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Using the Evaluate Window Using the
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Figure 244: Evaluating Information
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Using the Evaluate Window Pseudo Op
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Using Built-in Variables and Statem
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Glossary ACTION POINT: A debugger f
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off the function reference to an ev
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DOPE VECTOR: This is a run time des
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INITIALIZATION FILE: An optional fi
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PARCEL: The number of bytes require
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threads. There are two kinds of ser
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SYMBOL NAME: The name associated wi
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Index Symbols # scope separator cha
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array structure viewing limitations
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context 138 description 140 empty c
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Tools > Watchpoint 10, 378 totalvie
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into a stack frame 174 into a struc
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-file command-line option to Visual
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see alsoshared libraries limitation
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expressions 275 set of arenas 259 s
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PVM groups, unrelated to process gr
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stride elements 334 UPC 158 upper b
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threads model 18 threads tab 230 th
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View > Compilation Scope commands 2
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