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https://issues.apache.org/jira/browse/SYSTEMML-2075?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias Boehm closed SYSTEMML-2075.
------------------------------------
Resolution: Fixed
Assignee: Matthias Boehm
Fix Version/s: SystemML 1.1
> Invalid constant folding of matrix-scalar logical operations
> ------------------------------------------------------------
>
> Key: SYSTEMML-2075
> URL: https://issues.apache.org/jira/browse/SYSTEMML-2075
> Project: SystemML
> Issue Type: Bug
> Reporter: Matthias Boehm
> Assignee: Matthias Boehm
> Priority: Major
> Fix For: SystemML 1.1
>
>
> Matrix-scalar logical operations such as \{{C = A & FALSE}} are incorrectly
> rewritten to \{{FALSE}} during constant folding, which changes the output
> data type causing subsequent operations to fail. For example, \{{write(C,
> "tmp")}} crashes as follows:
>
> {code}
> PROGRAM ( size CP/SP = 0/1 )
> --MAIN PROGRAM
> ----GENERIC (lines 22-27) [recompile=true]
> ------SPARK write false.SCALAR.BOOLEAN.true
> target/testTemp/functions/binary/scalar/LogicalTest/out/C.SCALAR.STRING.true
> textcell.SCALAR.STRING.true .SCALAR.STRING.true
> Caused by: org.apache.sysml.runtime.DMLRuntimeException: Failed to obtain RDD
> for data type other than matrix or frame.
> at
> org.apache.sysml.runtime.controlprogram.context.SparkExecutionContext.getRDDHandleForVariable(SparkExecutionContext.java:325)
> at
> org.apache.sysml.runtime.instructions.spark.WriteSPInstruction.processFrameWriteInstruction(WriteSPInstruction.java:237)
> at
> org.apache.sysml.runtime.instructions.spark.WriteSPInstruction.processInstruction(WriteSPInstruction.java:145)
> at
> org.apache.sysml.runtime.controlprogram.ProgramBlock.executeSingleInstruction(ProgramBlock.java:264)
> {code}
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