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From "Matthias Boehm (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SYSTEMML-1755) Failed instruction generation during dynamic recompilation
Date Sun, 09 Jul 2017 07:30:00 GMT

     [ https://issues.apache.org/jira/browse/SYSTEMML-1755?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Matthias Boehm updated SYSTEMML-1755:
-------------------------------------
    Description: 
{code}
Caused by: org.apache.sysml.runtime.DMLRuntimeException: Unable to recompile program block.
        at org.apache.sysml.runtime.controlprogram.ProgramBlock.execute(ProgramBlock.java:159)
        at org.apache.sysml.runtime.controlprogram.FunctionProgramBlock.execute(FunctionProgramBlock.java:115)
        ... 13 more
Caused by: java.lang.NullPointerException
        at org.apache.sysml.lops.BinaryScalar.getOpcode(BinaryScalar.java:119)
        at org.apache.sysml.lops.BinaryScalar.getInstructions(BinaryScalar.java:84)
        at org.apache.sysml.lops.compile.Dag.generateControlProgramJobs(Dag.java:1405)
        at org.apache.sysml.lops.compile.Dag.doGreedyGrouping(Dag.java:1175)
        at org.apache.sysml.lops.compile.Dag.getJobs(Dag.java:269)
        at org.apache.sysml.hops.recompile.Recompiler.recompileHopsDag(Recompiler.java:240)
        at org.apache.sysml.runtime.controlprogram.ProgramBlock.execute(ProgramBlock.java:147)
        ... 14 more
{code}

The root cause was a simplification rewrite for binary matrix-scalar operations which did
not account for unsupported scalar operations such as {{OpOp2.QUANTILE, OpOp2.CENTRALMOMENT,
OpOp2.MINUS1_MULT, OpOp2.MINUS_NZ, OpOp2.LOG_NZ}}.

  was:
{code}
Caused by: org.apache.sysml.runtime.DMLRuntimeException: Unable to recompile program block.
        at org.apache.sysml.runtime.controlprogram.ProgramBlock.execute(ProgramBlock.java:159)
        at org.apache.sysml.runtime.controlprogram.FunctionProgramBlock.execute(FunctionProgramBlock.java:115)
        ... 13 more
Caused by: java.lang.NullPointerException
        at org.apache.sysml.lops.BinaryScalar.getOpcode(BinaryScalar.java:119)
        at org.apache.sysml.lops.BinaryScalar.getInstructions(BinaryScalar.java:84)
        at org.apache.sysml.lops.compile.Dag.generateControlProgramJobs(Dag.java:1405)
        at org.apache.sysml.lops.compile.Dag.doGreedyGrouping(Dag.java:1175)
        at org.apache.sysml.lops.compile.Dag.getJobs(Dag.java:269)
        at org.apache.sysml.hops.recompile.Recompiler.recompileHopsDag(Recompiler.java:240)
        at org.apache.sysml.runtime.controlprogram.ProgramBlock.execute(ProgramBlock.java:147)
        ... 14 more

{code}


> Failed instruction generation during dynamic recompilation
> ----------------------------------------------------------
>
>                 Key: SYSTEMML-1755
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1755
>             Project: SystemML
>          Issue Type: Bug
>            Reporter: Matthias Boehm
>
> {code}
> Caused by: org.apache.sysml.runtime.DMLRuntimeException: Unable to recompile program
block.
>         at org.apache.sysml.runtime.controlprogram.ProgramBlock.execute(ProgramBlock.java:159)
>         at org.apache.sysml.runtime.controlprogram.FunctionProgramBlock.execute(FunctionProgramBlock.java:115)
>         ... 13 more
> Caused by: java.lang.NullPointerException
>         at org.apache.sysml.lops.BinaryScalar.getOpcode(BinaryScalar.java:119)
>         at org.apache.sysml.lops.BinaryScalar.getInstructions(BinaryScalar.java:84)
>         at org.apache.sysml.lops.compile.Dag.generateControlProgramJobs(Dag.java:1405)
>         at org.apache.sysml.lops.compile.Dag.doGreedyGrouping(Dag.java:1175)
>         at org.apache.sysml.lops.compile.Dag.getJobs(Dag.java:269)
>         at org.apache.sysml.hops.recompile.Recompiler.recompileHopsDag(Recompiler.java:240)
>         at org.apache.sysml.runtime.controlprogram.ProgramBlock.execute(ProgramBlock.java:147)
>         ... 14 more
> {code}
> The root cause was a simplification rewrite for binary matrix-scalar operations which
did not account for unsupported scalar operations such as {{OpOp2.QUANTILE, OpOp2.CENTRALMOMENT,
OpOp2.MINUS1_MULT, OpOp2.MINUS_NZ, OpOp2.LOG_NZ}}.



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