[MITgcm-support] [EXTERNAL] MITgcm Support Request

[Dimitris Menemenlis]

Hi Sara, did you install gfortran and gcc under MS Windows or under Cygwin.  You need the latter.
As far as I know, MITgcm is not supported directly under MS Windows.

Note that Cygwin is not a very efficient way to run MITgcm — I used to use Cygwin ~20 years ago but there are better options now.
I recommend that you install a linux distro on your laptop or workstation, either via dual-boot or in a virtual machine.

If you decide to go with virtual machine, there is some step-by-step example instructions here for MITgcm on VirtualBox:
https://github.com/MITgcm-contrib/ecco_darwin/blob/master/MITgcm_VirtualBox.txt <https://github.com/MITgcm-contrib/ecco_darwin/blob/master/MITgcm_VirtualBox.txt>

Cheers, Dimitris


> On Sep 12, 2020, at 11:24 AM, Miller, Sara G <smiller85 at gatech.edu> wrote:
> 
> Hello,
> 
> I am new to MITgcm and programming with command line, so thank you in advance for your help and patience!
> 
> I am trying to run the global ocean circulation tutorial I downloaded from Github. I am using Git Bash and have installed the Git version of MITgcm. I have also installed gfortran (/c/MinGW/bin/gfortran) and gcc (/c/MinGW/bin/gcc).
> 
> I receive an error when trying to use genmake2. The following are print-outs of the errors I receive:
> 
> $ ../../../tools/genmake2 -mods ../code
> 
> GENMAKE :
> 
> A program for GENerating MAKEfiles for the MITgcm project.
>    For a quick list of options, use "genmake2 -h"
> or for more detail see the documentation, section "Building the model"
>    (under "Getting Started") at:  https://mitgcm.readthedocs.io/ <https://mitgcm.readthedocs.io/>
> 
> ===  Processing options files and arguments  ===
>   getting local config information:  none found
> Warning: ROOTDIR was not specified ; try using a local copy of MITgcm found at "../../.."
>   getting OPTFILE information:
> Warning: no OPTFILE specified so we'll look for possible settings
> 
> ===  Searching for possible settings for OPTFILE  ===
>   The platform appears to be:  mingw64_nt-10.0-18363_amd64
> 
> Error: No Fortran compilers were found in your path.  Please specify one using:
> 
>     1) an "optfile" on (eg. "-optfile=path/to/OPTFILE"),
>     2) a command-line option (eg. "-fc NAME"), or
>     3) the FC or MITGCM_FC environment variables.
> 
> I do not see any options in the build options directory that matches my platform (mingw64_nt-10.0-18363_amd64). I have also installed Cygwin64 to be able to run Linux commands, thinking I could use a Linux build option. However, when I try to specify a Linux optfile, I reveive the following error:
> 
> $ ../../../tools/genmake2 -mods ../code -optfile=../../../tools/build_options/linux_amd64_gfortran
> 
> GENMAKE :
> 
> A program for GENerating MAKEfiles for the MITgcm project.
>    For a quick list of options, use "genmake2 -h"
> or for more detail see the documentation, section "Building the model"
>    (under "Getting Started") at:  https://mitgcm.readthedocs.io/ <https://mitgcm.readthedocs.io/>
> 
> ===  Processing options files and arguments  ===
>   getting local config information:  none found
> Warning: ROOTDIR was not specified ; try using a local copy of MITgcm found at "../../.."
>   getting OPTFILE information:
>     using OPTFILE="../../../tools/build_options/linux_amd64_gfortran"
> ../../../tools/build_options/linux_amd64_gfortran: line 131: nf-config: command not found
>   getting AD_OPTFILE information:
>     using AD_OPTFILE="../../../tools/adjoint_options/adjoint_default"
>   check Fortran Compiler...  fail to compile  (set FC_CHECK=0/5)
>   check makedepend (local: 0, system: 1, 1)
> ERROR: test: 'make -f Makefile genmake_hello.for' Failed
>        see simple makefile: 'Makefile' (left here)
>   Please check (1) your 'make' command, (2) your 'ln -s' command
>            and (3) the allowed sufix '.F' and '.for' in makefile
>   or contact the <MITgcm-support at mitgcm.org <mailto:MITgcm-support at mitgcm.org>> list for help.
> 
> Any advice you have for me is very much appreciated!
> 
> Best regards,
> Sara
> 
> 
> Sara G. Miller (she/her/hers)
> PhD Student | School of Earth and Atmospheric Sciences
> Georgia Institute of Technology
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