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104 lines
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ReStructuredText
104 lines
4 KiB
ReStructuredText
.. _releasenotes:
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===============================
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Release Notes for OpenMC 0.10.0
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===============================
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.. currentmodule:: openmc
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This release of OpenMC includes several new features, performance improvements,
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and bug fixes compared to version 0.9.0. Notably, a C API has been added that
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enables in-memory coupling of neutronics to other physics fields, e.g., burnup
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calculations and thermal-hydraulics. The C API is also backed by Python bindings
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in a new :mod:`openmc.capi` package. Users should be forewarned that the C API
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is still in an experimental state and the interface is likely to undergo changes
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in future versions.
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The Python API continues to improve over time; several backwards incompatible
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changes were made in the API which users of previous versions should take note
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of:
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- To indicate that nuclides in a material should be treated such that elastic
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scattering is isotropic in the laboratory system, there is a new
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:attr:`Material.isotropic` property::
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mat = openmc.Material()
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mat.add_nuclide('H1', 1.0)
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mat.isotropic = ['H1']
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To treat all nuclides in a material this way, the
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:meth:`Material.make_isotropic_in_lab` method can still be used.
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- The initializers for :class:`openmc.Intersection` and :class:`openmc.Union`
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now expect an iterable.
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- Auto-generated unique IDs for classes now start from 1 rather than 10000.
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.. attention:: This is the last release of OpenMC that will support Python
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2.7. Future releases of OpenMC will require Python 3.4 or later.
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-------------------
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System Requirements
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-------------------
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There are no special requirements for running the OpenMC code. As of this
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release, OpenMC has been tested on a variety of Linux distributions and Mac
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OS X. Numerous users have reported working builds on Microsoft Windows, but your
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mileage may vary. Memory requirements will vary depending on the size of the
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problem at hand (mostly on the number of nuclides and tallies in the problem).
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------------
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New Features
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------------
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- Rotationally-periodic boundary conditions
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- C API (with Python bindings) for in-memory coupling
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- Improved correlation for Uranium enrichment
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- Support for partial S(a,b) tables
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- Improved handling of autogenerated IDs
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- Many performance/memory improvements
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---------
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Bug Fixes
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---------
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- 937469_: Fix energy group sampling for multi-group simulations
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- a149ef_: Ensure mutable objects are not hashable
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- 2c9b21_: Preserve backwards compatibility for generated HDF5 libraries
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- 8047f6_: Handle units of division for tally arithmetic correctly
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- 0beb4c_: Compatibility with newer versions of Pandas
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- f124be_: Fix generating 0K data with openmc.data.njoy module
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- 0c6915_: Bugfix for generating thermal scattering data
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- 61ecb4_: Fix bugs in Python multipole objects
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.. _937469: https://github.com/mit-crpg/openmc/commit/937469
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.. _a149ef: https://github.com/mit-crpg/openmc/commit/a149ef
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.. _2c9b21: https://github.com/mit-crpg/openmc/commit/2c9b21
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.. _8047f6: https://github.com/mit-crpg/openmc/commit/8047f6
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.. _0beb4c: https://github.com/mit-crpg/openmc/commit/0beb4c
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.. _f124be: https://github.com/mit-crpg/openmc/commit/f124be
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.. _0c6915: https://github.com/mit-crpg/openmc/commit/0c6915
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.. _61ecb4: https://github.com/mit-crpg/openmc/commit/61ecb4
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------------
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Contributors
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------------
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This release contains new contributions from the following people:
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- `Brody Bassett <brbass@umich.edu>`_
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- `Will Boyd <wbinventor@gmail.com>`_
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- `Guillaume Giudicelli <g_giud@mit.edu>`_
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- `Brittany Grayson <graybri3@isu.edu>`_
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- `Sterling Harper <sterlingmharper@gmail.com>`_
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- `Colin Josey <cjosey@mit.edu>`_
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- `Travis Labossiere-Hickman <tjlaboss@mit.edu>`_
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- `Jingang Liang <liangjg2008@gmail.com>`_
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- `Alex Lindsay <alexlindsay239@gmail.com>`_
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- `Johnny Liu <johnny16.21@gmail.com>`_
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- `Amanda Lund <alund@anl.gov>`_
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- `April Novak <novak@berkeley.edu>`_
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- `Adam Nelson <nelsonag@umich.edu>`_
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- `Jose Salcedo Perez <salcedop@mit.edu>`_
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- `Paul Romano <paul.k.romano@gmail.com>`_
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- `Sam Shaner <samuelshaner@gmail.com>`_
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