Fortran Code Help!

**Tammer** · 21st March 2005

I have to do a project at uni, which involves using some fortran codes to gain results for some numerical formulas.

I've hardly looked at a fortran code in my life, and was told to run this one for tomorrow. Unfortunately my supervisor has the flu, and won't be able to give any advice for the next week or so, so i'm left on my own.

After removing the errors i compiled, but when i tried to run it gave me:

sue: unformatted io not allowed
apparent state: unit 21 named Q.dat
lately reading sequential unformatted external IO
Abort.

Any ideas on how to fix the problem. Have attached the file below.

Also, on a side note, where would be the best site to find basic notes on how using fortran.

Thanks in advance

**Freekie_Freddie** · 21st March 2005

http://www.openmp.org/drupal/present...penMPv1_v2.pdf
http://www.ibiblio.org/pub/languages/fortran/unfp.html
http://www.fortran.com
http://www.lahey.com/other.htm
http://www.nsc.liu.se/~boein/fortran.html
http://www.personal.psu.edu/faculty/...k/fortran.html

Google is your friend!

**Conkers** · 21st March 2005

fook me FORTRAN ???

They tried to teach me that @ uni 10 years ago..... it was as utterly irrelevant then as it is now.
The beardy old tw@ts that teach this drivvel need to get a job in the real world and realise that crap like this sunk with the ark !!

Tell 'em to get fooked and write it in C !

(not my most useful reply I'll grant you

, sorry !)

**Shambles** · 21st March 2005

Tammer. It's 20 years since I last wrote Fortran. If you're reading directly into INTEGER don't you need a FORMAT statement? Failing that are you sure chan21 ain't empty before the indices are exhausted (ie EOF)?

Can you read directly into "Q" as a 64bit real without a format picture?

**RhinoBanga** · 22nd March 2005

Originally Posted by pingobingo

fook me FORTRAN ???

They tried to teach me that @ uni 10 years ago..... it was as utterly irrelevant then as it is now.
The beardy old tw@ts that teach this drivvel need to get a job in the real world and realise that crap like this sunk with the ark !!

Tell 'em to get fooked and write it in C !

(not my most useful reply I'll grant you

, sorry !)

Wrong, in the scientific community Fortran is still used extensively due to it's speed.

We use it extensively where I work (geophysical data analysis) and we have proved that it beats C/C++ in many computational tasks on a variety of different platforms (AMD64/HP/SUN/SGI).

However saying all that give me C/C++ anyday as it's a crap language to work with.

**Conkers** · 22nd March 2005

Originally Posted by RhinoBanga

However saying all that give me C/C++ anyday as it's a crap language to work with.

lol..... really though considering how many students heads are being filled with this crap, how many actually end up using it....

**/dev/null** · 24th March 2005

Maths processing speed...?

Code:

MOV     R1, #0x4
MOV     R2, #0x3
ADD     R0, R1, R2

Stick that into an ARM processor and see who wins!

**RhinoBanga** · 24th March 2005

LOL ... I think 99% of people would prefer to write in at least a 3GL.

**/dev/null** · 24th March 2005

Ye, I was trying to make the point that if you want fast code then you gotta work for it, hehe!

Actually though, I prefer coding in Assembly than in any 3GL!

[that's in context - I wouldn't choose ASM over C for a program on windows etc, however I prefer coding in ASM for small hardware systems rather than coding in C etc for large windows/unix systems! - if that makes sense!

]