Build a singularity sandbox: Transfer image ubuntu-v20.04.simg from /opt/site/examples/open3d/ to your local machine. Make sure singularity is installed in your computer. For installation please look at the installation instructions in https://docs.sylabs.io/guides/2.6/user-guide/quick_start.html#quick-installation-steps Once singualrity is installed you can use sandbox to install additional packages. Use the followingsudo singularity build --sandbox ubuntu-v20.04 ubuntu-v20.04.simgThis will a create directory "ubuntu-v20.04". Get an interactive shell in the sandboxexport SINGULARITYENV_PREPEND_PATH="/opt/miniconda3/bin"sudo singularity shell --writable ubuntu-v20.04singularity build ubuntu-v20.04.simg ubuntu-v20.04This will update the image To replicate process in %environment def, once setting writable shell in sanbx, create /environemnt and enter the commands. Equivalent to %runscript, inside sandbox create / singularity or or newer versions, try: /.singularity.d/runscript

On GPU node jupyter lab --no-browser --port 7077 From local machine ssh -t -t am2455@wulver.njit.edu -L 7077:localhost:8088 ssh n0002 -L 8088:localhost:7077 Conda Create .condarc in $HOME directory and add the following auto_activate_base: false envs_dirs:

First create the following # >>> conda initialize >>> # !! Contents within this block are managed by 'conda init' !! __conda_setup="$('conda' 'shell.bash' 'hook' 2> /dev/null)" if [ $? -eq 0 ]; then eval "$__conda_setup" else if [ -f "$EBROOTANACONDA3/etc/profile.d/conda.sh" ]; then . "$EBROOTANACONDA3/etc/profile.d/conda.sh"

Wulver Root folder of MATLAB installation for workers NumWorkers 512 NumThreads 1 Cluster Environment unix

To use Fluent in Lochness user needs to set up the case in Fluent installed on the local machine. If the problem is transient, user needs to select Calculation Activities. To save the data at a particular time step interval user needs to select Edit option in Autosave Every (Flow Time) [s] In the File name option user needs to provide the subdirectory where the data will be saved and the file name. For example, in this above figure, data/spray-geometry means the fluent data will be saved in the data subdirectory and with the filename prefix spray geometry. User needs to create the data directory under the case directory in Lochness. Similarly, for post-processing, user can export the data in ensight format and can select Edit from the Automatic Export option.