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From "Niketan Pansare (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SYSTEMML-880) Push-down loop structures in Python DSL
Date Tue, 19 Jun 2018 21:11:00 GMT

    [ https://issues.apache.org/jira/browse/SYSTEMML-880?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16517551#comment-16517551
] 

Niketan Pansare commented on SYSTEMML-880:
------------------------------------------

Since the below steps are not necessarily subtask, I am listing them:
 # Read the documentation and try the code: [http://apache.github.io/systemml/python-reference#matrix-class]
 # Understand the core problem of pushing down the loops: [http://apache.github.io/systemml/python-reference#dealing-with-the-loops]
 # Then, read the discussion in [PR 270|https://github.com/apache/systemml/pull/270] and
understand why a [simple solution|https://github.com/niketanpansare/systemml/blob/6e4c0a15a597034010ce80439aaee87960e836e1/src/main/python/systemml/pushdown.py#L43-L47]
is not preferred.
 # The solution that is preferred is to walk the [Python AST|https://docs.python.org/2/library/ast.html]
of the given function and replace loops with PyDML script.

> Push-down loop structures in Python DSL
> ---------------------------------------
>
>                 Key: SYSTEMML-880
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-880
>             Project: SystemML
>          Issue Type: Task
>            Reporter: Niketan Pansare
>            Priority: Major
>




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