[MITgcm-support] MITgcm on Mac OS X

[Ed Hill]

Hi folks,

We now have a Mac OS X system (a loaner G5), so heres a very brief
"HOWTO" list to help you get MITgcm running on that platform.  If you
notice any errors or can suggest improvements, please send a response.

This information will eventually get added to the "MITgcm Developers
HOWTO" at:

  http://mitgcm.org/devel_HOWTO/  

Also, attached is the output from:

  cd MITgcm/verification
  ./testreport -ieee -of=../tools/build_options/darwin_ppc_g77

which shows that all of the test suite will compile and run with g77. 
The handful of "FAILs" appear to be just machine precision issues.

Ed

===  Mac OS X Notes  ===

1) In order to distinguish between ".F" and ".f" files using make 
   (or Gnu make), you'll need a UFS (instead of the default HFS+) 
   filesystem.  So create a UFS (or "Unix") filesystem using either the 
   DiskCopy utility (which creates a "loopback"-like disk image) or a 
   native partition on the hard disk.  The latter approach should be 
   preferred as its likely to be faster (would someone please 
   check/benchmark the difference?).

2) Install the free (registration required to download) Apple-provided 
   developer's bundle which includes a copy of GCC (the "Gnu Compiler 
   Collection") at:  http://developer.apple.com/macosx/

3) Install fink:  http://fink.sourceforge.net/

4) Install g77 using "apt-get install g77"

5) If necessary, install bash, cvs, and/or other basic utilities using 
   the fink-provided "apt-get install ..." commands

6) Download (or get from CVS) a copy of MITgcm and make sure to place 
   it within the UFS partition or "Volume"

7) At this point, your Apple should work just like other Unix systems.
   And *please* report any errors/problems you encounter to:

     <MITgcm-support at mitgcm.org>

===  Mac OS X Notes  ===


-- 
Edward H. Hill III, PhD
office:  MIT Dept. of EAPS;  Room 54-1424;  77 Massachusetts Ave.
            Cambridge, MA 02139-4307
email:   eh3 at mit.edu,  ed at eh3.com
URL:     http://web.mit.edu/eh3/
phone:   617-253-0098
fax:     617-253-4464
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