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Table of Contents
Connecting to the CHPC
The CHPC hosts two systems of supercomputers:
- IBM®
- e1350 cluster
- Blue Gene/P™
- SUN®
- Nehalem™ cluster
- Hapertown™ cluster
- M9000
- Nvidia® visualization
Each system has a single login node which is connected to the Internet and allows connections to the separate supercomputer of each system.
Logging In
Connections to the login nodes of the CHPC machines is via the ssh protocol. To connect use
ssh -l username login-node.chpc.ac.za
where login-node is replaced by the hostname for the login node of the system you wish to connect to, and username is replaced by the user name assigned to your account at the CHPC.
Hostnames
The hostnames and IP addresses for all CHPC login nodes are listed below. Note that if you are connecting from UCT or the CSIR please use the dedicated address for those subnets, otherwise use the primary address.
| System | Host Name | IP Number | |
|---|---|---|---|
| IBM | Primary login node | ssh.chpc.ac.za | |
| …if connecting from CSIR | chpc.csir.co.za | ||
| …if connecting from UCT | |||
| SUN | Primary login node | sun.chpc.ac.za | |
| …if connecting from CSIR | chpc.csir.co.za | ||
| …if connecting from UCT |
Transferring Files
Use scp or sftp to transfer files to or from your home directory on the CHPC systems. For example
scp src.tar.gz username@ssh.chpc.ac.za:
to copy the file src.tar.gz to your home directory on the IBM e1350 cluster.
MS Windows
Should you be using a MS Windows computer to connect to the CHPC we suggest you download and install the open source PuTTY and WinSCP clients:
| Windows Application | Provides | Home page | |
|---|---|---|---|
| PuTTY | ssh | http://www.chiark.greenend.org.uk/~sgtatham/putty/ | download |
| WinSCP | scp/sftp | http://winscp.net/ | download |
