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Posted to issues@systemml.apache.org by "Matthias Boehm (JIRA)" <ji...@apache.org> on 2017/08/20 02:07:00 UTC

[jira] [Created] (SYSTEMML-1855) Performance issues dense matrix lookups

Matthias Boehm created SYSTEMML-1855:
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             Summary: Performance issues dense matrix lookups
                 Key: SYSTEMML-1855
                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1855
             Project: SystemML
          Issue Type: Bug
            Reporter: Matthias Boehm


Compared to existing fused operators, the codegen fused operators with dense matrix lookups are about 20% slower due to unnecessary index computation and other overheads. This task aims to resolve this issue for cellwise and multi-aggregate templates.  



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