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From "Matthias Boehm (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (SYSTEMML-1901) Parfor with frame inputs or intermediates failing
Date Sat, 02 Dec 2017 23:22:00 GMT

     [ https://issues.apache.org/jira/browse/SYSTEMML-1901?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Matthias Boehm closed SYSTEMML-1901.
------------------------------------
       Resolution: Fixed
         Assignee: Matthias Boehm
    Fix Version/s: SystemML 1.0

> Parfor with frame inputs or intermediates failing
> -------------------------------------------------
>
>                 Key: SYSTEMML-1901
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1901
>             Project: SystemML
>          Issue Type: Bug
>            Reporter: Matthias Boehm
>            Assignee: Matthias Boehm
>             Fix For: SystemML 1.0
>
>
> There are multiple issues with using frame inputs and intermediates in a parfor context.
> First, the parfor optimizer fails on investigating partitioned inputs due to an unawareness
of frames:
> {code}
> Caused by: java.lang.ClassCastException: org.apache.sysml.runtime.controlprogram.caching.FrameObject
cannot be cast to org.apache.sysml.runtime.controlprogram.caching.MatrixObject
> 	at org.apache.sysml.runtime.controlprogram.parfor.opt.OptimizerRuleBased.getNewRIXMemoryEstimate(OptimizerRuleBased.java:519)
> 	at org.apache.sysml.runtime.controlprogram.parfor.opt.OptimizerRuleBased.rFindDataPartitioningCandidates(OptimizerRuleBased.java:472)
> 	at org.apache.sysml.runtime.controlprogram.parfor.opt.OptimizerRuleBased.rFindDataPartitioningCandidates(OptimizerRuleBased.java:462)
> 	at org.apache.sysml.runtime.controlprogram.parfor.opt.OptimizerRuleBased.rFindDataPartitioningCandidates(OptimizerRuleBased.java:462)
> 	at org.apache.sysml.runtime.controlprogram.parfor.opt.OptimizerRuleBased.rewriteSetDataPartitioner(OptimizerRuleBased.java:430)
> 	at org.apache.sysml.runtime.controlprogram.parfor.opt.OptimizerRuleBased.optimize(OptimizerRuleBased.java:233)
> 	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:593)
> 	at org.apache.sysml.runtime.controlprogram.Program.execute(Program.java:123)
> 	... 32 more
> {code}
> Second, the parfor runtime fails on creating unbounded frame outputs, again, due an unawareness
of frames.
> {code}
> Caused by: org.apache.sysml.runtime.DMLRuntimeException: Data type not supported: FRAME
> 	at org.apache.sysml.runtime.controlprogram.ParForProgramBlock.createEmptyUnscopedVariables(ParForProgramBlock.java:1289)
> 	at org.apache.sysml.runtime.controlprogram.ParForProgramBlock.consolidateAndCheckResults(ParForProgramBlock.java:1740)
> 	at org.apache.sysml.runtime.controlprogram.ParForProgramBlock.executeLocalParFor(ParForProgramBlock.java:814)
> 	at org.apache.sysml.runtime.controlprogram.ParForProgramBlock.execute(ParForProgramBlock.java:639)
> 	... 33 more
> {code}



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