[SYSTEMDS-2485] Parfor optimizer failing due to non-existing parent vars

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: SystemML 1.2
• Assignee: Matthias Boehm
• Reporter: Matthias Boehm
• Created: 03/Aug/18 23:03
• Updated: 19/May/20 21:39
• Resolved: 19/May/20 21:39

Description

Encountered in old apply transform script.

Caused by: java.lang.NullPointerException
	at org.apache.sysml.runtime.controlprogram.parfor.opt.OptimizerRuleBased.rewriteSetDataPartitioner(OptimizerRuleBased.java:422)
	at org.apache.sysml.runtime.controlprogram.parfor.opt.OptimizerRuleBased.optimize(OptimizerRuleBased.java:231)
	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:116)
	at org.apache.sysml.runtime.controlprogram.ParForProgramBlock.execute(ParForProgramBlock.java:599)
	at org.apache.sysml.runtime.controlprogram.Program.execute(Program.java:116)