Thanks Randall, 

Based on your suggestions I tried a few things - here are the results.
hzslice is the name of my script.

Starting with a command line "dx -processors 2 -memory 1024 -script"
Then "dx>include hzslice"
Everything works fine.

Starting with a command line "dx -processors 1 -memory 1024 -script hzslice"
Everything works fine.

Starting with a command line "dx -processors 2 -memory 1024 -script hzslice"
It stops before executing the sequencer (found that by using the Describe
module as suggested).

I get exactly the same behaviour using the sample script "Sequencer" now
that I have tried it.

Go figure? Runs much quicker with two processor, so if anyone know a fix I'd
appreciate it. If not, is this the sought of thing I should stick in a bug
report?

Also, I have never had a problem with my Bus!

Cheers,

Cameron


>    I don't know for sure what's wrong (haven't run your script yet), but
> in looking at what you're doing, one possibility jumps to mind:
> 
>    On multiprocessor SGIs (Onyx, Octane), I've never had -processors > 1
> work with -script.  Try -processors 1.  I'd be interested if that
> does/doesn't work around your problem.
> 
>    Also, try putting Describe modules in your dataflow so you can see
> where it's quitting on you.
> 
> Randy
> 
> P.S. Are you saying this works for you if you run it interactively, running
> it by typing "include ..."?  Unless I use -processors 1, when I "quit", I
> see a Bus error.

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