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Ticket #213 (new defect)
Optimized collective updates
| Reported by: | hauma | Owned by: | boh |
|---|---|---|---|
| Priority: | normal | Milestone: | 2.0 |
| Component: | uka.karo | Version: | 1.08a |
| Severity: | critical | Keywords: | |
| Cc: |
Description
A collective update on a replicated object that does not employ PartialReplication corresponds to an all-to-all operation in MPI, because each replica must communicate its changes to each other replica. But if a replicated object is partially replicated, changes to one replica are only relevant for a small subset of all replicas. This fact should be used to optimize collective updates for partially replicated objects.
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