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From "Matthias Boehm (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (SYSTEMML-2153) Parfor optimizer fails checking for block-partitioned inputs
Date Sat, 17 Feb 2018 04:08:00 GMT

     [ https://issues.apache.org/jira/browse/SYSTEMML-2153?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Matthias Boehm closed SYSTEMML-2153.
------------------------------------
       Resolution: Fixed
         Assignee: Matthias Boehm
    Fix Version/s: SystemML 1.1

> Parfor optimizer fails checking for block-partitioned inputs
> ------------------------------------------------------------
>
>                 Key: SYSTEMML-2153
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-2153
>             Project: SystemML
>          Issue Type: Bug
>            Reporter: Matthias Boehm
>            Assignee: Matthias Boehm
>            Priority: Major
>             Fix For: SystemML 1.1
>
>
> {code}
> Caused by: java.lang.RuntimeException: java.lang.NullPointerException
>         at org.apache.sysml.parser.ParForStatementBlock.determineAccessPattern(ParForStatementBlock.java:588)
>         at org.apache.sysml.parser.ParForStatementBlock.rDeterminePartitioningCandidates(ParForStatementBlock.java:539)
>         at org.apache.sysml.parser.ParForStatementBlock.rDeterminePartitioningCandidates(ParForStatementBlock.java:526)
>         at org.apache.sysml.parser.ParForStatementBlock.determineDataPartitionFormat(ParForStatementBlock.java:398)
>         at org.apache.sysml.runtime.controlprogram.parfor.opt.OptimizerRuleBased.rewriteSetDataPartitioner(OptimizerRuleBased.java:423)
>         at org.apache.sysml.runtime.controlprogram.parfor.opt.OptimizerRuleBased.optimize(OptimizerRuleBased.java:236)
>         at org.apache.sysml.runtime.controlprogram.parfor.opt.OptimizationWrapper.optimize(OptimizationWrapper.java:246)
>         at org.apache.sysml.runtime.controlprogram.parfor.opt.OptimizationWrapper.optimize(OptimizationWrapper.java:118)
>         at org.apache.sysml.runtime.controlprogram.ParForProgramBlock.execute(ParForProgramBlock.java:601)
>         at org.apache.sysml.runtime.controlprogram.Program.execute(Program.java:118)
>         ... 13 more
> Caused by: java.lang.NullPointerException
>         at org.apache.sysml.parser.ParForStatementBlock$LinearFunction.equalSlope(ParForStatementBlock.java:1959)
>         at org.apache.sysml.parser.ParForStatementBlock.isAlignedBlocking(ParForStatementBlock.java:595)
>         at org.apache.sysml.parser.ParForStatementBlock.determineAccessPattern(ParForStatementBlock.java:580)
> {code}



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