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NUIT >
SSCC >
HOWTOs >
Connect to the SSCC with MacOS X
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Connect to the SSCC with MacOS X
Look for the X11 application, which is found in Applications/Utilities. If it is not installed, get it from your Install DVD as an optional installation. Drag the X11 application to the Dock to make it easier to launch. Start X11. A small xterm window will appear, with a command prompt.
You can customize the size of the xterm window to make it larger. Choose Applications, Customize. I set up Terminal with the shortcut n to use the command xterm -geometry 110x59 That way, I have 110 columns and 59 rows when the xterm window opens.
If you are on a Mac that has a one- or two-button mouse instead of a standard UNIX three-button mouse, you will want to turn on three-button mouse emulation. UNIX X11 applications make extensive use of the middle and right mouse buttons. To turn this option on, choose the X11 menu, then Preferences. Choose the Input tab, and make sure that Emulate three button mouse is checked. Now you can access the middle button of the mouse by holding down the option key on the keyboard and clicking the left or only button on your mouse. You can access the right button of the mouse by holding down the command key and clicking the mouse button.
Copy a block of text into the X11 clipboard by highlighting it with the mouse. In most X11 applications, the text is automatically entered into the clipboard. Some applications may have a Copy button under the Edit menu. To paste, use the middle (option-left) mouse button. Some X11 applications will have a Paste button in their Edit menu. The interaction between OS X and X11 applications is separated. If an object is copied from a regular OS X application, it is automatically entered into both OS X and X11 clipboards. However, if an object is copied from within an X11 application, it is only entered into the X11 clipboard. The contents of the X11 clipboard can be placed into the OS X clipboard only by selecting Copy from the Edit menu for X11.
If you are connecting to the SSCC from off campus, you must first establish a Virtual Private Network (VPN) connection to the campus network before you open a connection with SSH. Establishing a VPN connection authenticates you to the NU network, and adds a level of trust and security to your connection. The Cisco VPN Client software is available at no charge under University license. See Set Up Cisco VPN for Macintosh for detailed instructions explaining how to download, install, configure and use the Cisco VPN Client software. Be sure to use the Cisco software for off-campus connections.
Graphical access to the interactive computers is useful for tasks that are not computationally-intensive, taking hours of time to execute. Graphical programs started using X11 run on the interactive computers, not on the compute nodes, so please do not perform long calculations with them. Remember to close your X11 session when you are done. Graphical programs are typically run in the background, to free your command line for further work. Follow the command for a graphical program with an ampersand (&) — for example, xstata & — to run xstata in the background in a separate window. Here are some of the programs with graphical interfaces you might want to use: Editors — emacs, gvim, lyx and nedit Document Viewers — acroread, gv, lyx, firefox and xdvi Graphics Tools — gimp, xfig PBS Pro Utilities — xpbs, xpbsmon TeX Utilities — lyx, xdvi Statistical Applications — matlab, R, sas, Splus, xstata Utilities — gftp, xclock, xterm acroread — Acrobat reader for viewing PDF files emacs — GNU project Emacs editor gftp — graphical ftp/sftp client for downloading files from other servers directly to the cluster gimp — an image manipulation and paint program gv — a PostScript and PDF viewer gvim —Vi IMproved, a programmer's text editor lyx — a document preparation system matlab — a computational, visualization and programming environment (run with the command matlab -jvm -desktop) mozilla — a Web browser for X11 derived from Netscape Communicator nedit — windows-like text editor for creating and editing your programs and shell scripts R — a language for data analysis and graphics sas —an integrated applications system for data access, management, analysis and presentation Splus — an interactive environment for data analysis and graphics (run with the command Splus -g) xclock — display an analog or digital clock in an X window xdvi — DVI previewer for the X window system xfig — Facility for Interactive Generation of figures under X windows xpbs — graphical front end to PBS commands to manage batch jobs xpbsmon — monitor execution hosts under PBS xstata — Stata with the graphical desktop xterm — terminal emulator for X windows
You can use the command-line secure shell file transfer program named sftp to transfer files between your Mac and the SSCC. I usually work from my Mac Desktop, so the first thing I do at the X11 command prompt is change my working directory to the Desktop:
Then connect to seldon: macnelly:~/Desktop bef$ sftp bef@seldon.it.northwestern.edu Change my working directory on seldon to Workshop: sftp> ls Hello Myname Myname.o28249 PBS4 PBS4.o28248 PBS8 Setup machinefile makefile mpihello mpihello.f myname myname.c pi3f90 pi3f90.f90 sftp> I can retrieve a file with get (transfer from seldon to my Mac): sftp> get PBS4 I can send a file from my Mac to seldon with put: sftp> put PBS4 Of course, quit gets me out of the sftp session.
Fugu is a graphical program that runs on your Mac that functions as a Secure File Transfer application. Fugu was developed by the University of Michigan Research Systems Unix Group. Get Fugu from http://rsug.itd.umich.edu/software/fugu/.
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