ARPS mini tutorial for CFD 2003 class
10/9/2003

Presentations on ARPS Part I, Part II.

Geting the ARPS code

Get the latest version of ARPS package from the Download page at http://www.caps.ou.edu/ARPS. You need to fill in the registration page to be able to download the package. The version as of 10/9/2003 is 5.0.0IHOP_6 and the tar file is arps5.0.0IHOP_6.tar.gz. This is the standard procedure for getting the latest version of ARPS and I encourage you go through it and register! For this tutorial, you can use the version you have to your Homework #1.

Do "gunzip arps5.0.0IHOP_6.tar.gz" to unzip the file, then " gunzip arps5.0.0IHOP_6.tar" to untar the package. Directory arps5.0.0IHOP_6 should have been created.

Runing ARPS

For job that requires significant CPU time, Sooner is a good choice. For smaller jobs (most 2D jobs and 3D jobs of say 50x50x35 grid size), you can run them on the SOM Metlab workstations interactively and get the job done in from minutes to few hours. For Sooner jobs, you should run the jobs in batch mode. The batch scripts using for your Homework #1 can be tailed for this purpose and you already not the commands to submit the job and check the status of your job.

The home directory of Sooner has limited space so you should send/keep you large data sets on the /scratch disk.  Your source codes and other permanent data files should be kept in home directory.

To ensure that the shell environment is setup properly, copy ~home/mxue/.cshrc and ~home/mxue/.alias into your home directory (if you have not done so already) and relog in or do ‘source .cshrc’ and ‘source .alias’. You need to do this only once.

Documentations

And updated version of ARPS User’s Guide Chapter 3 and  Chapter 4 are especially useful.

A Quick Guide for most programs/modules is also available. The PDF version is here.

http://www.caps.ou.edu/ARPS/arpsdoc.html is the source of various documentations on ARPS. The ARPS 4.0 User’s Guide is outdated but still useful. The three ARPS description papers (Xue et al 2000, 2001, 2003) linked to at the end of this page give more up-to-date description of the formulation and capabilities of the ARPS system.

README file in arps directory has a brief instruction on running ARPS.

Getting Help

For questions/problems in using Sooner and its batch queue, send e-mail to Gorge Brandon (bcg@ou.edu) or Scott Hill (sdkill@ou.edu).

For general ARPS questions, e-mail arpssupport@ou.edu.

Excecises