How to set up Fortran in Xcode 3.2.4

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Level 1

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How to set up Fortran in Xcode 3.2.4

Hello, I am a college-level Physics student. I am regularly assigned Fortran programs by my professors and I am tired of having to go to the computer lab to do them. I'm relatively new to Xcode, and coding in general (I only work with simple command lines in languages like C++, Fortran, or Mathematica) So I'm not entirely sure exactly how everything works. I apologize for my lack of knowledge!

Ok, so I did some research on this topic and have found that Xcode 3.2.4 has multiple versions of Gcc included, and that these may contain fortran binaries (I'm not 100% sure of what all this means, or if it's correct!) and I have tried downloading things like gfortran, and the fortran plug-in for Xcode, but I still have no idea how to set up my program in xcode! Like i said I just want to be able to run simple command lines in fortran (Anyone who's used Force 2.0 knows EXACTLY what I'm expected to do) Can anyone tell me what I need to do and how to set things up in order to make this work? The more specific the better, because as I said, I'm lacking a lot of knowledge in this department!

Info:
Mac OS 10.6.4
Xcode 3.2.4

I will provide any other necessary info when asked! Thanks for your help!

Macbook Pro 4,1, Mac OS X (10.6.4)

Posted on Nov 6, 2010 10:37 PM

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Answer 1

etresoft

Level 9

57,038 points

Nov 7, 2010 10:47 AM in response to Cardena2717

The two big sources of FORTRAN for MacOS X are:
http://hpc.sourceforge.net/
http://www.g95.org/

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Answer 2

Cardena2717 Author

Level 1

0 points

Nov 7, 2010 11:22 AM in response to etresoft

Yes, I have found both of those, but I'm not sure exactly how to set them up to work. Like I said, I'm new to Xcode and not entirely sure how to set it up to run a fortran code. Neither website really explicitly states how to make it work, it just offers the downloads.

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Answer 3

etresoft

Level 9

57,038 points

Nov 7, 2010 11:33 AM in response to Cardena2717

Xcode is just an IDE. You don't need to use it. You can run these compilers from the command line just like gcc. You can use the "xed" command to use Xcode just as an editor.

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Answer 4

Cardena2717 Author

Level 1

0 points

Nov 7, 2010 12:19 PM in response to etresoft

I know that... But once again my lack of knowledge prevents me from knowing how to compile or run the programs in terminal... Since I have doen some (limited) work in Xcode before I figured it would be the simplest way to make it work. But maybe not. Can you explain the simplest way to run a program like.. let's say this:

C RJP 2-30
real P, R, T, v, v1, a, b
R = 8.3143E3
P = 1.01325E7
T = 300
a = 366E3
b = .0429
i = 0
v = 0
v1 = 0

OPEN (1, file='data.txt')

write (1, 101)
101 format(22x, 'Table 1', /)

write (1, 103)
103 format('Solution of Van der Waal Equation for v by iteration',/)

write (1, 105)
105 format (11x, 'Iteration', 11x, 'v(M^3/mol)', /)

v = (R*T)/P

write(1, 104) i, v
104 format (11x, I5, 17x, f6.4, /)

DO WHILE (v.gt.0.080)

v1 = ((R T)/(P(a/v*2)))b

i = i + 1

v = v1

write(1, 102) i, v
102 format (11x, I5, 17x, f6.4, /)

End Do

close (1)

end

Any help would be greatly appreciated.

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Answer 5

rccharles

Level 6

13,037 points

Nov 7, 2010 2:11 PM in response to Cardena2717

Here is what I did. Haven't run Fortran in years.

I'm running on a ppc & in tiger. Pick the correct version.

download from: http://www.g95.org/downloads.shtml#V0.92 moved download file to ~/g95-powerpc-osx.tgz scan down, you will eventually find your machine & OS x86 OSX HTTP FTP Powerpc OSX HTTP FTP You download file name may be different. Adjust as needed. Macintosh-HD -> Applications -> Utilities -> Terminal created fortran directory mkdir ~/fortran cd ~/fortran tar -zxvf /Users/mac/g95-powerpc-osx.tgz ln -s $PWD/g95-install/bin/*g95* g95 pico copy over source. copy & paste will work. command+v I'm sure the file requires unix line end. Start with pico. C comment line didn't work. save as try.f90 compile ./g95 try.f90 run ./a.out good luck! Here is the official installation instructions. How to install g95: 1) Unpack the downloaded tarball (e.g. g95-x86-linux.tgz) in a directory of your choice: tar -zxvf g95-x86-linux.tgz 2) For your convenience, you can create another symbolic link from a directory in your $PATH (e.g. ~/bin) to the executable ln -s $PWD/g95-install/bin/*g95* ~/bin/g95 You should now be able to run g95 and create executables. To get a list of environment variables that control the library, run a compiled binary with the --g95 option, ie: ./a.out --g95 Have Fun!

------------------

here is the entire terminal log. It's includes all my error. I got your program to run...

in /etc/bashrc in /Users/mac/.bash_profile but claims to be -bash in /Users/mac/config/profile.bash claims to be -bash in . /sw/bin/init.sh mac $ fortran -bash: fortran: command not found mac $ gcc powerpc-apple-darwin8-gcc-4.0.1: no input files mac $ man gcc mac $ cd fortran /Users/mac/fortran mac $ pwd /Users/mac/fortran mac $ tar -zxvf ~/g95-x86-linux.tgz tar (child): /Users/mac/g95-x86-linux.tgz: Cannot open: No such file or directory tar (child): Error is not recoverable: exiting now tar: Child returned status 2 tar: Error exit delayed from previous errors mac $ tar -zxvf /Users/mac/g95-powerpc-osx.tgz g95-install g95-install/bin g95-install/bin/powerpc-apple-darwin6.8-g95 g95-install/G95Manual.pdf g95-install/INSTALL g95-install/lib g95-install/lib/gcc-lib g95-install/lib/gcc-lib/powerpc-apple-darwin6.8 g95-install/lib/gcc-lib/powerpc-apple-darwin6.8/4.0.3 g95-install/lib/gcc-lib/powerpc-apple-darwin6.8/4.0.3/cc1 g95-install/lib/gcc-lib/powerpc-apple-darwin6.8/4.0.3/crt2.o g95-install/lib/gcc-lib/powerpc-apple-darwin6.8/4.0.3/f951 g95-install/lib/gcc-lib/powerpc-apple-darwin6.8/4.0.3/libf95.a g95-install/lib/gcc-lib/powerpc-apple-darwin6.8/4.0.3/libgcc.a g95-install/lib/gcc-lib/powerpc-apple-darwin6.8/4.0.3/libgcc_eh.a g95-install/lib/gcc-lib/powerpc-apple-darwin6.8/4.0.3/libgcc_s.1.0.dylib g95-install/lib/gcc-lib/powerpc-apple-darwin6.8/4.0.3/libgcc_s.dylib mac $ ls g95-install/ mac $ ls -k g95-install/ mac $ ls -k g95-install/ mac $ ls -l total 0 drwxr-xr-x 6 mac staff 204 Jun 25 2009 g95-install/ mac $ pico mac $ echo $PWD /Users/mac/fortran mac $ ln -s $PWD/g95-install/bin/*g95* g95 mac $ ls -l total 16 lrwxr-xr-x 1 mac staff 62 Nov 7 16:29 g95@ -> /Users/mac/fortran/g95-install/bin/powerpc-apple-darwin6.8-g95 drwxr-xr-x 6 mac staff 204 Jun 25 2009 g95-install/ -rw-r--r-- 1 mac staff 555 Nov 7 16:27 try.f mac $ g95 try.f -bash: g95: command not found mac $ ./g95 g95: no input files mac $ ./g95 try.f In file try.f:2 real P, R, T, v, v1, a, b 1 Error: Non-numeric character in statement label at (1) In file try.f:2 real P, R, T, v, v1, a, b 1 Error: Unclassifiable statement at (1) In file try.f:3 R = 8.3143E3 1 Error: Non-numeric character in statement label at (1) In file try.f:3 R = 8.3143E3 1 Error: Unclassifiable statement at (1) In file try.f:4 P = 1.01325E7 1 Error: Non-numeric character in statement label at (1) In file try.f:4 P = 1.01325E7 1 Error: Unclassifiable statement at (1) In file try.f:5 T = 300 1 Error: Non-numeric character in statement label at (1) In file try.f:5 T = 300 1 Error: Unclassifiable statement at (1) In file try.f:6 a = 366E3 1 Error: Non-numeric character in statement label at (1) In file try.f:6 a = 366E3 1 Error: Unclassifiable statement at (1) In file try.f:7 b = .0429 1 Error: Non-numeric character in statement label at (1) In file try.f:7 b = .0429 1 Error: Unclassifiable statement at (1) In file try.f:8 i = 0 1 Error: Non-numeric character in statement label at (1) In file try.f:8 i = 0 1 Error: Unclassifiable statement at (1) In file try.f:9 v = 0 1 Error: Non-numeric character in statement label at (1) In file try.f:9 v = 0 1 Error: Unclassifiable statement at (1) In file try.f:10 v1 = 0 1 Error: Non-numeric character in statement label at (1) In file try.f:10 v1 = 0 1 Error: Unclassifiable statement at (1) In file try.f:12 OPEN (1, file='data.txt') 1 Error: Non-numeric character in statement label at (1) In file try.f:12 OPEN (1, file='data.txt') 1 Error: Unexpected array reference at (1) Fatal Error: Too many errors, aborting. mac $ ls -l total 16 lrwxr-xr-x 1 mac staff 62 Nov 7 16:29 g95@ -> /Users/mac/fortran/g95-install/bin/powerpc-apple-darwin6.8-g95 drwxr-xr-x 6 mac staff 204 Jun 25 2009 g95-install/ -rw-r--r-- 1 mac staff 555 Nov 7 16:27 try.f mac $ mv try.f try.f90 mac $ ls -l total 16 lrwxr-xr-x 1 mac staff 62 Nov 7 16:29 g95@ -> /Users/mac/fortran/g95-install/bin/powerpc-apple-darwin6.8-g95 drwxr-xr-x 6 mac staff 204 Jun 25 2009 g95-install/ -rw-r--r-- 1 mac staff 555 Nov 7 16:27 try.f90 mac $ g95 try.f90 -bash: g95: command not found mac $ ./g95 try.f90 In file try.f90:1 C RJP 2-30 1 Error: Unclassifiable statement at (1) mac $ pico try.f90 mac $ ./g95 try.f90 mac $ ls -l total 1024 -rwxr-xr-x 1 mac staff 515192 Nov 7 16:43 a.out* lrwxr-xr-x 1 mac staff 62 Nov 7 16:29 g95@ -> /Users/mac/fortran/g95-install/bin/powerpc-apple-darwin6.8-g95 drwxr-xr-x 6 mac staff 204 Jun 25 2009 g95-install/ -rw-r--r-- 1 mac staff 544 Nov 7 16:43 try.f90 mac $ ./a.out mac $ ls -l total 1032 -rwxr-xr-x 1 mac staff 515192 Nov 7 16:43 a.out* -rw-r--r-- 1 mac staff 1399 Nov 7 16:43 data.txt lrwxr-xr-x 1 mac staff 62 Nov 7 16:29 g95@ -> /Users/mac/fortran/g95-install/bin/powerpc-apple-darwin6.8-g95 drwxr-xr-x 6 mac staff 204 Jun 25 2009 g95-install/ -rw-r--r-- 1 mac staff 544 Nov 7 16:43 try.f90 mac $ cat data.txt Table 1 Solution of Van der Waal Equation for v by iteration Iteration v(M^3/mol) 0 0.2462 1 0.1971 2 0.1705 3 0.1527 4 0.1394 5 0.1290 6 0.1206 7 0.1135 8 0.1076 9 0.1027 10 0.0985 11 0.0950 12 0.0921 13 0.0898 14 0.0878 15 0.0862 16 0.0849 17 0.0838 18 0.0830 19 0.0823 20 0.0818 21 0.0814 22 0.0810 23 0.0808 24 0.0806 25 0.0804 26 0.0803 27 0.0802 28 0.0801 29 0.0800 30 0.0800 mac $

Robert

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Answer 6

Cardena2717 Author

Level 1

0 points

Nov 7, 2010 2:33 PM in response to rccharles

I'm starting to see that this may be over my head... As I understood very little of all that. If anyone has a simpler solution to use Fortran in Xcode, a free fortran IDE I can use, or a simpler way to install g95 and use it in Terminal, let me know. When I have more time I will attempt to do what was just shown to me above. Thank you guys for your help! Sorry im so lost when it comes to mac programming...

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Answer 7

Feb 18, 2011 7:45 AM in response to Cardena2717

Speaking as someone who's been where you're at, I will have to say that the best thing for you to do is to invest the time and effort into figuring out how to setup, compile, and run things from the command line. This is something you will most likely be expected to do routinely if you continue as a physicist, and it will be impossible to avoid bigger, complicated programs that require things like Makefiles and linking many files together.

Just my two cents.

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