bugGNU Parallel - build and execute command lines from standard input in parallel - Bugs: bug #37779, Make result file names insensitive...

 
 

bug #37779: Make result file names insensitive to order of input sources when using --header

Submitted by:  Drew Frank <drewfrank>
Submitted on:  Tue 20 Nov 2012 07:19:01 AM UTC  
 
Category: NoneSeverity: 3 - Normal
Item Group: NoneStatus: Fixed
Privacy: PublicAssigned to: None
Open/Closed: Closed

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Mon 26 Nov 2012 08:41:13 PM UTC, comment #2:

Fixed in [d47e130]

Ole Tange <tange>
Project Administrator
Tue 20 Nov 2012 07:58:44 AM UTC, comment #1:

Thinking about this more, it's not quite as clean as I initially thought since not all arguments may even occur in the command itself, e.g.
./parallel --results foo_ --header : echo {a} ::: a 1 ::: b 2. In such a case I would still want "b?2" to appear in the result file name. Also, some arguments might occur multiple times in the command.

Drew Frank <drewfrank>
Project Member
Tue 20 Nov 2012 07:19:01 AM UTC, original submission:

When called with both --header and --results, parallel stores job outputs in result files named according to the their corresponding input values. For example:

./parallel --results foo_ --header : echo {a} {b} ::: a 1 ::: b 2

generates the result file:

foo_stdout?a?1?b?2

where I have represented tabs with '?' for visual clarity. Now suppose the input sources were given in reverse order:

./parallel --results foo_ --header : echo {a} {b} ::: b 2 ::: a 1

Currently, parallel will write the results to

foo_stdout?b?2?a?1

Since the same command is run in both cases, it seems more natural for the file name to be based on the order that the arguments occur in the pre-substitution command. With that behavior, both of these examples would use the "a?1?b?2" ordering.

Drew Frank <drewfrank>
Project Member

 

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    Follow 4 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Mon 26 Nov 2012 08:41:13 PM UTCtangeStatusNone=>Fixed
      Open/ClosedOpen=>Closed
    Tue 20 Nov 2012 07:19:57 AM UTCdrewfrankSummaryMake result file names insensitive to order of input source when using --header=>Make result file names insensitive to order of input sources when using --header
    Tue 20 Nov 2012 07:19:46 AM UTCdrewfrankSummarySurprising behavior in result file name generation=>Make result file names insensitive to order of input source when using --header

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