Intel® Trace Analyzer and Collector User and Reference Guide

Download PDF
ID 767272
Date 10/31/2024
Public
Document Table of Contents
Document Table of Contents x
Intel® Trace Analyzer and Collector User and Reference Guide
Intel® Trace Analyzer and Collector User and Reference Guide x
Introduction Install and Set Up Intel® Trace Analyzer and Collector Trace Your Applications Analyze Your Applications Intel® Trace Collector Reference Intel® Trace Analyzer Reference Notices and Disclaimers
Introduction x
Notational Conventions Get Help
Trace Your Applications x
Tracing Conventional MPI Applications Tracing Failing MPI Applications Tracing OpenSHMEM* Applications Tracing MPI File IO Handling of Communicator Names Tracing MPI Load Imbalance Tracing User Defined Events Configuring the Collector Filtering Trace Data Recording OpenMP* Regions Information Tracing System Calls (Linux* OS) Collecting Lightweight Statistics Recording Source Location Information Recording Hardware Performance Information (Linux* OS) Recording Operating System Counters Tracing Library Calls Correctness Checking Tracing Distributed Non-MPI Applications
Correctness Checking x
Correctness Checking of MPI Applications Running with Valgrind* (Linux* OS) Configuring Error Checks Analyzing the Results Debugger Integration
Debugger Integration x
TotalView* Debugger GNU* Symbolic Debugger Allinea* Distributed Debugging Tool* (DDT*)
Analyze Your Applications x
Starting Intel® Trace Analyzer Intel Trace Analyzer Graphical User Interface Navigating Timelines Concepts Viewing Correctness Checking Reports Comparing Two Trace Files Interoperability with Intel® VTune™ Profiler and Intel® Advisor OpenMP* Regions Display Support OTF2 Format Support
Navigating Timelines x
Zoom Stack
Concepts x
Level of Detail Aggregation Advanced Aggregation Tagging and Filtering
Viewing Correctness Checking Reports x
Event Timeline Correctness Checking Reports Qualitative Timeline Correctness Checking Reports Detailed Dialog
Comparing Two Trace Files x
Mappings in Comparison Views Comparison Charts
Mappings in Comparison Views x
Mapping of Processes Mapping of Functions
Comparison Charts x
Comparison Function Profile Comparison Message Profile Comparison Collective Operations Profile
Intel® Trace Collector Reference x
API Reference Configuration Reference Correctness Checking Errors Structured Tracefile Format stftool Utility Time Stamping Secure Loading of Dynamic Link Libraries* on Windows* OS
API Reference x
Initialization, Termination and Control Defining and Recording Source Locations Defining and Recording Functions or Regions Defining and Recording Scopes Defining Groups of Processes Defining and Recording Counters Recording Communication Events Additional API Calls in libVTcs C++ API
Initialization, Termination and Control x
VT_initialize VT_finalize VT_getrank VT_registerthread VT_registernamed VT_registerprefixed VT_getthrank VT_traceon VT_traceoff VT_tracestate VT_symstate VT_flush VT_timestamp VT_timestart VT_setfinalizecallback VT_getdescription VT_countsetcallback
Defining and Recording Functions or Regions x
New Interface Old Interface State Changes
C++ API x
VT_FuncDef Class Reference VT_SclDef Class Reference VT_Function Class Reference VT_Region Class Reference
Configuration Reference x
Configuration File Format Protocol File Configuration Options
Configuration Options x
ACTIVITY ALTSTACK AUTOFLUSH CHECK CHECK-LEAK-REPORT-SIZE CHECK-MAX-DATATYPES CHECK-MAX-ERRORS CHECK-MAX-PENDING CHECK-MAX-REPORTS CHECK-MAX-REQUESTS CHECK-SUPPRESSION-LIMIT CHECK-TIMEOUT CHECK-TRACING CLUSTER COMPRESS-RAW-DATA COUNTER CURRENT-DIR DEADLOCK-TIMEOUT DEADLOCK-WARNING DEMANGLE DETAILED-STATES ENTER-USERCODE ENVIRONMENT EXTENDED-VTF FLUSH-PID FLUSH-PREFIX GROUP HANDLE-SIGNALS INTERNAL-MPI KEEP-RAW-EVENTS LOGFILE-FORMAT LOGFILE-NAME LOGFILE-PREFIX LOGFILE-RANK MEM-BLOCKSIZE MEM-FLUSHBLOCKS MEM-INFO MEM-MAXBLOCKS MEM-MINBLOCKS MEM-OVERWRITE NMCMD OS-COUNTER-DELAY PCTRACE PCTRACE-CACHE PCTRACE-FAST PLUGIN PROCESS PROGNAME PROTOFILE-NAME STATISTICS STATE STF-PROCS-PER-FILE STF-USE-HW-STRUCTURE STOPFILE-NAME SYMBOL SYNC-MAX-DURATION SYNC-MAX-MESSAGES SYNC-PERIOD SYNCED-CLUSTER SYNCED-HOST TIME-WINDOWS (Experimental) TIMER TIMER-SKIP UNIFY-COUNTERS UNIFY-GROUPS UNIFY-SCLS UNIFY-SYMBOLS VERBOSE VT_START_PAUSED VT_COMPRESS_TRACE
Correctness Checking Errors x
Supported Errors How the Collection Works
How the Collection Works x
Parameter Checking Premature Exit Overlapping Memory Detecting Illegal Buffer Modifications Buffer Given to MPI Cannot Be Read or Written Distributed Memory Checking Illegal Memory Access Request Handling Datatype Handling Buffered Sends Deadlocks Checking Message Transmission Datatype Mismatches Data Modified during Transmission Checking Collective Operations Freeing Communicators
Structured Tracefile Format x
STF Components Single-File STF Configuring STF
stftool Utility x
stftool Utility Options convert delete-raw-data dump extended-vtf logfile-format logfile-name matched-vtf merge move print-errors print-files print-reports print-statistics print-threads remove request sumdata ticks verbose Expanded ASCII output of STF Files
Time Stamping x
Clock Synchronization Choosing a Timer
Choosing a Timer x
gettimeofday/_ftime QueryPerformanceCounter CPU Cycle Counter Normalized CPU Cycle Counter MPI_Wtime() High Precision Event Timers POSIX* clock_gettime
Intel® Trace Analyzer Reference x
Graphical User Interface Reference Intel® Trace Analyzer Command Line Interface Reference Filter Expression Grammar otf2-to-stf Utility
Graphical User Interface Reference x
Welcome Page Summary Page Main Menu Bar View Menu Bar View Bars Charts Dialogs Settings
Main Menu Bar x
File Menu Options Menu Project Menu  Windows Menu Help Menu
View Menu Bar x
View Charts Navigate Advanced Layout Comparison Menu
Advanced x
Tagging Specific Events Filtering Events Simulating Ideal Communication Checking Application Imbalance Aggregating Results Aggregating Functions Creating Command Line for Intel® VTune™ Profiler and Intel® Advisor
View Bars x
Toolbar Trace Map Status Bar
Charts x
Event Timeline Qualitative Timeline Quantitative Timeline Counter Timeline Function Profile Message Profile Collective Operations Profile Performance Assistant Common Chart Features
Event Timeline x
Context Menu Filtering and Tagging
Qualitative Timeline x
Context Menu Filtering and Tagging
Quantitative Timeline x
Context Menu Filtering and Tagging
Counter Timeline x
Context Menu Filtering and Tagging
Function Profile x
Flat Profile Load Balance Call Tree Call Graph Context Menu Filtering and Tagging Function Profile Settings
Message Profile x
Context Menu Filtering and Tagging Aggregation Message Profile Settings
Collective Operations Profile x
Context Menu Filtering and Tagging Collective Operations Profile Settings
Dialogs x
Process Aggregation Function Aggregation Function Group Color Editor Filtering Dialog Box Tagging Dialog Box Idealization Dialog Box Imbalance Diagram Dialog Box Trace Merge Dialog Box  Details Dialog Box Source View Dialog Time Interval Selection Configuration Dialogs Find Dialog Box Command line for Intel® VTune™ Profiler and Intel® Advisor Dialog Box OTF2 to STF Conversion Dialog Box Configuration Assistant
Process Aggregation x
Comparison Mode
Function Aggregation x
Comparison Mode
Filtering Dialog Box x
Building Filter Expressions Using Graphical Interface Building Filter Expressions Manually Filter Expressions in Comparison Mode
Details Dialog Box x
Detailed Attributes of Function Events Detailed Attributes of Message Events Detailed Attributes of Collective Operation Events
Configuration Dialogs x
Load Configuration File Dialog Edit Configuration File Dialog
Settings x
Preferences Font Settings Number Formatting Settings
Preferences x
General Preferences Tracefile Preferences Event Timeline Settings Qualitative Timeline Settings Quantitative Timeline Settings Counter Timeline Settings
Notices and Disclaimers x
Appendix A Copyright and Licenses
Intel® Trace Analyzer and Collector User and Reference Guide

stftool Utility Options

convert

Syntax:--convert [<filename>]

Default:off

Description: Converts the entire file into the file format specified with --logfile-format or the filename suffix. Options that normally select a subset of the trace data are ignored when this low-level conversion is done. Without this flag writing is restricted to ASCII format, while this flag can also be used to copy any kind of STF trace.

delete-raw-data

Syntax:--delete-raw-data

Default:off

Description: Sub-option to --merge. Deletes or removes the given raw trace after merging.

dump

Syntax:--dump

Default:off

Description: A shortcut for --logfile-name - and --logfile-format ASCII, that is, it prints the trace data to stdout.

extended-vtf

Syntax:--extended-vtf

Default:off in Intel Trace Collector, on in stftool

Description: Several events can only be stored in STF, but not in VTF. Intel® Trace Collector libraries default to writing valid VTF trace files and thus skip these events. This option enables writing of non-standard VTF records in ASCII mode that Intel® Trace Analyzer would complain about. In the stftool the default is to write these extended records, because the output is more likely to be parsed by scripts rather than by the Intel Trace Analyzer.

logfile-format

Syntax:--logfile-format [ASCII|STF|STFSINGLE|SINGLESTF]

Default:STF

Description: Specifies the format of the tracefile. ASCII is the traditional Vampir* file format where all trace data is written into one file. It is human-readable.

The Structured Trace File (STF) is a binary format which supports storage of trace data in several files and allows Intel® Trace Analyzer to analyze the data without loading all of it, so it is more scalable. Writing it is only supported by Intel® Trace Collector.

One trace in STF format consists of several different files which are referenced by one index file (.stf). The advantage is that different processes can write their data in parallel (see STF-PROCS-PER-FILE, STF-USE-HW-STRUCTURE). SINGLESTF rolls all of these files into one (.single.stf), which can be read without unpacking them again. However, this format does not support distributed writing, so for large program runs with many processes the generic STF format is better.

logfile-name

Syntax:--logfile-name <file name> 

Description: Specifies the name for the tracefile containing all the trace data. Can be an absolute or relative pathname; in the latter case, it is interpreted relative to the log prefix (if set) or the current working directory of the process writing it.

If unspecified, then the name is the name of the program plus .avt for ASCII, .stf for STF and .single.stf for single STF tracefiles. If one of these suffices is used, then they also determine the logfile format, unless the format is specified explicitly.

In the stftool the name has to be specified explicitly, either by using this option or as argument of the --convert or --move switch.

matched-vtf

Syntax:--matched-vtf

Default:off

Description: When converting from STF to ASCII-VTF communication records are usually split up into conventional VTF records. If this option is enabled, an extended format is written, which puts all information about the communication into a single line.

merge

Syntax:--merge [<merged trace name>]

Default:off

Description: Merges the given raw trace. When you use the --merge option with the --delete-raw-data option, such configuration deletes the given raw trace after merging. When you use --merge option with the --sumdata option, such configuration creates additional Summary Data files for the given unmerged trace.

move

Syntax:--move [<file/dirname>]

Default:off

Description: Moves the given file without otherwise changing it. The target can be a directory.

print-errors

Syntax:--print-errors

Default:off

Description: Prints the errors that were found in the application.

print-files

Syntax:--print-files

Default:off

Description: Lists all components that are part of the given STF file, including their size. This is similar to ls -l, but also works with single-file STF.

print-reports

Syntax:--print-reports

Default:off

Description: Prints the Message Checker reports of the input file to stdout.

print-statistics

Syntax:--print-statistics

Default:off

Description: Prints the precomputed statistics of the input file to stdout.

print-threads

Syntax:--print-threads

Default:off

Description: Prints information about each native thread that was encountered by the Intel® Trace Collector when generating the trace.

remove

Syntax:--remove

Default:off

Description: Removes the given file and all of its components.

request

Syntax:--request <type>, <thread triplets>, <categories>, <window>

Description: Restricts the data written into the new trace to the one that matches the arguments. If a window is given (in the form <timespec>:<timespec> with at least one unit descriptor), data is restricted to this time interval. It has the usual format of a time value, with one exception: the unit for seconds s is required to distinguish it from a thread triplet; in other words, use 10s instead of just 10. The <type> can be any kind of string in single or double quotation marks, but it has to identify uniquely the kind of data. Valid <categories> are FUNCTIONS, SCOPES, FILEIO, COUNTERS, MESSAGES, COLLOPS, ERRORS and REQUESTS.

All of the arguments are optional and default to all threads, all categories and the whole time interval. They can be separated by commas or spaces and it is possible to mix them as desired. This option can be used more than once and then data matching any request is written.

sumdata

Syntax:--sumdata <output trace name>

Default:off

Description: Forces creation of additional Summary Data files for the given trace.

You can use the --sumdat option with or without --merge option. Thus, there can be the following three scenarios:

  1. --merge<output trace> Merges the given unmerged trace and creates output merged trace.

  2. --sumdata<output trace> Creates Summary Data files for the given merged trace.

    NOTE:
    In this scenario, only Summary Data files is created. No output trace is generated.

  3. --merge --sumdata<output trace> Merges the given unmerged trace; creates output merged trace and the Summary Data files for this output trace.

ticks

Syntax:--ticks

Default:off

Description: Setting this option to on lets stftool interpret all timestamps as ticks (rather than seconds, milliseconds and so on). Given time values are converted into seconds and then truncated (floor). The clock ticks are based on the nominal clock period specified by the CLKPERIOD header, just as the time stamps printed by the stftool for events.

verbose

Syntax:--verbose [on|off|<level>]

Default:on

Description: Enables or disables additional output on stderr. <level> is a positive number, with larger numbers enabling more output:

  1. 0 (= off) disables all output

  2. 1 (= on) enables only one final message about generating the result

  3. 2 enables general progress reports by the main process

  4. 3 enables detailed progress reports by the main process

  5. 4 the same, but for all processes (if multiple processes are used at all)

Levels higher than 2 may contain output that only makes sense to the developers of Intel® Trace Collector.

Parent topic: stftool Utility
Level Two Title