Intel® Fortran Compiler Classic and Intel® Fortran Compiler Developer Guide and Reference

ID 767251
Date 9/08/2022
Public

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Document Table of Contents

qopt-prefetch-issue-excl-hint, Qopt-prefetch-issue-excl-hint

Supports the prefetchW instruction in Intel® microarchitecture code name Broadwell and later. This feature is only available for ifort.

Syntax

Linux:

-qopt-prefetch-issue-excl-hint

macOS:

None

Windows:

/Qopt-prefetch-issue-excl-hint

Arguments

None

Default

OFF

The compiler does not support the PREFETCHW instruction for this microarchitecture.

Description

This option supports the PREFETCHW instruction in Intel® microarchitecture code name Broadwell and later.

When you specify this option, you must also specify option [q or Q]opt-prefetch.

The prefetch instruction is merely a hint and does not affect program behavior. If executed, this instruction moves data closer to the processor and invalidates any other cached copy in anticipation of the line being written to in the future.

IDE Equivalent
None
Alternate Options

None

See Also