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From "Glenn Weidner (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SYSTEMML-1715) Parfor optimizer fails w/ complex indexing expressions in spark exec modes
Date Sat, 09 Sep 2017 01:47:00 GMT

     [ https://issues.apache.org/jira/browse/SYSTEMML-1715?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Glenn Weidner updated SYSTEMML-1715:
------------------------------------
    Fix Version/s:     (was: SystemML 1.0)
                   SystemML 0.15

> Parfor optimizer fails w/ complex indexing expressions in spark exec modes
> --------------------------------------------------------------------------
>
>                 Key: SYSTEMML-1715
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1715
>             Project: SystemML
>          Issue Type: Bug
>            Reporter: Matthias Boehm
>            Assignee: Matthias Boehm
>             Fix For: SystemML 0.15
>
>
> The function nn/layers/conv2d_depthwise.dml::forward throws the following exception in
spark execution modes. The reason why it does not show up in hadoop execution modes, is because
it originates from a codepath for block partitioning, which is only supported in Spark.
> {code}
> Caused by: java.lang.RuntimeException: java.lang.NullPointerException
>         at org.apache.sysml.parser.ParForStatementBlock.determineAccessPattern(ParForStatementBlock.java:616)
>         at org.apache.sysml.parser.ParForStatementBlock.rDeterminePartitioningCandidates(ParForStatementBlock.java:567)
>         at org.apache.sysml.parser.ParForStatementBlock.rDeterminePartitioningCandidates(ParForStatementBlock.java:554)
>         at org.apache.sysml.parser.ParForStatementBlock.determineDataPartitionFormat(ParForStatementBlock.java:417)
>         at org.apache.sysml.runtime.controlprogram.parfor.opt.OptimizerRuleBased.rewriteSetDataPartitioner(OptimizerRuleBased.java:434)
>         at org.apache.sysml.runtime.controlprogram.parfor.opt.OptimizerRuleBased.optimize(OptimizerRuleBased.java:244)
>         at org.apache.sysml.runtime.controlprogram.parfor.opt.OptimizationWrapper.optimize(OptimizationWrapper.java:243)
>         at org.apache.sysml.runtime.controlprogram.parfor.opt.OptimizationWrapper.optimize(OptimizationWrapper.java:117)
>         at org.apache.sysml.runtime.controlprogram.ParForProgramBlock.execute(ParForProgramBlock.java:579)
>         at org.apache.sysml.runtime.controlprogram.FunctionProgramBlock.execute(FunctionProgramBlock.java:115)
>         ... 18 more
> Caused by: java.lang.NullPointerException
>         at org.apache.sysml.parser.ParForStatementBlock.rParseBinaryExpression(ParForStatementBlock.java:1898)
>         at org.apache.sysml.parser.ParForStatementBlock.getLinearFunction(ParForStatementBlock.java:1728)
>         at org.apache.sysml.parser.ParForStatementBlock.determineAccessPattern(ParForStatementBlock.java:599)
>         ... 27 more
> {code}



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