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Posted to issues@systemml.apache.org by "Matthias Boehm (JIRA)" <ji...@apache.org> on 2016/09/26 15:47:20 UTC

[jira] [Created] (SYSTEMML-959) Misc performance improvements 0.11 release

Matthias Boehm created SYSTEMML-959:
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             Summary: Misc performance improvements 0.11 release
                 Key: SYSTEMML-959
                 URL: https://issues.apache.org/jira/browse/SYSTEMML-959
             Project: SystemML
          Issue Type: Task
          Components: Compiler, Runtime
            Reporter: Matthias Boehm


This task tracks various minor performance features for the upcoming 0.11 release (identified ). In detail, this includes:

1) New IPA pass 'move checkpoint after update' (avoid unnecessary caching)
2) Avoid unnecessary 'parfor eager caching' count if RDD already cached
3) Performance grouped aggregate (full reduce if single block aggregation)
4) Avoid unnecessary eviction after appending vector of ones (merge append into binary read)



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