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Posted to issues@systemml.apache.org by "Matthias Boehm (JIRA)" <ji...@apache.org> on 2018/03/31 03:28:00 UTC

[jira] [Created] (SYSTEMML-2220) Performance ultra-sparse block operations

Matthias Boehm created SYSTEMML-2220:
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             Summary: Performance ultra-sparse block operations
                 Key: SYSTEMML-2220
                 URL: https://issues.apache.org/jira/browse/SYSTEMML-2220
             Project: SystemML
          Issue Type: Sub-task
            Reporter: Matthias Boehm


There are already special cases for ultra-sparse block multiplication for selection matrices. This task aims to generalize this to lhs ultra-sparse matrices having rows with a single non-zero (with optional scaling).



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