Cyclus 0.2 Release Notes¶
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Cyclus Developers
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The Cyclus core team is excited to announce the second stable version after over a year of development! This includes nearly 1300 commits by 6 developers. Major features include,
A module separation effort. This required major changes to the building and testing system. See Cycamore [1].
Added tests and basic convenience features to various classes, mostly with respect to the critical material class.
Substantive performance improvements (~50x for some simulations).
Input code revamp.
Output recording code rewrite.
Changes from 0.1 to 0.2¶
New features¶
Added data type specification capability to rng system.
Made various ResourceBuffer, Material Class, and agent memory management improvements and tests.
Made the relaxng schema system modular.
Made significant build system and installation changes to allow separating the modules into Cycamore and creating CycStub.
Moved modules into their own repository (Cycamore).
Improved or added material convenience functions for developers such as subtraction, un-normalization, and more.
Added significant testing in Material, CompMap, and related classes.
Added additional exception throwing for exceptional absorption and extraction cases (extracted too much, absorbed negative).
Made fixes to the build system to better address the needs of Mac OSX users.
Added libxml++ as a dependency.
Added features to the command line interface to allow output file specification.
Updated code base in accordance with Google Style Guide (0’s to NULL when NULL is intended, prepended iterators, moved curly braces, etc.)
Expanded extraction by mass to allow various input units.
Added functions and tests for almost equality and thresholding in the material class.
Created the CycArithmetic class which holds tools for more sophisticated floating point arithmetic.
Fixed absorption method bug (#493, https://github.com/cyclus/cyclus/issues/493).
Substantive performance improvements (~50x for some simulations).
Easier to create/record custom data to output. Modular, drop-in support for different output formats.
Top-level simulation flow broken into clear module loading, simulation initialization/construction, simulation running, and module unloading steps.
Added ability to invoke daily actions (technically this reduces the timestep to a single day for modules that need to take advantage of the smaller granularity).
IsoVector’s compmap encapsulated in a separate class.
IsoVector and material interfaces updated accordingly.
Added an enrichment toolkit to assist with SWU/NatlU calculations.
Added SWU/Natural uranium calculation methods.
Added a facility-building and management interface kit, allowing for intelligent facility build decision making.
Added a commodity supply/demand toolkit, providing an interface for supply/demand inquiry and supplier/demander registration with a manager.
Added a commodity production toolkit, providing an interface to query agents ability to produce commodities.
Added a toolkit for agenting general symbolic functions and factory methods to produce them.
Added derived classes to agent linear, exponential, and piecewise functions.
Added a robust dynamic loading interface for dynamic libraries for easy opening, access, and closing.
Separated unix and windows-specific helper functions for dynamic loading.
Added a generic interface for input querying.
Added a specific interface for loading, parsing, and querying xml files, including rng schema verification.
Added interleaves to cyclus.rng’s institution and region sections.
Added capacity members to cyclus.rng.
Deprecations¶
Deprecated converter facilities.
Known bugs¶
Known Bug (#514): decayed compositions are not recorded in output database.
Contributors¶
The following people contributed to this release of Cyclus. A “*” by their name indicates a first time contributor. Names follow alphabetically,
Robert Carlsen
Matthew Gidden
Katy Huff
Anthony Scopatz*
Zach Welch*
Paul Wilson
References¶
[1] Cycamore: https://github.com/cyclus/cycamore
