Better dual-core support

[autocad.wishlist1734]

Summary: Dual-core support.

Description: Better dual-core support

How Used: In all cad work, in regens.

Feature Affinity: Other

Submitted By: Jussi Aho on October 23, 2005

[Opie]

Does the current WHIPTHREAD AutoCAD system variable improve your regens?

From AutoCAD 2006 Help File

Type: Integer
Saved in: Registry
Initial value: 1

Controls whether to use an additional processor to improve the speed of operations such as ZOOM that redraw or regenerate the drawing. WHIPTHREAD has no effect on single processor machines.

0 No multithreaded processing; restricts regeneration and redraw processing to a single processor. This setting restores the behavior of AutoCAD 2000 and previous releases.

1 Regeneration multithreaded processing only; regeneration processing is distributed across two processors on a multiprocessor machine.

2 Redraw multithreaded processing only; redraw processing is distributed across two processors on a multiprocessor machine.

3 Regeneration and redraw multithreaded processing; regeneration and redraw processing is distributed across two processors on a multiprocessor machine.

When multithreaded processing is used for redraw operations (value 2 or 3), the order of objects specified with the DRAWORDER command is not guaranteed to be preserved for display but is preserved for plotting.