Thursday, June 29, 2006

How to start MonALISA - A reminder for myself

cd to: /home/condor/MonaLisa/Service/CMD
then type:
[condor@grid4 CMD]$ ./MLD start
Password:
Starting UPDATE
..........OK
Trying to start MonaLisa.Please wait...STARTED [ PID == 4427 ]

or better, as root:
Usage: /etc/rc.d/init.d/MLD [start|stop|restart]

Then enjoy the plot from the client:

Monday, June 19, 2006

How to create a big file?

We wanted to do some benchmarks about file transfers between Israel and Singapore.
Here is my way to create a big file, using Octave (Matlab should work as well):

-bash-2.05b$ cat ./big.m
mat=ones(1,1000*1024*1024/8);
size(mat)
save -binary OneGig.dat mat

# here are a few examples:

-bash-2.05b$ ls -l
-rw-r--r-- 1 tel-zur tel-zur 1000M Jun 23 18:19 OneGig.dat

You are welcome to try, but hey! Give me a credit ok ? :)

Here is an update to this post (Nov.16,2006):
The method above can be called the "Physicist Way", Now I will describe the "Computer Geek Way", which is much more elegant of course:

dd if=/dev/zero of=one_gig_file bs=1M count=1000

That's it!

Monday, June 12, 2006

The 3rd IGT HPC work group meeting

The 3rd IGT HPC work group meeting will take place on Wednesday, June 21, 15:00-17:00
For further details click on the link or visit the IGT web site then click on "Next IGT Events"

The wonderful VPN

Using VPN I can now do lots of things as if I am connected from inside the campus:


Bingo! I am connected and able to submit Condor jobs from the departmental terminal server and of course browes magazines from the university library.