Developer Guide and Reference

Contents

qopt-calloc

Tells the compiler to substitute a call to _intel_fast_calloc() for a call to calloc().

Syntax

Linux:
-qopt-calloc
-qno-opt-calloc
macOS:
None
Windows:
None
Arguments
None
Default
-qno-opt-calloc
The compiler does not substitute a call to _intel_fast_calloc() for a call to calloc().
Description
This option tells the compiler to substitute a call to_intel_fast_calloc() for a call to calloc().
This option may increase the performance of long-running programs that use calloc() frequently. It is recommended for these programs over combinations of options
-inline-calloc
and
-qopt-malloc-options=3
because this option causes less memory fragmentation.
Many routines in the LIBIRC library are more highly optimized for Intel® microprocessors than for non-Intel microprocessors.
Alternate Options
None