To get access to this application :
- on Linux/Unix, simply type the command
vle --helpin a terminal. The CLI VLE has to be into the
- on Windows, open a command interpreter (application
cmd.exe) and type the absolute path to the VLE binary location e.g.:
c:\vle-2.0\bin\vle-2.0 --help. By default VLE is not set into the default PATH environment variable, otherwise the command
vle --helpshould work.
The package mode
The package mode of vle application
vle -P mypackage is used to manipulate
packages. A typical use case of these commands is :
First you can generate a template package in the current directory with
-P mypackage create. Note that you can use any name for your package, if it is
not already used. To see the package names that are already used, use the
vle --list. The directory created has the structure detailed in the
packages page. Then you could configure and build the package
vle -P mypackage configure build. The configure command actually calls
cmake in order to initiate the compilation process. A directory
mypackage/buildvle is then created. The build command will call
make install. The binaries are installed into the VLE_HOME: more precisely into
VLE_HOME/pkgs-2.0/mypackage. Note that you can
customize how vle calls
make via the commands configure and build
by editing the vle.conf file.
Then you can start modelling (creating/modifying VPZ and cpp files) by using the gvle application. Before simulation, you have to call compilation processes (commands configure and build).
You can now simulate your models calling
vle -P mypackage mymodel.vpz. It
will call the simulation of the model
VLE_HOME/pkgs-2.0/mypackage/exp/mymodel.vpz. The output files (if there are
some) are produced into the current directory. If your model contains an
experiment plan (many combinations of inputs) and you want to perform
simulation in parallel, you can use the commands
The first one declares that you will simulate all the input combinations, the
second is used to give the number of threads to use for parallel simulations.
vle -P --manager --processor=5 -P mypackage mymodel.vpz
If you want to remove the binaries of your application you can use
mypackage clean or
vle -P mypackage rclean. The first one will remove the
mypackage/buildvle. The second one will remove the directory
VLE_HOME/pkgs-2.0/mypackage. If you prefer, you can instead use your file
explorer directly in order to remove those directories.
If you want to produce a compressed archive of your package in order to share
it with others, you can call the command
vle -P mypackage package.
The verbose mode
The verbose mode of vle application
vle -V verbosity -P mypackage mymodel.vpz
is used to trace the simulator at run time. A typical use case of these commands is :
vle -V 7 -P mypackage mymodel.vpz
where you want to get as much as possible informations during the simulation.
Verbosity levels are between 0 and 7, and the default is 3
The level semantic is:
- 0 system is unusable
- 1 action must be taken immediately
- 2 critial conditions
- 3 error conditions
- 4 warning conditions
- 5 normal, but significant, condition
- 6 informational message
- 7 debug-level message
Warning, in order to have the debug service available, make sure that vle is built with the debug option for example like this (Unix case):
cd vle-your_release mkdir build && cd build export QT_SELECT=qt5 cmake -DCMAKE_INSTALL_PREFIX=/usr/local -DCMAKE_BUILD_TYPE=Debug .. make -j4 make install make test
The remote mode
The remote mode of vle application
vle --remote is used to download or
install packages that are available in distributions. One
can declare new remote distributions by adding remote URL into the vle.conf
file . Be very careful to add only URLs you trust in.
By default, there is the VLE distribution. A typical use case
of these commands is:
First you can update the state of your local packages with:
vle -R update
This command modifies the
located into the VLE_HOME. The first one lists the packages
installed on your computer, the second lists the packages available for
installation. They have the same format as the
packages.pkg file of
distribution. The update command will also gives the packages
for which there are new updates on the remote distributions.
Then you can search for a particular remote package to install. For example, to
search for the package
vle.output distributed by the VLE
distribution, you can use the command (eg. on windows):
C:\>c:\vle-2.0\bin\vle -R search vle.output Found remote packages: vle.output from http://www.vle-project.org/pub/2.0
The command gives the packages that have been found and the URL where they are stored.
Finally you can install the package with the command:
vle -R install vle.output
This will download into a temporary directory the package source and launch the compilation processes described into the package mode.
The config mode
The configuration mode
vle -C is a feature that allows you to update
values of the vle.conf file. It is provided so that
users do not edit the
vle-2.0.conf file directly.