FLTK

Overview

FLTK (pronounced "fulltick") stands for Fast Light Toolkit. It is a cross-platform C++ GUI toolkit for UNIX®/Linux® (X11), Microsoft® Windows®, and MacOS® X. It provides modern GUI functionality without the bloat and supports 3D graphics via OpenGL® and its built-in GLUT emulation.

More information: https://www.fltk.org/

Usage

Login to Gadi with X11 (X-Windows) forwarding. Add the -Y option for Linux/Mac/Unix to your SSH command to request SSH to forward the X11 connection to your local computer. For Windows, we recommend to use MobaXterm (http://mobaxterm.mobatek.net) as it automatically uses X11 forwarding.

You can check the versions installed in Gadi with a module query:

$ module avail fltk

We normally recommend using the latest version available and always recommend to specify the version number with the module command:

$ module load fltk/1.3.5

For more details on using modules see our modules help guide at https://opus.nci.org.au/display/Help/Environment+Modules.

Start an interactive PBS job with the following command on Gadi. It requests 1 CPU core, 2 GiB memory, and 8 GiB local disk on a compute node on Gadi from the normal queue for its exclusive access for 30 minutes against the project a00. It also requests the system to enter the working directory once the job is started. To change the number of CPU cores, memory, or jobfs required, simply modify the appropriate PBS resource requests in the qsub command below according to the information available at https://opus.nci.org.au/display/Help/Queue+Structure. Note that if your application does not work in parallel, setting the number of CPU cores to 1 and changing the memory and jobfs accordingly is required to prevent the compute resource waste.

Also note that you must include -l storage=scratch/ab12+gdata/yz98 to the qsub command below if the job needs access to /scratch/ab12/ and /g/data/yz98/. Details on https://opus.nci.org.au/display/Help/PBS+Directives+Explained.

$ qsub -I -X -P a00 -q normal -l ncpus=1,mem=2GB,jobfs=8GB,walltime=00:30:00,wd

When the interactive job starts on Gadi, execute the followings commands:

# Load module, always specify version number.
$ module load fltk/1.3.5
 
$ ./fltk_program

To see the documentation of FLTK visit https://www.fltk.org/documentation.php.