IPF-fp-relaxed, QIPF-fp-relaxed

Enables use of faster but slightly less accurate code sequences for math functions.

IDE Equivalent

None

Architectures

IntelŪ ItaniumŪ architecture

Syntax

Linux: -IPF-fp-relaxed
-no-IPF-fp-relaxed
Mac OS: None
Windows:  /QIPF-fp-relaxed
/QIPF-fp-relaxed-

Arguments

None

Default

-no-IPF-fp-relaxed or
/QIPF-fp-relaxed-		 Default code sequences are used for math functions.

Description

This option enables use of faster but slightly less accurate code sequences for math functions, such as divide and sqrt. When compared to strict IEEE* precision, this option slightly reduces the accuracy of floating-point calculations performed by these functions, usually limited to the least significant digit.

This option also enables the performance of more aggressive floating-point transformations, which may affect accuracy.

Alternate Options

Linux: -IPF_fp_relaxed
Mac OS: None
Windows: /QIPF_fp_relaxed