Common OpenGL Exception

this is a kind of exception that happens normally when u r coding with opengl, whether using Tao framework for C# or native opengl
when u run the opengl program and u find it just crashes with no reason
then one of the main reason is the function “glutInit()“
this function initializes the GLUT which should be initialized only ONCE per program run
and if this function fails to initialize -for many reasons- but with me mainly because it’s called more than a time, it crashes the program and just closes it
so just make sure u call this function only once..

Configure MPI programs in eclipse

Al Salamu 3alykom Wa Ra7matULLAH

if u r familiar with the distributed computing, then u have used,seen or even heard about MPICH

well, here are the steps u follow to make and run an MPICH program

1-download and install the MPICH executable form their website

2-include the headers and add the lib files

3-write ur program and build it

4-and after solving the errors that will reveal in ur code go to the mpich bin directory -All programs in the start menu if u r a windows user- and open the mpirun program and browse for the executable u have built, configure the number of processes to run and finally run in

well…

Hidden Options [2]

after  Hidden Options

here is the second post with the hidden options i’ve been collecting since then…

1-On Windows

• Ctrl+C

some times you need to copy the contents of a message box and the text is unselectable

just press Ctrl+C when this message box is in focus and all it’s contents will be copied

Thanx to Roaa “The Undocumented Feature”

Troubleshooting in ACM-ICPC Contest

i’ve participated in many contests as organizer, specifically in the technical stuff which is mainly two portions

• The IDE which is mainly “eclipse“
• The contest communication tool which can’t be except “pc2″

and in the last contest i’ve participated in it’s technical preparations i faced a number of troubles

lets take them one by one

1.Teams don’t connect to the Server which is a Linux Machine

• Solution : before you open the server edit the “pc2server” file and edit this line
• java -Djava.security.policy=policy.ini $PC2CN $*
• to be
• java -Djava.rmi.server.hostname=”10.106.0.35″ -Djava.security.policy=policy.ini $PC2CN $*
• of course change the ip according to your server ip

and make this edit in all the executables you will run {team, board, judge…..}

With Ubuntu

bye bye MS !!

i said those words one day that i started to install Linux

i had a fear that i go back to windows a day or more after i install it, but now i dont think that i’m going back to windows

i can feel that my computer feels democracy

every time i look on the requirments for a software , game or windows i look on the minimum requirments section to see if my PC will handle it or not as i know that the recommended requirments will be not in my PC

with linux i saw the minimum , recommended and searched for any other requirments to see

this is the recomended requirments published on Ubuntu official website

• 700 MHz x86 processor
• 384 MB of system memory (RAM)
• 8 GB of disk space
• Graphics card capable of 1024×768 resolution

• Sound card

• A network or Internet connection

lol, i feel that i can run this OS on a gameboy and it will run smoothly

New To Vista (episode 4) [then... thats it]

hi..

long time since i last wrote here

frankly alot of things have changed

the most obvious change that happened is my Operating System

yes the “Vista” after three months

actually it didn’t crash but it almost crashed more than a time and recovered which was a nice feature there “more stable than XP” thats what i feel

but

SUN SPOT

just this video will make you feal ” :O “

psssst.. Somebody’s watchin’

well

i’m gonna start with an apologize to google

i thought they had a stupid bug in thier chrome

but some how they were not the stupid … neither were I

i’m gonna show you what happened every time i use chrome to navigate to any website

Hidden Options

Well..

there are alot of options in different programs that are not typically hidden but we don’t know about it

because no one is going to read the manual of every program he uses

and those options sometimes are sooooo useful so i’m gonna list the things that i know and if u have some then u can share them

New To Vista (episode 3) [have to be fair]

1 Week since i’ve installed Vista for the first time

i faced some problems since then but i think they have been solved

the memory consumption is stable except when i burn DVD’s it raise up to 9x %

but i have to be fair and mention what i liked in it as i mentioned what i didn’t like -alot -

in those posts

New To Vista

New To Vista (episode 2) [Trying to survive]