Matthias Boehm created SYSTEMML-1715:
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Summary: 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
{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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