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Allow sparse array representation in ArrayBasedDirectedGraph #199

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pankajgupta opened this issue Sep 7, 2015 · 1 comment
Open

Allow sparse array representation in ArrayBasedDirectedGraph #199

pankajgupta opened this issue Sep 7, 2015 · 1 comment

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@pankajgupta
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Currently all nodes are stored in an array of size maxNodeId+1. This is wasteful in memory when the node ids are sparsely distributed. Make a sparse representation of the collection of nodes (e.g., using fastutils int2int map or a trie, or some other home grown version) that maps node id to a node efficiently and compactly.
@pankajgupta
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Working on this.

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@pankajgupta