Changes between Version 2 and Version 3 of ReleaseNotes/1.20.0


Ignore:
Timestamp:
2022-11-15T00:36:49Z (2 years ago)
Author:
Francesco Casella
Comment:

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  • ReleaseNotes/1.20.0

    v2 v3  
    1212OMEdit loads MSL 4.0.0 by default in the Libraries Browswer. However, if one then loads a package using MSL 3.2.3, it is possible to unload MSL 4.0.0 and load MSL 3.2.3 just with a click of a button.
    1313
    14 The second most notable feature is that a new general purpose ODE solver, named {{{gbode}}}, was introduced. This solver is a fully configurable single-step solver, supporting many different integration methods, both explicit and implicit, with either fixed time step or variable time step with error control, event detection, and dense output for accurate resampling over a regular time grid. Implemented methods include Euler, Heun, Dormand-Prince, Gauss, Radau, Lobatto, Adams-Moulton, Fehlberg, DIRK, SDIRK, ESDIRK, etc. Adaptive multi-rate algorithms are also available within this solver, although this feature is still experimental. This solver replaces previously available solvers like {{{euler}}}, {{{impeuler}}}, {{{trapezoid}}}, etc., which are now deprecated and will be removed in future versions of the tool.
     14The second most notable feature is that a new general purpose ODE solver, named {{{gbode}}}, was introduced. This solver is a fully configurable single-step solver, supporting many different integration methods, both explicit and implicit, using either fixed time step or variable time step with error control, handling event detection and dense output for accurate resampling over a regular time grid. Implemented methods include Euler, Heun, Dormand-Prince, Gauss, Radau, Lobatto, Adams-Moulton, Fehlberg, SDIRK, ESDIRK, etc. Adaptive multi-rate algorithms are also available within this solver, although this feature is still experimental. This solver replaces previously available solvers like {{{euler}}}, {{{impeuler}}}, {{{trapezoid}}}, etc., which are now deprecated and will be removed in future versions of the tool.
    1515
    1616The {{{gbode}}} solver is currently only available via simulation flags, which can be set in OMEdit under Simulation Setup | Simulation Flags | Additional Simulation Flags (optional). It will be supported via drop-down menus in future releases. See the User's Guide under [https://openmodelica.org/doc/OpenModelicaUsersGuide/1.20/solving.html#gbode Solving Modelica Models] for further information.