If you want to refer to the machine as cheaha , you'll have to either add the "rc. Or you can customize your SSH configuration to use the short name "cheaha" as a connection name. This section will cover two clients that are commonly found on UAB Windows systems.
Of the Windows clients we've used, MobaXterm is the easiest to use and feature complete. Features include but not limited to :. Start MobaXterm and click the Session toolbar button top left. Once finished, double click cheaha. SSH Secure Shell is a commercial application that is installed on many Windows workstations on campus and can be configured as follows:. No matter which client you use to connect to the Cheaha, the first time you connect, the SSH client should display a message asking if you would like to import the hosts public key.
Answer Yes to this question. Congratulations, you should now have a command prompt and be ready to start submitting jobs!!! All work on Cheaha must be submitted to our queuing system Slurm. A common mistake made by new users is to run 'jobs' on the login node. This section gives a basic overview of what a queuing system is and why we use it.
Slurm was developed at the Lawrence Livermore National Lab and currently runs some of the largest compute clusters in the world. Accurate resource requests are extremely important to the health of the over all cluster.
In order for Cheaha to operate properly, the queing system must know how much runtime and RAM each job will need. Set a limit on the total run time of the job allocation. Request that a minimum of minnodes nodes be allocated to this job. A maximum node count may also be specified with maxnodes. If only one number is specified, this is used as both the minimum and maximum node count.
This option advises the Slurm controller that job steps run within the allocation will launch a maximum of number tasks and to provide for sufficient resources. The default is one task per node. Advise the Slurm controller that ensuing job steps will require ncpus number of processors per task. Without this option, the controller will just try to allocate one processor per task. Request a specific partition for the resource allocation. Available partitions are: express max 2 hrs , short max 12 hrs , medium max 50 hrs , long max hrs , sinteractive hrs.
Batch Jobs are submitted on Cheaha by using the "sbatch" command. The full manual for sbtach is available by running the following command. To submit a job to the queuing systems, you will first define your job in a script a text file and then submit that script to the queuing system. If you submit a job script formatted as a Windows or Mac text file, your job will likely fail with misleading messages, for example that the path specified does not exist.
Do NOT use Notepad to create files intended for use on the clusters. Instead use one of the alternative text editors listed in the following section.
There are many good text editors available for Windows that have the capability to save files using the UNIX file format. Here are a few:. A shared cluster environment like Cheaha uses a job scheduler to run tasks on the cluster to provide optimal resource sharing among users.
Cheaha uses a job scheduling system call Slurm to schedule and manage jobs. A user needs to tell Slurm about resource requirements e. CPU, memory so that it can schedule jobs effectively. Following is a simple job script that prints job number and hostname. Open Internet Explorer, select the Tools button, and then select View downloads.
In the View Downloads dialog box, select Options in the lower-left. Choose a different default download location by selecting Browse and then selecting OK when you're done. Internet Explorer uses add-ons such as Adobe Reader to view some files in the browser. If a file that needs an add-on won't open, you might have an older version of the add-on, which needs to be updated.
When you download a file, Internet Explorer checks for clues that the download is malicious or potentially harmful to your PC. If Internet Explorer identifies a download as suspicious, you'll be notified so you can decide whether or not to save, run, or open the file.
Not all files you're warned about are malicious, but it's important to make sure you trust the site you're downloading from, and that you really want to download the file.
If you see a security warning that tells you the publisher of this program couldn't be verified, this means that Internet Explorer doesn't recognize the site or organization asking you to download the file. Make sure you recognize and trust the publisher before you save or open the download. There are always risks to downloading files from the web.
Here are some precautions you can take to help protect your PC when you download files:. If the file has a digital signature, make sure that the signature is valid and the file is from a trusted location. To see the digital signature, select the publisher link in the security warning dialog box that opens when you first download the file. Jump to: navigation , search. UAB has an Enterprise contract with Box. This page describes what we have learned about doing bulk-transfers of data.
Personal tools login. Namespaces Page Discussion. Views Read View source View history. This page was last modified on 15 October , at To move data from your local storage to cheaha, using rsync, you can use the following command, on your local system:. To move data from cheaha to your local storage, using rsync, you can use the following command, on your local system:. Do not store sensitive information on this filesystem.
It is not encrypted. Note that your data will be stored on the cluster filesystem, and while not accessible to ordinary users, it could be accessible to the cluster administrator s.
If the data that you are moving is large, then you should always use either an interactive session or a job script for your data movement. This ensures that the process for your data movement isn't using and slowing login nodes for a long time, and instead is performing these operations on a compute node. NOTE: Please change the time required and the corresponding partition according to your need.
Download the FileZilla Client version to transfer from local to Cheaha.
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