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@shuds13 shuds13 released this 04 May 00:04
v0.7.2
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Learn about vigilant mode.

:Date: May 03, 2021

API additions:

  • Active receive option added that allows irregular manager/worker communication patterns. (#527 / #595)
  • A mechanism is added for the cancellation/killing of previously issued evaluations. (#528 / #595 / #596)
  • A submit function is added in the base Executor class that runs a serial application locally. (#531 / #595)
  • Added libEnsemble history array protected fields: returned_time, last_given_time, and last_gen_time. (#590)
  • Updated libE_specs options (mpi_comm and profile). (#547 / #548)
  • Explicit seeding of random streams in add_unique_random_streams() is now possible. (#542 / #545)

Updates to example functions:

  • Added Surmise calibration generator function and two examples (regression tests). (#595)

Other changes:

  • Better support for uneven worker to node distribution (including at sub-node level). (#591 / #600)
  • Fixed crash when running on Windows. (#534)
  • Fixed crash when running with empty persis_info. (#571 / #578)
  • Error handling has been made more robust. (#592)
  • Improve H0 processing (esp. for pre-generated, but not evaluated points). (#536 / #537)
  • A global sim_id is now given, rather than a local count, in libE_stats.txt. Also a global gen count is given. (#587, #588)
  • Added support for Python 3.9. (#532) / Removed support for Python 3.5. (#562)
  • Improve SLURM nodelist detection (more robust). (#560)
  • Add check that user does not change protected history fields (Disable via libE_specs['safe_mode'] = False). (#541)
  • Added print_fields.py script for better interrogating the output history files. (#558)
  • In examples, is_master changed to is_manager to be consistent with manager/worker nomenclature. (#524)

Documentation:

  • Added tutorial Borehole Calibration with Selective Simulation Cancellation. (#581 / #595)

:Note:

  • Tested platforms include Linux, MacOS, Theta (Cray XC40/Cobalt), Summit (IBM Power9/LSF), Bebop (Cray CS400/Slurm).
  • Tested Python versions: (Cpython) 3.6, 3.7, 3.8, 3.9.

:Known issues:

  • OpenMPI does not work with direct MPI job launches in mpi4py comms mode, since it does not support nested MPI launches
    (Either use local mode or Balsam Executor).
  • See known issues section in the documentation for more issues.
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