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From Patricia Shanahan <p...@acm.org>
Subject Re: A new implementation of TaskManager
Date Tue, 06 Jul 2010 02:37:59 GMT
Peter Firmstone wrote:
> Tasks could belong to groups, so the tasks in that group are Comparable, 
> the Priority Manger could group the tasks with a ConcurrentHashMap, 
> reducing the number of tasks being compared, a group could just be a 
> string name, or an integer hash, defined by the task implementation.

I will investigate the TaskManager callers to see to what extent Task 
instances that would belong to separate groups are presented to the same 
TaskManager instance. If that happens a lot, the group idea has 
potential regardless of the rest of the design.

We may also have some gain from having some way for a Task to declare 
that it does not play the dependency game, being neither dependent on 
other tasks nor having other tasks depend on it. The dependency data 
structure can have separate synchronization from the dispatch data 


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