[Swift-user] execution error

[Sheri Mickelson]

Hi Mike,

Here's a copy of the log file.  It happens consistently with the same  
settings.

Thanks, Sheri

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On Mar 16, 2012, at 2:21 PM, Michael Wilde wrote:

> Hi Sheri,
>
> Can you point us to the entire log file?
>
> Does it happen repeatedly? Same script, same point? Or sporadically?
>
> Thanks,
>
> - Mike
>
> ----- Original Message -----
>> From: "Sheri Mickelson" <mickelso at mcs.anl.gov>
>> To: swift-user at ci.uchicago.edu
>> Sent: Friday, March 16, 2012 1:05:12 PM
>> Subject: [Swift-user] execution error
>> Hi,
>>
>> I'm seeing this error message when I'm trying to execute a Swift
>> script:
>>
>> Execution failed:
>> First operand is null
>>
>> Here's the information from the log file:
>>
>> 2012-03-16 11:54:58,725-0600 DEBUG VDL2ExecutionContext First operand
>> is null
>> First operand is null
>>
>> at org.griphyn.vdl.karajan.lib.Operators.vdlop_eq(Operators.java:181)
>> at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
>> at
>> sun
>> .reflect
>> .DelegatingMethodAccessorImpl
>> .invoke(DelegatingMethodAccessorImpl.java:
>> 43)
>> at java.lang.reflect.Method.invoke(Method.java:616)
>> at
>> org
>> .globus
>> .cog
>> .karajan
>> .workflow
>> .nodes
>> .functions.FunctionsCollection.function(FunctionsCollection.java:
>> 82)
>> at
>> org
>> .globus
>> .cog
>> .karajan
>> .workflow
>> .nodes.functions.AbstractFunction.post(AbstractFunction.java:
>> 27)
>> at
>> org
>> .globus
>> .cog
>> .karajan
>> .workflow
>> .nodes
>> .AbstractSequentialWithArguments
>> .futureModified(AbstractSequentialWithArguments.java:208)
>> at org.griphyn.vdl.karajan.DSHandleFutureWrapper
>> $1.run(DSHandleFutureWrapper.java:63)
>> at java.util.concurrent.Executors 
>> $RunnableAdapter.call(Executors.java:
>> 471)
>> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
>> at java.util.concurrent.FutureTask.run(FutureTask.java:166)
>> at
>> java
>> .util 
>> .concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:
>> 1110)
>> at java.util.concurrent.ThreadPoolExecutor
>> $Worker.run(ThreadPoolExecutor.java:603)
>> at java.lang.Thread.run(Thread.java:636)
>>
>>
>> I'm having trouble finding the bug in my Swift code. What type of
>> error usually causes this message?
>>
>> Thanks, Sheri
>> _______________________________________________
>> Swift-user mailing list
>> Swift-user at ci.uchicago.edu
>> https://lists.ci.uchicago.edu/cgi-bin/mailman/listinfo/swift-user
>
> -- 
> Michael Wilde
> Computation Institute, University of Chicago
> Mathematics and Computer Science Division
> Argonne National Laboratory
>