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Python Text Processing with NLTK 2.0 Cookbook by Jacob Perkins

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Distributed tagging with execnet

Execnet is a distributed execution library for python. It allows you to create gateways and channels for remote code execution. A gateway is a connection from the calling process to a remote environment. The remote environment can be a local subprocess or an SSH connection to a remote node. A channel is created from a gateway and handles communication between the channel creator and the remote code.

Since many NLTK processes require 100 percent CPU utilization during computation, execnet is an ideal way to distribute that computation for maximum resource usage. You can create one gateway per CPU core, and it doesn't matter whether the cores are in your local computer or spread across remote machines. In many situations, ...

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