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Edgar Gabriel 818b4af554 - reverting the logic in the hierarchy detection stuff. This can reduce the
number of collective operations and simplifies the logic significantly.
- introducing a special case if size of comm == 1, avoiding thus collective
 operations as well ( i.e. no need for hierarchies)
- fix for an unsymmetric case. Still to be tested.

This commit was SVN r7799.
2005-10-18 18:17:50 +00:00
..
2005-07-02 13:43:57 +00:00