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Computational Biomolecular Engineering Lab (CBEL) Wiki

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Prof. Pengyu Ren

Biomedical Engineering Department

The University of Texas at Austin

Contents 1 Read the lab policy 2 Summer 2008 absence 3 Lab meeting schedule 2008 Spring 4 How to edit the Wiki 5 Lab Notebook Computers 6 Computer Custer administration 7 Wiki Help

Read the lab policy

Lab:lab_policy

Summer 2008 absence

Oscar 5/28 to 7/7 (Wedding and honeymoon) Jenny 5/28 to 7/7 John Fonner: 6/3 - 6/16

Lab meeting schedule 2008 Spring

• Every Friday From 2:30pm-4:00pm

How to edit the Wiki

a white space in the beginning of sentence creates a box.
* a star gives a bullet (no white space in the beginning)
** double star indents

How to create a internal link: 
 [[Research:page_name|link_name]]> which gives link_name
 where Research is a spacename (predefined), page_name is whatever you like. 
 If the page doesn't exist, you will be able to create it.

How to create an external link:
 [http://www.somexyz.org Link_name], which gives a link to external website.
  or  [http://www.google.com], which gives [1]
  or give the address http://.... directly

To list avaliable pages in a namespace (like research):
  click on special pages, then all pages and choose "Research" from the pull down.

How to upload file
  lick on Upload file on the side bar, or alt-u
  you can link to the file after you uploaded it by specifying  [[ Image:File.pdf ]] in your page.

To change the sidebar: Mediawiki:Sidebar

• Configuration settings list
• MediaWiki FAQ
• MediaWiki release mailing list

Lab Notebook Computers

Two notebook computers are available for presentations/group meetings. Contact Johnny or Pavel if you need to use it. Login with username Lab, password ens618.

Computer Custer administration

• great tips for secure system: http://www.puschitz.com/SecuringLinux.shtml#EnforcingStrongerPasswords
• User Setup
• Install ganglia: installation howto
• CPU frequency scaling is on sometime by default

**/usr/sbin/cpufreq-selector -g performance The first CPU core will run at 100% afterwards. This command however only affect the first core. 
** Do the following to change the other cores: cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor

• other miscellanous

• Mail server how to
• Temperature sensor is enabled!
  • gkrellm and configure to show temperature and cpu load
  • To install lmsensor on sun:

yum install ksensors 
yum install lm_sensors 
coretemp for node19 -30 won;t be available until 2.26.22

run

/usr/sbin/sensors-detect 
sensors -s sensors -h
yum install gkrellm

• Another command line tool to find out load of a myltiprocessor node is
  • mpstat -P ALL (rpm -ivh /opt/software/rehl4-rpms/sysstat*rpm)

• to enable nfs
  • start /etc/init/nsf and portmap
  • copy: exports,hosts,hosts.allow,hosts.deny
  • /etc/sysconfig/iptables (restart iptables)

• to remotely boot nodes see /usr/local/binwake_node
  • /sbin/ether-wake 00:13:D4:B9:44:40

• Sun backup
  • The entire /home directory is backed up daily to biomol:/backup/home.daily/bk.day.0
  • The backup is incremental, i.e., it only records changes compared to bk.day.1, which is incremental to bk.day.2, etc. The backup goes back 7 days (bk.day.6)

Wiki Help

Consult the User's Guide for information on using the wiki software.

MediaWiki:Sidebar for editing the side bar (root)