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to-1.1.h
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/**
* @page changes_between_1.0_and_1.1 Changes between version 1.0 and version 1.1
*
* <p> This is the list of changes made after the release of ASPECT version
* 1.0 for version 1.1. All entries are signed with the names of the author.
* </p>
*
* <ol>
*
* <li> Changed: the Stokes linear solver tolerance now includes the current
* pressure instead of being only based on the rhs. This makes the tolerance
* less problem dependent. Please note that in many cases you can loosen the
* tolerance to something between 1e-4 to 1e-7.
* <br>
* (Timo Heister, 2014/05/30)
*
* <li> New: ASPECT now logs all screen output to output/log.txt.
* <br>
* (Timo Heister, 2014/05/29)
*
* <li> Changed: The adiabatic reference profile is now defined in a plugin
* architecture as well. Currently, only the old funtionality of having a
* constant profile, which is computed before the first timestep, is included.
* However, now there is the possibility for more simple or more realistic
* user-written plugins (like an analytic function, or a profile that is
* updated over time).
* <br>
* (Rene Gassmoeller, 2014/05/29)
*
* <li> Changed: The initial conditions do not longer use pointers to other
* parts of the program (like the geometry model), instead they now should be
* derived from the SimulatorAccess class as all other plugins.
* <br>
* (Rene Gassmoeller, 2014/05/29)
*
* <li> Changed: For some modules, e.g. the selection of which postprocessor
* to run, "all" was an option. This may have made sense when we had 3 or 4
* such postprocessors, but this is no longer the case. Furthermore, not all
* postprocessors can always be run for a given geometry, input parameters,
* etc. Consequently, the option of specifying "all" has been removed. Where
* this applied, we have also removed the default value "all".
*
* <li> Changed: If the input file is invalid, for example because a
* parameter's value did not satisfy its constraints or because it tried to
* define a parameter that did not exist, all processors in a parallel
* computation produced the same error message -- leading to massive amounts
* of output that were barely readable. This has been changed now: only
* processor zero now generates the output, but all processors abort
* nonetheless.
* <br>
* (Wolfgang Bangerth, 2014/05/29)
*
* <li> Changed: Previously, we aborted the program if the specified output
* directory did not exist. This is inconvenient for jobs that may have been
* sitting in a queue for a long time and for which forgetting to create the
* output directory may have just been an oversight. We now simply generate
* this directory if it is missing.
* <br>
* (Wolfgang Bangerth, 2014/05/28)
*
* <li> New: Given the proliferation of plugins of all kinds, plugin names are
* now listed in alphabetical order in the documentation.
* <br>
* (Wolfgang Bangerth, 2014/05/27)
*
* <li> New: PETSc support can now be enabled using 'cmake -D
* ASPECT_USE_PETSC=ON'.
* <br>
* (Timo Heister, 2014/05/27)
*
* <li> Fixed: The GPlates plugin now correctly handles meshes created by
* GPlates 1.4 and later. Previous ASPECT versions may only read in files
* created by GPlates 1.3.
* <br>
* (Rene Gassmoeller, 2014/05/23)
*
* <li> Add a find_postprocessor() function in Simulator_access class to pass
* a pointer of a certain postprocessor, if it is not found, return a NULL
* pointer.
* <br>
* (Siqi Zhang, 2014/05/23)
*
*
* <li> Mesh refinement plugins can now interact with initial global mesh
* refinement and unflag certain cells if desired.
* <br>
* (Timo Heister, 2014/05/22)
*
* <li> Changed: The functionality that outputs some basic statistics values
* like the Rayleigh number in case of a simple material model was moved from
* the velocity statistics postprocessor to a new postprocessor called basic
* statistics.
* <br>
* (Rene Gassmoeller, 2014/05/21)
*
* <li> Fixed: We accidentally evaluated the viscosity of the material model
* from the place where we compute the adiabatic conditions, but this required
* information that we didn't have. This is also unnecessary since we don't
* need the viscosity in this place. This is now fixed.
* <br>
* (Wolfgang Bangerth, 2014/05/21)
*
* <li> Fixed: Temperature and compositional boundary conditions were
* previously evaluated only once at the beginning of the simulation, but this
* did not allow for time dependent boundary conditions for these variables.
* This is now fixed.
* <br>
* (Wolfgang Bangerth, 2014/05/21)
*
* <li> Fixed: We forgot to set the initial time before we evaluate the
* temperature boundary conditions, so temperature boundary conditions could
* not use <code>get_time()</code> -- they just got NaN. This is now fixed.
* <br>
* (Wolfgang Bangerth, 2014/05/21)
*
* <li> New: There is now functionality for running models with a free surface
* with an Arbitrary Lagrangian-Eulerian framework. The user specifies which
* boundary indicators are to be free surface boundaries, as well as a
* stabilization parameter that keeps the free surface from exhibiting a
* sloshing instability. There is an associated postprocessor that calculates
* mininum/maximum topography, as well as a new section and cookbook in the
* manual. Finally, there are two tests for the free surface formulation.
* <br>
* (Ian Rose, 2014/05/21)
*
* <li>New: There is now a new postprocessor "velocity boundary statistics"
* that computes statistics about the minimal and maximal velocities on each
* part of the boundary.
* <br>
* (Anne Glerum, 2014/05/21)
*
* <li>New: Compositional fields have names now. If no names are specified in
* the input file, the previously used names C_1, C_2, ... are used as a
* default.
* <br>
* (Juliane Dannberg, 2014/05/21)
*
* <li> New: There is now a simple compressible material model with constant
* compressibility resulting in an exponential dependeny of density on
* pressure and a linear dependence on temperature deviation from the
* adiabatic profile. All other material properties are constant.
* <br>
* (Rene Gassmoeller, 2014/05/20)
*
* <li>New: There is now a new initial temperature condition plugin that can
* read in solidus temperatures from a file and add perturbations to it. There
* is also a corresponding data file for initial conditions for Mars from
* Permentier et al. in <code>data/initial-temperature/solidus.Mars</code>.
* <br>
* (Siqi Zhang, 2014/05/20)
*
* <li>New: There is now a new postprocessor "spherical velocity statistics"
* that computes statistics about the radial and tangential velocity field.
* <br>
* (Anne Glerum, 2014/05/20)
*
* <li>New: There is now a mesh refinement criterium that checks the mesh
* always has a minimum refinement level determined by a function given in the
* input file.
* <br>
* (Juliane Dannberg, 2014/05/20)
*
* <li> New: Input files can now contain lines ending in backslashes to
* concatenate subsequent lines.
* <br>
* (Menno Fraters, 2014/05/19)
*
* <li> New: There is a new material model called multicomponent for having an
* arbitrary number of compositional fields with different material
* properties, where each compositional field represents a rock type. Within
* each rock type the material properties are assumed to be constant. When
* more than one rock type is present, the material model averages their
* properties with a weighted arithmetic average. An exception is viscosity,
* where the user may specify a harmonic, geometric, or arithmetic averaging,
* or selecting the viscosity of the maximum composition.
* <br>
* (Ian Rose, 2014/05/19)
*
* <li>New: The dynamic topography postprocessors now take into account (i)
* the dynamic pressure, (ii) effects due to compressibility, (iii) they now
* have the option to subtract the mean topography to ensure that the
* topography is, on average, zero.
* <br>
* (Jacqueline Austermann, 2014/05/19)
*
* <li>Fixed: The GPlates cookbook in ASPECT-1.0 contained a bug that
* prevented it from using the GPlates plugin. This is fixed now.
* <br>
* (Rene Gassmoeller, 2014/05/18)
*
* <li>New: There is a new plugin architecture for heating models that allows
* for plugins defining the radiogenic heating rate in dependency of
* temperature, pressure, composition, position and time. This introduces an
* incompatibility of input files to older versions, but the old functionality
* is preserved and extended.
* <br>
* (Rene Gassmoeller, 2014/05/16)
*
* <li>New: There is now a material model with reactions between compositional
* fields and a cookbook describing the usage of this material model.
* <br>
* (Juliane Dannberg, Rene Gassmoeller, 2014/05/16)
*
* <li>Fixed: Times associated with visualization output are now correctly
* modified when "Use years in output instead of seconds" is true.
* <br>
* (Eric Heien, 2014/05/09)
*
* </ol>
*
*
*/