CHANGELOG.md



To find the state of this project's repository at the time of any of these versions, check out the tags.


Release notes

6.0.5 (in preparation)

Features:

Added an ODE solver library that can solve transient and nonlinear processes
(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
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).


Axis aligned bounding box:

Is now a from the right half-open interval.
Removed template from class declaration.


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
Command line argument -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
OGSFileConverter is now a separate library
Raster file to structured grid conversion can now convert pixel values in user-defined scalar arrays
All scalar arrays will be displayed in mesh information window in DataExplorer
Added generation of structured meshes to DataExplorer
Restructured mesh creation access in DataExplorer
Mesh layers can be added to existing meshes in DataExplorer
Rework tools:

CreateBoundaryConditionsAlongPolyline
AddTopLayer
ResetPropertyInPolygonalRegion
removeMeshElements


Infrastructure

Minimum Boost version: 1.56.0. #943
Boost requirement is now header-only. #940
Optional support for VTK 7. #1083
Test data is now a git submodule. #1000
In-code defined Jenkins jobs. #970
Use clang's address and undefined behaviour sanitizers on Jenkins now. #958


Documentation

Speed up builds with ccache, #938
Overview of the new non-linear, transient solver in [ODESolver](see
http://doxygen.opengeosys.org/df/d35/group__ODESolver.html) source code
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.


6.0.4

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

Added offline viewable Doxygen documentation


Fixes

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


6.0.3

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


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.


Implemented OctTree for fast searching
points and nodes


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

Replace quickcheck with autocheck. See https://github.com/thejohnfreeman/autocheck.git
for more details on autocheck
Added support for cross-compiling with MXE: build native Windows binaries on Linux and Mac OS, see Cross-Compiling help page and #767
Migrated to new Travis infrastructure (faster build times), see #775
Simplified CMake library linking, see #769


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


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


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:

Neumann boundary conditions
Implement mesh properties for storage of data fields. This also includes mapped values (e.g. based on material id) PR #542, PR #644,
Refactored mesh property classes to enable VTK output

Extended the available elements to quadratic (e.g. Quad8) based on generalized "element rules".  #572, PR #656, PR #657,
Extend computation of shape matrices to lower dimensional elements embedded in higher dimensional space #655

Builds with MinGW (GCC) on Windows, see Developer Guide and the new MinGW platform instructions
Cross-compiling for Windows with MXE on Mac OS
Support for new cross-platform IDE CLion
Add gradual refinement to the structured mesh generator PR #539

Add a command line tool "queryMesh" to search mesh information PR #665

Add a command line tool "AddTopLayer" to add an additional top layer (for example a soil layer, see also the documentation) PR #649


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 runtime is monitored at Jenkins for normal and nightly large tests

Utilities are build by separate Jenkins Jobs, e.g. Win_Utils


Test examples


Groundwater flow (Neumann):


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


6.0.1
| Released 2015/03/02, GitHub Release Link
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:


Getting started tutorial: http://docs.opengeosys.org/docs/quickstart


Descriptions of selected benchmarks: http://docs.opengeosys.org/docs/benchmarks


Source code access: https://github.com/ufz/ogs


Developer guide: http://docs.opengeosys.org/docs/devguide


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
Fixing mem-leaks on DataExplorer start up
Fixing resizing and layout issues in various DataExplorer dialogs


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