What is Screen?
Screen is a full-screen window manager that acts as a terminal multiplexer. With it, any number of console-based applications can be run within a single terminal. Screen also has the ability to decouple the terminal emulator from the running programs. This allows programs started from screen to continue running after the connection to the terminal is lost, whether accidently, or with a logout. These programs can later be connected to again using screen.
Screen is installed on all the UNIX workstations. To use screen to run a remote process, first you must connect to a remote machine. We have Putty installed on the Windows systems and OpenSSH installed on the UNIX machines. For more information on using ssh, please this guide.
Once connected to a remote server, start a new screen session. This is accomplished by typing in "screen" (no quotes) at the terminal. The screen should blank for a second and then give you a prompt.
Once screen is running, processes that are started through screen will allow you to disconnect from the server without halting the process. Once it has started you need to disconnect your screen session. To do this you must type Ctrl-a d (hold "Ctrl" and "a" at the same time, release them and hit "d"). You should get a message stating that the session was "[detached]". Feel free to log out of the terminal.
To check the results or status of the programs, log back in to the same server. Instead of typing "screen" as when starting, type "screen -r". The -r is for reconnect. This should reconnect the earlier screen session.
Note: If more than one screen session is running per user on a server, reconnecting screens requires an additional step. After running "screen -r", the user will receive a response of "There are several suitable screens on:" followed by a list of screen sessions available. Select the desired screen session, and run "screen -r [jobid]", replacing [jobid] with the desired session's id number.
Getting Help in Screen
Screen does much, much more than described above. You can type Ctrl-a? for a list of commands available while in screen.
SODA is a Structural Optimization, Design and Analysis computer program for use by structural engineers. The program has been developed over many years by a research group in the Civil Engineering Department of the University of Waterloo, Canada, in conjunction with a broad base of practising engineers throughout North America to ensure that the program meets the practical needs of the structural engineering community.
Sonnet's suites of high-frequency electromagnetic (EM) Software are aimed at today's demanding design challenges involving predominantly planar (3D planar) circuits and antennas. Predominantly planar circuits include microstrip, stripline, coplanar waveguide, PCB (single and multiple layers) and combinations with vias, vertical metal sheets (z-directed strips), and any number of layers of metal traces embedded in stratified dielectric material.
The ECE Shop manages the installation of this program.
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