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CAD tip # 5847:

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An undocumented AutoCAD command sets CPU affinity.

The undocumented (and unsupported) AutoCAD command DUMPMEMALLOC offers among other the option Affinity which enables the so called "affinity" - an association of a Windows process (ACAD.EXE in this case) with a specific processor (or CPU core) on multi-processor and multi-core (dual-core, quad-core) computers. After enabling this option, AutoCAD will run on a single (the first) CPU/core only.

A similar function can be set in the Windows Task manager.

ACAD

* CAD

8.11.2007 8573x

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applies to: AutoCAD ·

See also:
Tip 8529:	How to use CUDA GPU to accelerate rendering in 3ds Max?
Tip 4905:	Using multiprocessing in AutoCAD.
Tip 2075:	How to enable multiple CPU support in 3D Studio VIZ or MAX or Inventor?
Tip 1215:	Does 3D Studio VIZ, MAX and LightScape make use of a second processor in my PC?
Tip 991:	Will Inventor run faster on a multiprocessor PC?

Selected tip: How to convert STB-style drawing to CTB-style (or vice versa)?

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