Archive for the ‘Uncategorized’ Category
Monday, March 10th, 2014
MI computing servers
Name # cores Proc. type Speed Memory Date purc.
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mi-loke 4*8 Intel Xeon 2.7GHz 384GB 2013.09.05
Is running linux the operating system.
Login
From a VPN connection, you may use ‘ssh mi-loke.klientdrift.uib.no’.
Be nice policy
Both MATLAB and R have functionality for starting “cloning” processes.
- Please do not start more than 32 parallel processes (per user/group) on each machine. By “group” it is meant ABM, Pure Math and Statistics.
- Learn about the “top” command in linux to locate a machine with low current load.
It is the “load average: 0.00, 0.01, 0.05” on the first line of the output from top that shows the current load of the machine (a load of 64 is acceptable for these machines).
To find out which other members in a group that is using the machine please use the command “finger”.
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Tags:Computing, Regnetjener, Services
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Monday, June 10th, 2013
Test. (After years of hibernation it is possible that this blog will wake up.)
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Wednesday, March 2nd, 2011
Programsystemet “sage” er nå installert på alle instituttets maskiner. I en standardinstallasjon ligger det på /usr/local/bin/sage. Start programmet ved å skrive “sage” i et terminalvindu. Når sage starter opp, følg anbefalingen om å skrive “notebook()”, så får du et grafisk grensesnitt (i din nettleser) mot sage og alle de programmer som løper under sage.
Fullstendig dokumentasjon finnes på http://sagemath.org/doc/.
Det er også mulig å installere sage på en Mac.
Tags:Mathematics, Software
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Friday, January 9th, 2009
To print from a Macintosh running OS X 10.6 (Snow Leopard), follow these instructions. When you get to the point where you are asked to name the print queue (“kø”), refer to this list to get the names of the printers in the department. For example, the queue for the printer “Emma” in room 532 is “Mi09_emma” (without the quotation marks).
You may remember earlier times when we had to use the “Samba” protocol for printing. Now it is much easier!
Tags:Macintosh, Printing, Private computer
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Thursday, October 18th, 2007
Every employee can create a guest account at the wireless net for one day, three days or one week on the tjinfo webpage . Remember that guests logging in via the wireless net must enter username of the form username@gjest
Alternatively, if you log in to sebra.uib.no you can create a kurskonto. This kind of account gives access to both stationary machines and to the wireless net. In this situation guests logging in via the wireless net must enter username of the form username@kurs
Tags:Guest Account, Services
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Wednesday, August 15th, 2007
If you want remote access to web-pages that are only available from the local network then you may use the university’s web-cache. Information about this is found at ITA Be aware that for example gmail will not work behind this proxy.
Tags:Services, Web
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Tuesday, August 14th, 2007
Karl Ove Hufthammer has created an unoffical LaTeX document class for Master’s theses at UiB, which is used by most of the statistics students. The document class and the (very unfinished) documentation can be found at /usr/local/share/texmf/tex/latex/mi.uib.no/uib-mi-master/.
Karl Ove says: Feel free to use it!
For Linux users there is a LaTeX document class at the department called mi-brev. Type texdoc mi-brev in a Linux terminal window to view the documentation for this class. It can also be used for private letters and for faxes. (It should also be possible to copy the class to a compatible TeX system on MS Windows or OS X.)
More templates and pointers are still welcome.
Tags:Software, Templates, TeX/LaTeX
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Tuesday, August 14th, 2007
[Update: The article below was written in 2007. While it is hopefully still correct, it is now perhaps better to use the “eduroam” wireless network instead, see this article. SAS]
The university’s wireless net has SSID UiB. Once you have conncted to the wireless net and opened a browser, a dialog box will pop up. Fill in username and password, and you should be able to browse the net, use ssh, print etc. (See separate post on printing.) WARNING: Guests with kurskonto have username of the form username@kurs
You may want (or need) to connect to the VPN (“virtual private network”). Here the difficult part is that your username is user@ansatt.uib.no for employees, and something analogous for students. Currently the gateway vpn-ansatt.uib.no works for employees (vpn-student.uib.no for students).
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Tags:Services, VPN, Wireless
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Tuesday, August 14th, 2007
Linux: Macaulay2 (including Schubert2!) is part of the standard distribution, at /usr/bin/M2. This may not always be the latest and greatest version, so if you need that, ask Stein Arild or Jan-Magnus for directions.
Mac or Windows PC: You may also run Macaulay2 on your Mac or Windows PC, follow the instruction on http://www.math.uiuc.edu/Macaulay2.
Tags:Mathematics, Software
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Tuesday, August 14th, 2007
It appears that there are at least three ways to set up printing. Two of them require VPN to be set up, the third works when you are connected to the wireless net without having set up VPN. One of them is “the Microsoft way” and the other two more Unix-like. Remember to check that the papersize is correct after having set up the printer!
The Studentwiki provides step-by-step instructions for setting up printing on Ubuntu machines.
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Tags:Printing, Services
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Tuesday, August 14th, 2007
Linux: To run Maple in text mode, type maple in your terminal. To run the full windowed version with worksheets and so on, type xmaple& instead.
Maple can also be run on Macs and Windows PCs.
Tags:Mathematics, Software
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Thursday, August 2nd, 2007
The command “ssh” establishes a login on remote machines. For example the command
ssh alfred
will log you onto the server alfred. (From alfred you have access to your personal web-pages.)
If you use ssh (or scp or sshfs) a lot it will be convenient to use automatic autentification. The command “man ssh” will display information on howto do this. More detailed information will follow later. (If you have a good recipie on howto do this, please leave a comment.)
Tags:Linux, Remote login, Services
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Thursday, August 2nd, 2007
The command sshfs mounts a remote filesystem. For example the command
sshfs alfred:/People/www/mbr085/ www
mounts the filesystem containing my personal web-pages into the directory www. (For this to work an empty directory called www should already exist.)
Tags:File system, Network, Services
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Thursday, August 2nd, 2007
The commands “rsync” and “scp” allow you to copy files to remote servers. For automathic autentification see the post about remote login from linux machines. Please leave a comment if you have questions about this.
Tags:Network, Services
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Wednesday, August 1st, 2007
Storage outside your home directory can be used to share files with others. Moreover, if you need a lot of storage space (more than 6 gigabytes), then your home directory is not big enough.
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Tags:File system, Network, Services
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Wednesday, August 1st, 2007
The procedure for creation of personal webpages is described by
IT-avdelingen. (Norwegian) If you have extra tips for how to handle personal web-pages, please give them as a comment to this post.
Tags:Services, Web
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Wednesday, August 1st, 2007
It is possible to login from outside the university by ssh to login.uib.no. Once inside login.uib.no, you may ssh further from there, e.g. to your department workstation or a computation server (please don’t run heavy tasks on login.uib.no).
Tags:Remote login
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Wednesday, August 1st, 2007
For employees the outgiong server is smtp.uib.no and the incoming server is imap.uib.no. The LDAP server (online address book for all employees and students) is ldap.uib.no, with base DN dc=uib,dc=no and port number 389.
Very useful if you use Thunderbird as your e-mail client. Apple’s Mail.app and probably many other mail programs can also make use of this.
See It-avdelingen for more details.
Tags:Email, Linux
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Wednesday, August 1st, 2007
There are many editors to chose from. Many people prefer Emacs. If you want Emacs to access remote files it will be an advantage to install one of the newer versions of Emacs.
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Tags:Emacs, Software
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