This document explains how to use the IntelŪ Fortran Compiler to enhance application performance. How you use the information presented in this document depends on what you are trying to accomplish.
Where applicable, this document explains how compiler options and optimization methods apply on IA-32, ItaniumŪ, and IntelŪ Extended Memory 64 Technology (IntelŪ EM64T) architectures on Linux*, Windows*, and Mac OS* systems. In general, the compiler features and options supported for IA-32 Linux are supported on IntelŪ-based systems running Mac OS. For more detailed information about compiler support on a specific operating system see the IntelŪ Compiler Release Notes.
In addition to compiler options that can affect application performance, the compiler includes features that enhance your application performance such as directives, intrinsics, run-time library routines, and various utilities.
The following table lists some possible starting points for your optimization efforts.
If you are trying to... |
Then start with... |
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Improve performance for a specific type of application |
Applying Performance Enhancement Strategies |
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Optimize an application for speed or a specific architecture |
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Use programming strategies to improve performance
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Setting Data Type and Alignment |
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Create application profiles to help optimization |
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Enable optimization for calls and jumps |
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Optimize loops, arrays, and data layout |
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Generate reports on compiler optimizations |
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Use language intrinsics, directives, run-time libraries to enhance application performance |
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Create parallel programs or parallelize existing programs |