[Swift-user] concurrent_mapper filenames

[Ben Clifford]

> Were you expecting something like:
>   blowup/blowup-array/elt-10.dat
> ?
> 
> We could try to adjust the output behavior of this mapper.

The concurrent mappper was not intended for file names that you would 
expect to use outside of swift -there is already a mapper for numbering 
files based on eg array indices. Its going to generate "weird looking" 
filenames based on tuning I did to make it behave well on GPFS, rather 
than on filenames that you should expect to be able to predict.

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