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Mechanics and heat conduction.

05 Oct 22:00
@endJunction endJunction
6.0.7
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Mechanics and heat conduction.

Features

The main features of this release is the implementation of two new processes,
the small deformation, and the heat conduction. Some extensions were done to
the DOF table to be able to manage multi-component/multi-variable processes.
Also, during implementation of the Robin boundary conditions, the base classes
for the boundary conditions were generalized.

  • Add small deformation process with linear elastic material model. The
    implementation is based on the Kelvin mapping. #1340
  • Added B-Matrices and Kelvin mapping tools for deformation processes. #1359
  • Heat conduction process implementation. #1328
  • Finalize support for multicomponent boundary conditions adding configuration
    parser. #1343
  • Added uniform Robin boundary condition. #1336
  • Added a generic natural boundary condition class. #1337
  • Added Robin boundary condition. #1336
  • Reworked the Parameter class. It now serves as a basis for BCs and ICs. #1357, #1356
  • Added time-dependent Dirichlet BCs. #1380
  • Add calculation of surface flux, tests for groundwater flow. #1429
  • Implemented numerical Jacobian assembly for Newton-Raphson solver. #1352
  • Added the new parameter type "Group" which can be used for setting material
    ID dependent values. #1426
  • Added fluid property class and several fluid density and viscosity models
    based on it. #1398, #1435
  • Enabled solving of axially symmetric problems on 2D meshes for all currently
    implemented processes. #1443
  • Added time measurement for assembly and solvers. #1322
  • Added named functions, out of which expressions can be built up at run-time
    from the prj file, which can be used to output additional nodal quantities. #1314, #1315
  • Added component-wise norms, and flexible convergence criteria for nonlinear
    solvers. #1349, #1342
  • Restructured the time loop. #1364

Utilities

New utilities:

  • createNeumannBc: The tool integrates the given element property and writes
    the computed data as a PropertyVector with the name node_aggregated_gwn
    into the mesh. The tool also outputs an OGS-5 direct source term (Neumann
    boundary condition) data file. #1346
  • scaleProperty for simple rescaling of mesh properties. #1347
  • convertGEO for geometric file conversion, e.g. gli to glm. #1360
  • swapNodeCoordinateAxes to swap node coordinate values, e.g. XY to XZ plane. #1361
    New feature:
  • Support tetrahedra types in generateStructuredMesh. #1353

Infrastructure

  • Migrated all important Jenkins jobs to script-based
    Jenkins Pipeline
    functionality. For an introduction see
    docs.opengeosys.org - Continuous Integration. #1392, #1396, #1404, #1411, #1424, #1428, #1436
  • Moved CMake logic for packaging executable dependencies (such as shared libs)
    to the install and package targets instead of running after each executable
    gets build. #1458
  • Increase minimum clang compiler version to 3.5 in course of updating travis
    build enviroment to Ubuntu LTS 14.04. #1448
  • Added a script that generates crosslinked Doxygen pages out of ctest input
    files #1348

Fixes:

  • Fix an issue that a shape vector was defined as a column vector. Corrected to
    a row vector . #1288
  • Fix usage of boost::optional<T const&>, which has changed in version 1.61. #1385
  • Fix Grid (enlarge bounding box to fit all points). #1369
  • Fix mapping of geometries to mesh surfaces. #1327. #1368
  • Fix transmitting raster data to element properties. #1347
  • Fixed missing XSD files in packages. #1410
  • Fix a shape vector to a row vector. #1288
  • Fix FEFLOW import. #1397
  • Fix NodeReordering to check ordering of each element. #1425
  • Fix builds linking shared VTK library. #1431
  • Fix global Newton iteration counter. #1341
  • Correct few loops over mesh nodes, which should run over the mesh subsets. #1437
  • Fix shape function computation for 2D elements lying in the x-y-plane #1318
  • Fix AddTest, s.t. ctest now really checks results. #1325
  • Made Eigen preconditioner configurable. #1367
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6.0.6

05 Jul 11:05
@endJunction endJunction
6.0.6
df587a2
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6.0.6

Features:

  • Transferred the TES process, a monolithically coupled THC model for simulating
    thermochemical energy storag devices, from OGS5. #1181
  • Add external ode-solver interface with Sundials CVODE
    library    . #1109
  • Introduced a general scheme for documenting OGS6 input file settings. #978
  • Add piecewise linear curves parser to the project files. The curves are
    specified by two vectors, the coordinates and values. They can be used for
    example to map temporal dependencies (time-dependent boundary conditions) or
    as approximations of coefficient dependencies (e.g. pressure-saturation
    curves). #1149
  • Extend the LocalAssemblerInterface by adding default implementations of
    pre/postTimestep and assembleJacobian functions. The current time and time
    step size are passed in the preTimestep call to the particular processes. #1214
  • Add support multi-variable/multi-component in the DOF table interface and
    extend the initial conditions to multi-components. #1224
  • Major rework of the general process interface. That also affects the
    interface of concrete processes and local assemblers.
    least squares optimization. #1145
  • Added functionality for the output of secondary variables. #1171
  • Added material properties for zeolite adsorption and Calcium oxide/hydroxide
    reactions. #1178
  • Added copy constructor for the class Surface, minor improvements in GeoLib. #1237
  • Added classes GeoLib::LineSegment and GeoLib::Polyline::SegmentIterator. #1139
  • GMSHInterface can handle stations as constraints. #1212
  • Added functionality to duplicate geometric data. #1229
  • Station names can be modified in Data Explorer #1273

Infrastructure

  • Fix circular dependencies on library level. This allows for dynamic linking
    which is faster than static and can be used in debug builds, where the
    compilation time is more important than the runtime.
    • Enable shared linking of ogs libraries. #1133
    • Break FileIO on ApplicationsLib dependency. #1138
    • Remove MeshLib on FileIO dependency. #1143, #1153
    • Cleanup some of AssemblerLib dependencies. #1166
    • Split AssemblerLib and move to MathLib and NumLib #1208
    • Move InsituLib to MeshLib #1208
    • Remove MathLib depends on NumLib #1208
    • Remove dependency of FileIO on Data Explorer #1302
  • Introduced Conan package manager for automatic fetching of build dependencies, #1141
  • Inconsistent formatting of tabs and spaces was finally resolved: now all
    formatting, indentation and alignment, are done with four spaces. #1201
  • Windows 32-bit builds are disallowed because they are not supported.
    Can be forced by setting OGS_32_BIT=ON. #1230
  • Simplified FindEigen.cmake, #1209
  • git diff --check is run in its own Travis job, #1207
  • Moved some IO implementations from FileIO to BaseLib/IO, GeoLib/IO, MeshLib/IO, #1182, #1235
  • Eigen is not optional anymore #1218
  • Removed OGS_USE_EIGENLIS CMake option. Use OGS_USE_LIS instead #1251

Fixes:

  • Fix linking of Metis in MathLib. #1147
  • Fix memory leaks in GMSHInterface. #1212
  • Fix build with Lis #1267
  • Fixing several small issues with NetCDF import #1169
  • Restructure Applications related modules
    • Move DataHolderLib and FileIO under Applications #1279
  • Remove calling std::abort within libraries. Exeptions are thrown instead. #1245
  • Fix finding Boost with BOOST_ROOT CMake argument #1287
  • Fix linking of Sundials CVODE library #1197
  • Fixed issue where geometry names would be missing after merging geometries #1295
Assets 2
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6.0.5

13 Apr 23:10
@endJunction endJunction
6.0.5
c13ceb5
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6.0.5

Release notes

Implementation of several time integration methods and non-linear solver schemes is the major advance in this release. We have chosen to implement a first order implicit quasi-linear system solver for the equations in the form of $M\dot{x} + Kx + b = 0$, where M, K, and b depend on t and x.

The explicit and the implicit Euler, the Crank-Nicholson, and the BDF (second to sixth order) time integration methods are provided. For the non-linear systems, the Picard and Newton methods are available. See implementation details in the doxygen documentation.

Overall stability of the code was improved with recent usage of clang's address and undefined behaviour sanitizers.

Features:

  • Added an ODE solver library that can solve transient and nonlinear problems
    (see http://doxygen.opengeosys.org/df/d35/group__ODESolver.html).
  • Move up common Process parts from particular GroundwaterFlow process
    implementation. #951, #982
  • Separate Dirichlet boundary condition class implementation. #963
  • Split process output and post timestep. #998
  • Added pre- and postTimestep and -Iteration hooks to processes. #1094, #1100, #1101
  • Added a new configuration tree parser
    • Checks configuration parameters more strictly, automatically prints error/warning messages.
    • Requires Boost >= 1.56 because of boost::optional with move semantics.
    • Command line argument --config-warnings-nonfatal that keeps OGS from terminating on warnings during
      configuration file parsing (errors still makes it terminate).
  • Improved axis aligned bounding box:
    • Is now a from the right half-open interval.
    • Removed template from class declaration.
  • Improved MeshLib: Class MeshElementGrid implements a grid data structure supporting search operations.
  • Added cmake option OGS_EIGEN_DYNAMIC_SHAPE_MATRICES that makes OGS use dynamically.
    allocated shape matrices.
  • Added several cmake options for selecting which element types, dimensions and
    orders to be built. Selecting only few element types speeds up compilation
    significantly. #1092
  • Added a command line argument of -l for OGS cli and testrunner to specify verbosity of logging. #1056
  • Added possibility to specify after which timesteps there shiuld be output.
  • Added possibility to specify timesteps of different size for use with
    transient processes.

DataExplorer and utilities

  • Added command line tool for creating layered meshes from raster files
  • Made OGSFileConverter as a separate library
  • Add a new functionality to the raster file to structured grid conversion, which can now convert pixel values in user-defined scalar arrays
  • Improved DataExplorer, which now enables the possibility to display all scalar arrays in mesh information window.
  • Added generation of structured meshes to DataExplorer
  • Restructured mesh creation access in DataExplorer
  • Added a new functionality to add mesh layers to existing meshes in DataExplorer
  • Reworked tools:
    • CreateBoundaryConditionsAlongPolyline
    • AddTopLayer
    • ResetPropertyInPolygonalRegion
    • removeMeshElements

Infrastructure

Documentation

Fixes

  • Fix bugs in GeoLib:
    • lineSegmentIntersects.
    • Polygon::splitPolygonAtIntersection.
    • Grid.
  • GeoMapper: Refactoring few methods, c++11. #977
  • Rework FileIO::GMSH interface
    • Process geometries located other than in the x-y-plane.
    • Respect the scaling factor for Stations.
    • Fix memory leaks.
    • Added/modified tests for GML-, GMS- and TetGen-files.
Assets 9
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6.0.4

05 Jan 11:18
@bilke bilke
6.0.4
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6.0.4

Release notes

| Released on 2015/01/05, GitHub Release Link

Features:

  • Parallel computing framework for FEM by using PETSc, which also includes
    • Parallel input of partitioned mesh data.
    • Parallel output of solutions by using pvtu data format.
  • New data structures for mesh properties are used everywhere replacing
    Element's value member.
  • The penalty method to impose first-type boundary conditions was substituted
    with a non-penalty method for LIS and Eigen linear solvers.
  • Support for multiple nodal variables is extended to the boundary conditions,
    the sparsity pattern.
  • Passing of linear solver options from the project files is now possible.
  • The global matrix and global vector type of indices is consistent with the
    linear solver library being used.

Infrastructure

  • Added CMake option OGS_CPU_ARCHITECTURE, #858, downloadable binaries build by Jenkins should now run on more CPUs
  • Added CMake options for Boost, VTK and Eigen (OGS_LIB_BOOST, ...) to specify if libs are searched on the system first, then build them locally (Default), or you can specify to just use system libs (System) or force a local build (Local)
  • Added CMake options for enabling Clang sanitizer:
    • OGS_ADDRESS_SANITIZER
    • OGS_UNDEFINED_BEHAVIOR_SANITIZER
  • The zlib library is removed from ThirdParty directory.
  • A LIS solver interface using Eigen's sparse matrices is now available through
    CMake option OGS_USE_EIGENLIS.
  • CMake configuration uses ccache if available.

Documentation

Fixes

  • Fix all ogs-internal warnings on all OS.
  • Move eigen solver compute call to solve(); different fix for 0237275
Assets 9
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6.0.3

22 Sep 10:28
@bilke bilke
6.0.3
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6.0.3

| Released on 2015/09/21, GitHub Release Link

Release notes

Features:

  • Mesh properties are now used for:
    • heterogeneous "initial conditions" (actually a start solution vector for the elliptic problem).
    • spatially heterogeneous hydraulic conductivity values in the groundwater flow process.
  • First steps towards time dependent problems: Time loop integration for processes is provided.
  • Interpolation of nodal quantities on elements using shape functions.
  • Mesh generator can create surface meshes according to a given function

? - DataExplorer extensions:

  • Utilities:
    • MoveGeometry
  • The DOF table handles now all of the provided element types: Hex 8 and 20, Line 2 and 3, Prism 6 and 15, Pyramid 5 and 13, Quad 4, 8, and 9, Tet 4 and 10, Triangle 3 and 6.
  • Eigen linear solver library can be used for solution of the linear systems of equations.
  • Octree data structures for fast searches
    • Volumetric and surface grid
    • ElementSearcher NodeSearcher improvements
  • Generalized the computation of rotation matrix to xy

Fixes

  • FEFLOW interface supports element sets now.
  • Reduce compilation times by using forward declarations and removing unnecessary includes and using explicit template instantiation for often required classes.
  • GMSH2OGS: fixed bug in cases GMSH mesh does not contain line elements
  • CreateBoundaryConditionsAlongPolylines: fixed bug concerning the GeoLib and point ids.
  • PointVec corrected point id map
  • Shape interface creates polylines in a consistent state

Infrastructure

Test examples

  • Test case: groundwater flow in the Unstrut catchment (model consists approximately of 9e6 hexahedral cells)
    • Simulations using homogeneous and heterogeneous hydraulic conductivity
    • Integrated rivers as Dirichlet type boundary conditions
    • Integrated groundwater recharge (spatialy homogeneous) as Neumann boundary condition

unstrut_heterogeneous_rivers_top_layer_diff_recharge-no_recharge

Next steps

The next big step will be the implementation of a parallelization scheme using PETSc library

In development

  • OGS#PETSc interface for parallel computing
  • Solving of time dependent problems

Planned

  • Implementation of a linear parabolic pde solver
  • Extending the linear elliptic solver to non-linear problems
Assets 9
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6.0.2 - Intermediate DOI release

11 Aug 09:22
@bilke bilke
6.0.2-doi
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6.0.2 - Intermediate DOI release Pre-release
Pre-release

| Released on 2015/06/15, GitHub Release Link

Release notes

The second release of ogs6 introduces Neumann boundary conditions and VTK result output.

Features:

Fixes

  • Performance optimizations in VTK mesh conversion, PR #695
  • Improve layered prism mesh construction
  • Fix a lot of warnings on gcc/clang/msvc compilers improving the code

Infrastructure

Test examples

Next steps

In development

  • Heterogeneous fields (for e.g. hydraulic conductivity parameters)
  • Octree data structures for fast searches
  • OGS#PETSc interface for parallel computing

Planned

  • Parallelization scheme using PETSc library
  • Extending the linear elliptic solver to non-linear problems
Assets 2
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6.0.2

15 Jun 12:24
@bilke bilke
6.0.2
4c3cfd1
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6.0.2

| Released on 2015/06/15, GitHub Release Link

Release notes

The second release of ogs6 introduces Neumann boundary conditions and VTK result output.

Features:

Fixes

  • Performance optimizations in VTK mesh conversion, PR #695
  • Improve layered prism mesh construction
  • Fix a lot of warnings on gcc/clang/msvc compilers improving the code

Infrastructure

Test examples

Next steps

In development

  • Heterogeneous fields (for e.g. hydraulic conductivity parameters)
  • Octree data structures for fast searches
  • OGS#PETSc interface for parallel computing

Planned

  • Parallelization scheme using PETSc library
  • Extending the linear elliptic solver to non-linear problems
Assets 9
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6.0.1

04 Mar 11:47
@bilke bilke
6.0.1
d6e044a
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6.0.1

The 6th version of OpenGeoSys (OGS) is under way. After single and coupled FORTRAN modules in ROCKFLOW 1+2, the C version 3 with dynamic data structures, the object-oriented C++ parallelized version 4, completed with data integration and visualization tools by version 5; ogs6 - as an open source project - is aimed at performing on supercomputing platforms and providing complete workflows for solving of coupled multi-field problems in real world applications. The major paradigms of ogs6 are being developer-friendly, performing, and user-friendly.

Important links:

Release notes

The first version ogs6 is dedicated for elliptic problems.

Features:

  • Basic structures of processes
  • Mathematical operations are based on Eigen3 library
  • Linear solvers: DenseMatrix with Gauss elimination, and LIS (http://www.ssisc.org/lis/)
  • XML based IO
  • Standard finite element method (FEM)
  • Available element types: lines, triangles, quads, hexahedra
  • Dirichlet boundary conditions
  • Linear elliptic solver (e.g. Groundwater flow) for scalar quantities in homogeneous media

Fixes

  • DenseMatrix Gauss algorithm pivoting

Test examples

  • Example 1: Unit square (access)
  • Example 2: Unit cube (access): has 1000 hexahedra elements with Dirichlet boundary conditions (u=1|x=0) and (u=-1|x=1)

Next steps

In development

  • OGS#PETSc interface for parallel computing (02/2015*planned)
  • Neuman boundary conditions (03/2015*planned)

Planned

  • Parabolic solver
Assets 7
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