Machine / Job Features Specification


In 2015/2016, the MachineJobFeatures WLCG task force produced a revised specification which has been published as HEP Software Foundation technical note HSF-TN-2016-02.

The previous proposal from 2014 is still available in this Twiki.


  • The specification has been reformatted into LaTeX for publishing in PDF with HSF
  • All key names are now purely lowercase letters, digits and underscores.
  • GB/MB are replaced by bytes for memory and storage
  • Processor=CPU terminology consistent with the WLCG IS TF and APEL are used
  • grace_secs has been added to complement shutdowntime and allow jobs to decide whether to start an uninterruptible block of work.
  • job_id has been added for the batch job ID or the VM UUID.
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Topic revision: r4 - 2016-10-16 - AndrewMcNab
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