Matthias Boehm created SYSTEMML-2075:
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Summary: 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
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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