Data Placement Policies
Initialization with the “first touch” policy on a single processor
- all data on a single node
- bottle neck in access to that node
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Initialization with the “first touch” policy with multiple processors
- data is distributed naturally
- each processor has local data to run on
- minimal data exchange between nodes
- page edge effects
Initialization with the “round robin” policy with a single processor
- circular page placement on the nodes
- on average, all pages are remote
- no single bottle neck
- significant traffic between nodes