[Swift-user] Externally controlled loop

Mihael Hategan hategan at mcs.anl.gov
Fri Aug 31 14:35:12 CDT 2012 

That looks like a bug in swift.

What version are you running this with (I see trunk, but how did you get
it)?

Mihael

On Fri, 2012-08-31 at 14:24 -0500, Carolyn Phillips wrote:
> Just to be certain I ran your exact script
> 
> cat b4.swift 
> type file;
> 
> iterate passes {
>    file passlog <"passes.log">;
>    passlog = writeData(passes);
> 
>    int value = readData("errorlog");
>    int readpasses = readData(passlog);
> 
>    tracef("%s: %i\n", "the value is", value);
>    tracef("%s: %i\n", "Iteration :", passes);
>    tracef("%s: %i\n", "Iteration Read :", readpasses);
> 
> } until (readpasses == 2);  # Determine if Done
> 
> 
> [phillicl at midway-login1 TestSwift]$ swift b4.swift
> no sites file specified, setting to default: /software/swift-trunk-all/etc/sites.xml
> Swift trunk swift-r5901 cog-r3451
> 
> RunID: 20120831-1923-58gjhdrd
> Progress:  time: Fri, 31 Aug 2012 19:23:29 +0000
> Iteration :: 0
> the value is: 0
> Iteration Read :: 0
> Execution failed:
> 	java.lang.NullPointerException
> 	at org.griphyn.vdl.mapping.AbstractDataNode.getType(AbstractDataNode.java:95)
> 	at org.griphyn.vdl.karajan.lib.SwiftArg.unwrap(SwiftArg.java:57)
> 	at org.griphyn.vdl.karajan.lib.SwiftArg.getValue(SwiftArg.java:77)
> 	at org.griphyn.vdl.karajan.lib.Operators.vdlop_eq(Operators.java:216)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:601)
> 	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.completed(AbstractSequentialWithArguments.java:194)
> 	at org.globus.cog.karajan.workflow.nodes.FlowNode.complete(FlowNode.java:214)
> 	at org.globus.cog.karajan.workflow.nodes.FlowContainer.post(FlowContainer.java:58)
> 	at org.globus.cog.karajan.workflow.nodes.functions.AbstractFunction.post(AbstractFunction.java:28)
> 	at org.globus.cog.karajan.workflow.nodes.Sequential.startNext(Sequential.java:29)
> 	at org.globus.cog.karajan.workflow.nodes.Sequential.executeChildren(Sequential.java:20)
> 	at org.globus.cog.karajan.workflow.nodes.FlowContainer.execute(FlowContainer.java:63)
> 	at org.globus.cog.karajan.workflow.nodes.FlowNode.restart(FlowNode.java:139)
> 	at org.globus.cog.karajan.workflow.nodes.FlowNode.start(FlowNode.java:197)
> 	at org.globus.cog.karajan.workflow.FlowElementWrapper.start(FlowElementWrapper.java:227)
> 	at org.globus.cog.karajan.workflow.events.EventBus.start(EventBus.java:98)
> 	at org.globus.cog.karajan.workflow.events.EventTargetPair.run(EventTargetPair.java:40)
> 	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:722)
> 
> 
> On Aug 31, 2012, at 2:20 PM, Carolyn Phillips <cphillips at mcs.anl.gov> wrote:
> 
> > Execution failed:
> > 	java.lang.NullPointerException
> > 	at org.griphyn.vdl.mapping.AbstractDataNode.getType(AbstractDataNode.java:95)
> > 	at org.griphyn.vdl.karajan.lib.SwiftArg.unwrap(SwiftArg.java:57)
> > 	at org.griphyn.vdl.karajan.lib.SwiftArg.getValue(SwiftArg.java:77)
> > 	at org.griphyn.vdl.karajan.lib.Operators.vdlop_eq(Operators.java:216)
> > 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> > 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> > 	at java.lang.reflect.Method.invoke(Method.java:601)
> > 	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.completed(AbstractSequentialWithArguments.java:194)
> > 	at org.globus.cog.karajan.workflow.nodes.FlowNode.complete(FlowNode.java:214)
> > 	at org.globus.cog.karajan.workflow.nodes.FlowContainer.post(FlowContainer.java:58)
> > 	at org.globus.cog.karajan.workflow.nodes.functions.AbstractFunction.post(AbstractFunction.java:28)
> > 	at org.globus.cog.karajan.workflow.nodes.Sequential.startNext(Sequential.java:29)
> > 	at org.globus.cog.karajan.workflow.nodes.Sequential.executeChildren(Sequential.java:20)
> > 	at org.globus.cog.karajan.workflow.nodes.FlowContainer.execute(FlowContainer.java:63)
> > 	at org.globus.cog.karajan.workflow.nodes.FlowNode.restart(FlowNode.java:139)
> > 	at org.globus.cog.karajan.workflow.nodes.FlowNode.start(FlowNode.java:197)
> > 	at org.globus.cog.karajan.workflow.FlowElementWrapper.start(FlowElementWrapper.java:227)
> > 	at org.globus.cog.karajan.workflow.events.EventBus.start(EventBus.java:98)
> > 	at org.globus.cog.karajan.workflow.events.EventTargetPair.run(EventTargetPair.java:40)
> > 	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:722)
> > 
> > On Aug 31, 2012, at 2:17 PM, Mihael Hategan <hategan at mcs.anl.gov> wrote:
> > 
> >> Should work. What's the exact error you are getting?
> >> 
> >> $ swift b4.swift
> >> no sites file specified, setting to
> >> default: /home/mike/work/cog-svn/cogkit/trunk/current/src/cog/modules/swift/dist/swift-svn/etc/sites.xml
> >> Swift trunk swift-r5739 (swift modified locally) cog-r3088 (cog modified
> >> locally)
> >> 
> >> RunID: 20120831-1215-i0n6v30e
> >> Progress:  time: Fri, 31 Aug 2012 12:15:09 -0700
> >> Iteration :: 0
> >> Iteration Read :: 0
> >> the value is: 1
> >> Iteration :: 1
> >> the value is: 1
> >> Iteration Read :: 1
> >> Iteration :: 2
> >> the value is: 1
> >> Iteration Read :: 2
> >> Final status: Fri, 31 Aug 2012 12:15:09 -0700
> >> 
> >> $ cat b4.swift
> >> type file;
> >> 
> >> iterate passes {
> >>   file passlog <"passes.log">;
> >>   passlog = writeData(passes);
> >> 
> >>   int value = readData("errorlog");
> >>   int readpasses = readData(passlog);
> >> 
> >>   tracef("%s: %i\n", "the value is", value);
> >>   tracef("%s: %i\n", "Iteration :", passes);
> >>   tracef("%s: %i\n", "Iteration Read :", readpasses);
> >> 
> >> } until (readpasses == 2);  # Determine if Done
> >> 
> >> $
> >> 
> >> 
> >> On Fri, 2012-08-31 at 12:02 -0500, Carolyn Phillips wrote:
> >>> Hello,
> >>> 
> >>> So I want to create an externally controlled loop, meaning, the number of times the loop repeats is determined by the output of a executable called within the loop.  That output is written to a file so it can be read and checked.   I am experimenting with getting a very rudimentary set up.   Below you can see that I have two lines that determine if the iteration is done, one based on the variable "passes" and the other based on the variable "read passes" that is read from a file.  The second does not work and throws a execution failed exception.     Any advice on how to make this kind of structure work?
> >>> 
> >>> type file;
> >>> 
> >>> iterate passes {
> >>> 
> >>> 
> >>>   # try writing the iteration to a log file
> >>>   file passlog <"passes.log">;
> >>>   passlog = writeData(passes);
> >>> 
> >>>   # try reading from another log file
> >>>   int value = readData("errorlog");
> >>>   int readpasses = readData(passlog);
> >>> 
> >>>   # Write to the Output Log 
> >>>   int i = 3;
> >>>   tracef("%s: %i\n", "the value is", value); 
> >>>   tracef("%s: %i\n", "Iteration :", passes);
> >>>   tracef("%s: %i\n", "Iteration Read :", readpasses);
> >>> 
> >>> #} until (readpasses == 2);  # Determine if Done
> >>> } until (passes == 2);  # Determine if Done
> >>> _______________________________________________
> >>> Swift-user mailing list
> >>> Swift-user at ci.uchicago.edu
> >>> https://lists.ci.uchicago.edu/cgi-bin/mailman/listinfo/swift-user
> >> 
> >> 
> > 
>

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