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The Job Farming Module holds a persistent object named
system.hosts containing objects which represent virtual hosts
as described in Section 6.2.3. The printed representation of
virtual hosts is displayed in Example 7.4. Virtual hosts manage
all information which is related to a real computation host:
- The virtual host polls the load of its real world counterpart on
- It tracks whether the host is currently reachable or not.
- Virtual hosts keep track of tasks that are running on them,
and tasks that recently have terminated, in order to compute
their effective load.
- They report status information using events; whether they
consider themselves available for additional tasks (idle),
or not (busy).