Standalone GUI: Build Application and Create New Project

Intel® Inspector is a dynamic memory and threading error checking tool for users developing serial and multithreaded applications on Windows* and Linux* operating systems. This topic is part of a tutorial that shows how to find and fix threading errors using the Intel Inspector and a Fortran sample application.

To create an application the Intel Inspector can inspect for threading errors:

Get Software Tools

You need the following tools to try tutorial steps yourself using the nqueens_fortran sample application:

  • Intel Inspector installation package and license

  • .tgz file extraction utility

  • Supported compiler (see Release Notes for more information)

  • Editor

Acquire the Intel Inspector

If you do not already have access to the Intel Inspector, you can download an evaluation copy from http://software.intel.com/en-us/articles/intel-software-evaluation-center/.

Install and Set Up the Intel Inspector Sample Applications

  1. Copy the nqueens_fortran.tgz file from the <install-dir>/samples/<locale>/Fortran/ directory to a writable directory or share on your system. The default <install-dir> is below /opt/intel/.

  2. Extract the sample from the .tgz file to create the nqueens_fortran directory.

  3. Ensure you have set the EDITOR or VISUAL environment variable to your text editor.

Note

  • Samples are non-deterministic. Your screens may vary from the screen captures shown throughout this tutorial.

  • Samples are designed only to illustrate the Intel Inspector features; they do not represent best practices for creating code.

Understand Optimal Compiler/Linker Settings

You can use the Intel® Inspector to analyze memory and threading errors in both debug and release modes of C++ and Fortran binaries; however, applications compiled/linked in debug mode using the following settings produce the most accurate and complete analysis results.

Compiler/Linker Property

Correct C/C++ Setting

Impact If Not Set Correctly

Debug information

Enabled (-g)

Missing file/line information

Optimization

Disabled (-O0)

Incorrect file/line information

Dynamic runtime library

Selected (-shared-intel for Intel(R) compilers; default or -Bdynamic for GNU compilers)

False positives or missing code locations

Basic runtime error checks

Disabled (do not use -fmudflap)

False positives

Compiler/Linker Property

Correct Fortran Setting

Impact If Not Set Correctly

Debug information

Enabled (-debug or -g)

Missing file/line information

Optimization

Disabled (-O0)

Incorrect file/line information

Dynamic runtime library

Selected (-shared-intel)

False positives or missing code locations

Basic runtime error checks

None (-check:none)

False positives

Build the Application

  1. In a terminal session, change directory to the nqueens_fortran directory.

  2. Type make nqueens_threading_debug.

Verify the Application Runs Outside the Intel Inspector

  1. In the same terminal session, type ./nqueens_threading_debug to execute the sample application.

  2. Check for non-deterministic application output similar to the following:

    Usage: nqueens_threading[_debug] boardSize
    Using default size of 10
    Starting nqueens solver for size 10 with 8 thread(s)
    Number of solutions: 1404
    Incorrect result!
    Calculations took 113 ms.

Set up the Intel Inspector Environment

Do one of the following to set up the Intel Inspector environment:

  • Run one of the following source commands:

    • For csh/tcsh users: source <inspector-install-dir>/inspxe-vars.csh

    • For bash users: source <inspector-install-dir>/inspxe-vars.sh

    The default installation path, <inspector-install-dir>, is below:

    • /opt/intel/ for root users

    • $HOME/intel/ for non-root users

  • Add <inspector-install-dir>/bin32 or <inspector-install-dir>/bin64 to your path.

In some cases, you can also run the <studio-install-dir>/psxevars.csh or <studio-install-dir>/psxevars.sh command. The default installation path, <studio-install-dir>, is below:

  • /opt/intel/ for root users

  • $HOME/intel/ for non-root users

Open the Intel Inspector Standalone GUI

In the same terminal session, type inspxe-gui & to run the Intel Inspector standalone GUI in the background.

Create a New Project

  1. Choose File > New > Project... to display a dialog box similar to the following:

    Create a Project dialog box

  2. In the Project name field, type threading_issues. Then click the Create project button to create a config.inspxeproj file in the ~/intel/inspxe/projects/threading_issues/ directory (default location) and display a dialog box similar to the following:

    Target tab in the Project Properties dialog box

  3. Click the Browse button next to the Application field and select the nqueens_fortran/nqueens_threading_debug application. Notice the Intel Inspector autofills the project Working directory field for you. Then click the OK button to return to the Welcome page, where the name of the opened project displays in the title bar and in the Project Navigator pane. (If necessary, choose View > Project Navigator to display the Project Navigator.)

Optimization Notice: 
For more complete information about compiler optimizations, see our Optimization Notice.