GetDP - a General environment for the treatment of Discrete
Problems
GetDP is a general finite element solver using mixed
elements to discretize de Rham-type complexes in one, two and three
dimensions. The main feature of GetDP is the closeness between the
input data defining discrete problems (written by the user in ASCII data
files) and the symbolic mathematical expressions of these problems.
GetDP is a command-line program. See Gmsh for a
graphical front-end.
This man page does not describe the syntax of the input files: you
should refer to the info documentation for this (e.g. with info
getdp). Up-to-date versions of the manual in various formats are
available at http://getdp.info.
- file
- is an ASCII file containing the problem definition, i.e., the structures
the Texinfo documentation will teach you to create. This file can include
other files, so that only one problem definition file should always be
given on the command line. The input files containing the problem
definition structure are usually given the .pro extension (if so,
there is no need to specify the extension on the command line). The name
of this file (without the extension) is used as a basis for the creation
of intermediate files during the pre-processing and the processing
stages.
- -pre
resolution-id
- performs the pre-processing associated with the resolution called
resolution-id. In the pre-processing stage, GetDP creates
the geometric database (from the mesh file), identifies the degrees of
freedom (the unknowns) of the problem and sets up the constraints on these
degrees of freedom. The pre-processing creates a file with a .pre
extension. If resolution-id is omitted, the list of available
choices is displayed.
- -cal
- performs the processing. This requires that a pre-processing has been
performed previously, or that a -pre option is given on the same
command line. The performed resolution is the one given as an argument to
the -pre option. In the processing stage, GetDP executes all
the operations of the selected resolution (such as matrix assemblies,
system resolutions, ...). The processing creates a file with a .res
extension.
- -pos
post-operation-id(s)
- performs the post-processing operations selected by the
post-operation-id(s). This requires that a processing has been
performed previously, or that a -cal option is given on the same
command line. If post-operation-id is omitted, the list of
available choices is displayed.
- -msh
filename
- reads the mesh from filename rather than reading it from the
default problem file name with the .msh extension appended.
- -msh_scaling
value
- multiplies the coordinates of all the nodes in the mesh by
value.
- -restart
- resumes time loop processing from where it stopped.
- -solve
resolution-id
- same as -pre resolution-id -cal.
- -split
- saves processing results in separate files (one for each timestep).
- -res
filename(s)
- loads processing results from filename(s) instead of from the
default problem file name with the .res extension appended.
- -name
string
- uses string as the default generic file name for input or output of
mesh, pre-processing and processing files.
- -adapt
filename(s)
- reads adaptation constraints from filename(s).
- -order
float
- specifies maximum interpolation order.
LINEAR SOLVER OPTIONS
- -solver
filename
- specifies solver parameter file.
- [PETSc options]
- PETSc options (if GetDP was compiled with PETSc support).
LINEAR SOLVER OPTIONS
- -bin
- creates binary output files. -v2 creates mesh-based Gmsh output
files when possible
- -check
- lets you check the problem structure interactively.
- -v int
- sets the verbosity level. A value of 0 means that no information will be
displayed during processing. Higher values increase the amount of
information displayed.
- -p int
- sets the progress update rate. This controls the refreshment rate of the
counter indicating the progress of the current computation.
- -onelab name
address
- communicates with OneLab server through socket.
- -version
- displays the version number.
- -info
- displays detailed version information.
- -help
- displays a message listing basic usage and available options.
Patrick Dular (patrick.dular at ulg.ac.be) and Christophe Geuzaine
(cgeuzaine at ulg.ac.be). See the documentation for a comprehensive list of
contributors.
gmsh(1), GetDP examples (/usr/share/doc/getdp-*/),
GetDP homepage (http://getdp.info).
The full documentation for GetDP is maintained as a Texinfo
manual. If the info and getdp programs are properly installed
at your site, the command
- info getdp
should give you access to the complete manual.