Computational Resources

This is the new comp resources page (as of 23-dec-2001). You will find a lists of the public machines in the group and some pointers on our unix setup. For historical (and humorous) purposes as well as for some more info here's the old computational resources page (circa 96-97)

Hardware

We have various UNIX flavored machines in addition to the windows ones. The group had a strong SGI presence and more recently some on Digital Unix. Nowadays we also have Mac OS X and linux machines.

Machine name	OS version / CPU from uname -a
arp.media.mit.edu	OSF1 V4.0 564 alpha
ligeti.media.mit.edu	OSF1 V4.0 878 alpha
obie.media.mit.edu	IRIX64 6.5 10120105 IP30
moog.media.mit.edu	IRIX64 6.5 10120105 IP30
xenakis.media.mit.edu	Linux 2.4.7-10smp #1 SMP i686
yngwie.media.mit.edu	Darwin 5.2 powerpc (aka OS X 10.1.2)

In addition to our machines we also have access to the Network & Media group machines, most notably:

Machine name	OS version / CPU from uname -a
rakimou.media.mit.edu	Linux 2.4.12 #3 SMP i686
scoobs.media.mit.edu	Linux 2.4.12 #3 SMP i686
seph.media.mit.edu	Linux 2.4.12 #3 SMP i686
aphex.media.mit.edu	Linux 2.4.12 #3 SMP i686
odyssey.media.mit.edu		Darwin 5.2 powerpc (aka OS X 10.1.2)

Alphas:

Arp and ligeti are very fast at numerical computations and they are reccomended for that. Unfortunately they do not have the latest OS version running so we can’t run MATLAB 6.x on them, but MATLAB 5.x works fine. At some point we have to upgrade them ... Arp has more memory than ligeti so it is better for big numerical problems. Arp is Barry’s office, ligeti is under our common area table.

SGIs:

Obie and moog are octanes. Obie is a dual processor machine while moog is uniprocessor. Moog is currently fried, but we should have a new power supply sometime soon and have it up and running. They are excellent audio machines, plus we have some 8 channel audio I/O hardware for them (although not plugged in). Highly recomended for real-time audio projects. Both are under our common area table.

Linux:

Our linux machine is xenakis which is Brian’s machine so you should not consume his cycles. Instead log onto the networks & media machines (and avoid aphex which is also a personal machine). If you have problems logging in ask dimitri to enable your account on them. All of these machines are under the west table. All of the linux machines are dual cpu P4s. Very fast and with oodles of memory so they are good for large problems.

Mac OS X:

Yngwie is my personal workstation and under my desk, and is a dual processor machine (887Mhz). Odyssey is the middle table of the common area and is also a dual processor (500MHz). Both have Mac OS 9.2.x if you need to run any old Mac applications. There is one more Mac which will end up at the studio, I suspect it will be an OS 9 though since it has to run ProTools.

Software

Binaries:

For all of our machines we keep common binaries, libraries, etc at /mas/bvg/re/local/ The appropriate directory is soft linked to /usr/local/ on the local disks. So make sure that /usr/local/bin/ is in your unix path. To find more binaries you can peruse /mas/bin/ /mas/vision/bin /mas/ /mas/garden/local/bin/ and /mas/agents/bin/

The Mac macihnes also have some local applications in the /Applications directory.

Matlab can be found at /mas/system/matlab/ There are various versions to choose, 6.x is fine for SGIs and Linux whereas 5.x will have to do for the alphas until we upgrade their OS.

All of out machines have ssh and sftp enabled. Telnet/rsh/rlogin/ftp et al are disabled for security reasons.

Obie is also running a web server and can serve as a backup for www or sound. You can also dump web things in it at /var/www/htdocs Don’t overload it though since this is part of the local disk and it might fill up.

Source code and other goodies:

In /mas/bvg/ti/MLGToolbox you will find various goodies that the group has developed throughout time. There is code for all sorts of audio and numerical processing. You are encouraged to put some of your (working!) stuff there for future generations. Most of the code is not intended to be public so don’t go out distributing it.

On the numerical side we have the source code for the «Numerical Recipes in C» book at /mas/bvg/re/local/iris/src/numerical_2nded/ We also have vendor libraries for FFTs, linear algebra and other nice things. On the alphas link with –ldxml, on the SGIs link with -lscs (also –lscs_mp for multiprocessor code), on the OS X with –lcomplib and on the Linux machines with the daunting: -L/mas/u/paris/Attic/lib/linux-i686/mkl/LIB -I/mas/u/paris/Attic/lib/linux-i686/mkl/INCLUDE -lmkl32_lapack -lmkl32_p4 -lg2c -lpthread