User Guide

10.1
- 10.5 HotFix 2
- 10.5 HotFix 1
- 10.5
- 10.2 HotFix 1
- 10.2
- 10.0 HotFix 1
- 10.0

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Utilizing multiple CPUs

If you run the Data Clustering Engine on a multi-processor computer, the number of processors is automatically detected and used as the default value for the number of key-scoring threads created. If you need to alter this behaviour, you can to do one of the following:

The multi-threaded clustering feature is only available with Key-Scoring.

Set the environment variable SSA_DCETHREADS=#, where

is the number of threads. This environment variable should be set before the DCE Server is started or optionally you can set this variable using the Console’s

Settings

Environment Settings

dialog.

Add the

THREADS(#)

keyword in the clustering job options in the Project definition file. The

indicates the number of threads that you want to make available to the key-scoring process. e.g.


job-definition
NAME=job-cluster
TYPE=cluster
OPTIONS=Threads(4)

The environment variable SSA_DCETHREADS setting overrides the

THREADS(#)

keyword. If neither is specified, DCE automatically detects the number of CPUs available.

It is recommended that the number of key-scoring threads does not exceed the number of CPUs on your system.

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User Guide

Utilizing multiple CPUs

Utilizing multiple CPUs