BGCOREPUBLISH (System Variable)

Controls whether background publishing uses a single or multiple cores.

Type:	Integer
Saved in:	Registry
Initial value:	1

By default, background publishing utilizes multiple cores of your processor to improve the performance of outputting to a:

• Single sheet DWF/DWFx or PDF file
• Multi-sheet PDF file

This allows for multiple drawing sheets to be output in parallel and simultaneously.

Note: The BACKGROUNDPLOT system variable must be set to a value of 2 or 3 to utilize more than a single core.

Value	Description
0	Off - Single core is used for background publishing; behavior of AutoCAD 2021-based products and earlier
1	On - Multiple cores are used for background publishing

This setting doesn't improve the performance of:

• Background publishing to a hardcopy device or multi-sheet DWF/DWFx file
• Foreground publishing
• Background or foreground plotting