ipo-jobs, Qipo-jobs

Specifies the number of commands (jobs) to be executed simultaneously during the link phase of Interprocedural Optimization (IPO).

IDE Equivalent

None

Architectures

IA-32 architecture, Intel® 64 architecture, IA-64 architecture

Syntax

Linux:	-ipo-jobsn
Mac OS:	None
Windows:	/Qipo-jobs:n

Arguments

n	Is the number of commands (jobs) to run simultaneously. The number must be greater than or equal to 1.

Default

-ipo-jobs1 or
/Qipo-jobs:1

One command (job) is executed in an Interprocedural Optimization (IPO) parallel build.

Description

This option specifies the number of commands (jobs) to be executed simultaneously during the link phase of Interprocedural Optimization (IPO). It should only be used if the link-time compilation is generating more than one object. In this case, each object is generated by a separate compilation, which can be done in parallel.

This option can be affected by the following compiler options:

-ipo (Linux) or /Qipo (Windows) when applications are large enough that the compiler decides to generate multiple object files
-ipon (Linux) or /Qipon (Windows) when n is greater than 1
-ipo-separate (Linux) or /Qipo-separate (Windows)

Caution

Be careful when using this option. On a multi-processor system with lots of memory, it can speed application build time. However, if n is greater than the number of processors, or if there is not enough memory to avoid thrashing, this option can increase application build time.

Alternate Options