fimf-force-dynamic-target,
Qimf-force-dynamic-target
Instructs the compiler to use run-time
dispatch in calls to math functions.
This content is specific to C++; it does not apply to
DPC++
.Syntax
Linux:
-fimf-force-dynamic-target
[
=
funclist
]
Windows:
/Qimf-force-dynamic-target
[
:
funclist
]
Arguments
- funclist
- Is an optional list of one or more math library functions to which the attribute should be applied. If you specify more than one function, they must be separated with commas.Precision-specific variants like sin and sinf are considered different functions, so you would need to use-fimf-dynamic-target=sin,sinf(or/Qimf-dynamic-target:sin,sinf) to specify run-time dispatch for both the single-precision and double-precision sine functions.You also can specify the symbol /f to denote single-precision divides, symbol / to denote double-precision divides, symbol /l to denote extended-precision divides, and symbol /q to denote quad-precision divides. For example, you can specify-fimf-dynamic-target=/or/Qimf-dynamic-target:/.
Default
- OFF
- Run-time dispatch is not forced in math libraries calls. The compiler can choose to call a CPU-specific version of a math function if one is available.
Description
This option instructs the compiler to use run-time dispatch in calls to math
functions. When this option set to ON, it lets you force run-time dispatch in
math libraries calls.
If you want to target multiple CPU families with a single application or you
prefer to choose a target CPU at run time, you can force run-time dispatch in
math libraries by using this option.
Product and Performance Information
|
|---|
Performance varies by use, configuration and other factors. Learn more at
www.Intel.com/PerformanceIndex.
Notice revision #20201201
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IDE Equivalent
None
Alternate Options
None