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From "Matthias Boehm (JIRA)" <>
Subject [jira] [Created] (SYSTEMML-2174) Ultra-sparse cpmm empty block pruning
Date Thu, 08 Mar 2018 02:16:00 GMT
Matthias Boehm created SYSTEMML-2174:

             Summary: Ultra-sparse cpmm empty block pruning
                 Key: SYSTEMML-2174
             Project: SystemML
          Issue Type: Sub-task
            Reporter: Matthias Boehm

For spark cpmm instructions with a single output block, we should prune empty blocks before
the join and before aggregation.

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