| Target Name: | Venus |
| Spacecraft: | Magellan |
| Produced by: | Calvin J. Hamilton |
| Copyright: | © Calvin J. Hamilton |
Welcome to a lab with lots of computing power! The main power is in our linux cluster. The cluster currently consists of 12 computing machines. These machines mostly do not have hard drives, and are booted over the network from one image. This means these machines are equivalent as far as operating system and software. They all mount the home and lab directories over the network as well, so everything should look the same, no matter which machine you log onto.
| hostname | cpu | memory |
|---|---|---|
| lena | 4 x 8-Core 2.3 GHz | 32 GB |
| metheny | 4 x 8-Core 2.3 GHz | 32 GB |
| pat | 4 x 8-Core 2.3 GHz | 32 GB |
| sarah | Dual Core 2.8 GHz | 4 GB |
| martino | Dual Core 2.8 GHz | 4 GB |
| oscar | Dual Core 2.8 GHz | 4 GB |
| ronnie | Dual Core 2.6 GHz | 3 GB |
| nina | 2.4 GHz | 3 GB |
| herbie | 2.4 GHz | 2 GB |
| These two machines are not 64 bit, so do not run the latest matlab, and are running a very old version of Debian (netboot is separate from above computers): | ||
| miles | 2.1 GHz | 2 GB |
| coltrane | 2.1 GHz | 2 GB |
| This computer is available, but does not have all of the software of the above computers, because it runs the scheduler, and is not netbooted. It will schedule jobs to itself if it is free, but probably you should use one of the above machines if you want to log in: | ||
| bettye | Dual Core 2.4 GHz | 3 GB |
For an overview of the current state of these computers, go to http://www.shadlen.org/munin/Cluster/Summary.html . To see an overview all of the hardware on each, check out this page . These machines can be accessed from the workstations in the lab or by ssh. Each workstation has access to at least one of the machines. There is a KVM box with cables coming out and buttons that allow you to switch which machine the keyboard and monitor are connected to. To access through ssh from a linux machine, open a terminal and type:
# ssh -Y username@computer.shadlen.org
(where username is your login name, computer is one of the cluster machines, and option Y allows remote graphics) on a command line, from a linux, mac or a windows machine. It is also possible to secure copy files to/from these machines: from a linux machine or mac and from a windows machine. These machines have matlab, xemacs, mri imaging software (Caret, Surefit, and ImageJ), several web-browsers: iceweasel, epiphany, and google-chrome; a couple of email clients, icedove and evolution; and most other typical linux programs. (: commented out since no test machine available at the moment: Mingus is our test machine, so it will usually have newer versions of software on it. People are encouraged to use mingus to test new versions of software, and occasionally I will send out emails that we are going to update the rest of the machines to the state of mingus, and encourage people to test mingus more thoroughly. Mingus has all of the same programs as the cluster machines available on it, and is available on one of the belkin boxes in the computer area of the lab. :)
All of the cluster machines, with the exception of the older ones, miles and coltrane, have the Matlab parallel toolbox installed and can be used for parallel computing. For more information using the cluster for parallel computing, please see this page.