How to Use This Guide

The IntelŪ Fortran Compiler Options Quick Reference Guide contains the following information:

For complete information on each compiler option, refer to the IntelŪ Fortran Compiler User's Guide, Volumes I and II, and the ifort man page.

In this guide, compiler options are available on both IA-32 and IntelŪ ItaniumŪ processors unless otherwise identified.

Notation Conventions

ON in "Default" column

Indicates that the option is in effect by default when the compiler is invoked. If an option has a value for the ON state, it is indicated in parentheses.

OFF in "Default" column

Indicates that, by default, the option is not used when the compiler is invoked. If an option has a value for the OFF state, it is indicated in parentheses.

this type style

Italic, monospaced text indicates placeholders for information that you must supply.  Italics are also used to introduce new terms.
For example, the option -Qoption,str,opts could appear in the command line as follows: 
ifort -Qoption,link,-w myprog.f

{value | value}

Braces and a vertical bar indicate a choice among two or more items.  You must choose one of the items unless all of the items are also enclosed in square brackets.

-option parameter

Indicates that an option requires a parameter; for example, in -Ldir, the option -L instructs the linker to search directory dir for libraries.

-option keyword

Indicates that an option requires one of the keyword values.

-option [keyword]

Indicates that the option can be used alone or with an optional keyword.

-option[n]

Indicates that the option can be used alone or with an optional value; for example, in -unroll[n], n can be omitted or a valid value can be specified.

-option[-]

Indicates that a trailing hyphen disables the option; for example, -ansi_alias- disables the -ansi_alias option.

-[no]option

Indicates that "no" preceding an option disables the option. For example, in -[no]altparam, -altparam enables the option, while -noaltparam disables the option.

Note

The [no]options are listed in the alphabetical order of an option.