[SYSTEMDS-670] PyDML `random.normal` Function Broken Due to Namespace Issue

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: SystemML 0.10
• Fix Version/s: SystemML 0.10
• Component/s: Parser
• Epic Link: Improve PyDML Language
• Assignee: Glenn Weidner
• Reporter: Mike Dusenberry
• Created: 06/May/16 21:25
• Updated: 16/May/16 18:50
• Resolved: 16/May/16 18:47

Description

In PyDML, the random.normal(...) built-in function is currently broken due to a namespace issue.

Example:

N = 4
D = 3
X = random.normal(N, D, 1)
print(sum(X))

org.apache.sysml.parser.LanguageException: ERROR: null -- line 4, column 0 -- function normal is undefined in namespace random
	at org.apache.sysml.parser.StatementBlock.isMergeableFunctionCallBlock(StatementBlock.java:201)
	at org.apache.sysml.parser.StatementBlock.mergeFunctionCalls(StatementBlock.java:335)
	at org.apache.sysml.parser.DMLTranslator.liveVariableAnalysis(DMLTranslator.java:202)
	at org.apache.sysml.api.MLContext.executeUsingSimplifiedCompilationChain(MLContext.java:1354)
	at org.apache.sysml.api.MLContext.compileAndExecuteScript(MLContext.java:1257)
	at org.apache.sysml.api.MLContext.executeScript(MLContext.java:1195)
	at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:231)
	at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:381)
	at py4j.Gateway.invoke(Gateway.java:259)
	at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:133)
	at py4j.commands.CallCommand.execute(CallCommand.java:79)
	at py4j.GatewayConnection.run(GatewayConnection.java:209)
	at java.lang.Thread.run(Thread.java:745)

Issue Links

• relates to: SYSTEMDS-590 Improve Namespace Handling for UDFs
• relates to: SYSTEMDS-587 Improvements Triggered By Deep Learning Work