(v13) Multi-threading

This page applies to Harlequin v13.1r0 and later; and to Harlequin Core but not Harlequin MultiRIP.

Multi-threading allows the RIP to take advantage of hyperthreading and multi-core CPU architectures as well as multiple processors and is designed to improve performance.

These options can be set as a PostScript language file in Sys\HqnOEM, in a TestConfig file, or in any other PostScript language configuration run as the RIP boots. The RIP tries to keep the number of threads set by the HPP controls busy, but may temporarily restrict or over-subscribe the number of threads for short periods.

The Harlequin Core supports the interpretation of one page of a job while the previous page of the same job is being composited and/or rendered in one or more separate threads (Harlequin Parallel Pages) sometimes called “pipelining” or “concurrent pages”. Harlequin Parallel Pages works in combination with multi-threaded compositing and multi-threaded rendering (MTR).

Harlequin Parallel Pages is applied to jobs submitted in all PDLs supported by the RIP.

The use of Harlequin Parallel Pages and multi-threading is protected with an LDK key.