Contents
Start the Compiler from the Command Line
Find Composer XE Documentation
Disclaimer and Legal Information
Tutorials
The Intel® Fortran Composer XE 2013 for Linux* OS compiles Fortran source files on Linux* operating systems. The compiler and debugger are supported on IA-32 and Intel® 64 architectures.
The Intel® Fortran Composer XE 2013 for Linux* OS has tutorials with step by step instructions with sample code that you can compile into an application using the Intel compiler. Try out the compiler by using the source code from a tutorial.
If you need help getting started with this product, go to the Software Developer Support site where you can browse the knowledge base, ask user community experts and get additional help from Intel.
Before you can use the compiler, you must first set the environment variables by running the compiler environment script compilervars.sh or compilervars.csh
with an argument that specifies the target architecture.
The following procedure uses the compilervars.sh script:
Open a terminal session.
Run the compiler environment script compilervars.sh:
source <install-dir>/bin/compilervars.sh <arg>
where <install-dir> is the directory structure containing the compiler /bin
directory, and <arg> is one of the following architecture arguments:
ia32: Compilers and libraries for IA-32 architectures only
intel64: Compilers and libraries for Intel® 64 architectures only
Note The default path for <install-dir> is /opt/intel/.
Before you can use the compiler, you must first set the environment variables as described above in Set the Environment Variables.
To invoke the Intel® from the command line, use the command ifort my_source_file.F90.
Following successful compilation, the compiler creates an executable file in the current directory.
The Intel® Debugger is available in a graphical environment and as a command line tool. The graphical environment is a Java* application and requires the Java Runtime Environment (JRE).
Before you can use the graphical environment or command line debugger, you must first set the environment variables and then start the debugger.
To start the debugger:
Open a terminal session.
Set the environment variables as described above in Set the Environment Variables.
Enter one of the following commands:
idb to start the debugger in GUI mode
idbc to start the debugger in command line mode
The following tutorials includes sample code that demonstrates the features of the compiler.
A system with the Intel® Many Integrated Core Architecture (Intel® MIC Architecture) can run your application on both the CPU and the coprocessor. The application starts at the CPU with user-defined sections of the source code offloaded to the coprocessor. In this tutorial, you will compile the sample source code into an application that runs on both the CPU and the coprocessor. You will then examine the source code to see how you can define sections to run on both the host CPU and the coprocessor. Note You will need a system with the Intel® MIC Architecture to complete this tutorial. |
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The auto-vectorizer detects operations in the application that can be done in parallel and converts sequential operations to parallel operations by using the Single Instruction Multiple Data (SIMD) instruction set. In this tutorial, you will be introduced to adding parallelism to your serial application by using the auto-vectorizer on the sample code. You will then compare the performance of the serial version and the version that was compiled with the auto-vectorizer. |
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Guided auto parallelism offers selective advice that you can implement on your application. In this tutorial, you will improve the performance of the sample code by invoking the advice specified in the guided auto parallelism report. You will then see the performance difference between the serial version and the version that uses the advice provided by the guided auto parallelism feature. |
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Coarray Fortran support parallel programming using a Single Program Multiple Data (SPMD) model and supports both shared memory and distributed memory in a single method. In this tutorial, you will be introduced to compiling sample code that contains a coarray and control the number of processes in the application. |
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Intel® Math Kernel Library (Intel MKL) implements many types of operations for performing math computations. In this tutorial, you will use Intel MKL to multiply matrices, measure the performance of matrix multiplication, and control threading. |
You can find documentation on the following:
This document shows you how to compile your application, optimize your application by using optimization tools and other libraries, use compiler options, and understand heterogeneous programming support in the compiler. This document also has a Fortran language reference. The Intel® Fortran Compiler includes man page information. You can view
the man page information by first setting the environment variables, as
described in Set the Environment Variables, and then typing The compiler documentation also includes man pages detailing the code coverage tool ( Read a summary of compiler options from the command line by invoking the compiler with the |
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These documents contain the user guide for a library with optimized and scalable math functions and subroutines. You can use these functions and subroutines to create applications with maximum performance and seamlessly provide forward scaling from current to future many-core platforms. |
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| Intel® Debugger Documentation | This document contains the user guide for the Intel® debugger that you can use to debug your code. |
This document contains the most up-to-date information about the product:
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| Included Samples | This document contains a list of sample projects for use with the compiler. The samples illustrate compiler optimizations, features, tools, and programming concepts. |
| Additional Learning Resources | Internet site with additional resources to help you use this product. To search for additional learning resources on other Intel® software products, go to the Intel® Learning Lab. |
| Intel® Software Documentation Library | Internet site with documentation for other Intel software products. |
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