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Posted to issues@systemml.apache.org by "Matthias Boehm (JIRA)" <ji...@apache.org> on 2018/02/17 03:28:00 UTC
[jira] [Created] (SYSTEMML-2153) Parfor optimizer fails checking
for block-partitioned inputs
Matthias Boehm created SYSTEMML-2153:
----------------------------------------
Summary: 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
{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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