Windows machines

Single-processor machines need the following:

• Cygwin - ROMS_SED works fine on Windows-based machines, but it really helps to use Cygwin
• SVN client - You can use the command-line interface in Cygwin, or a GUI client like TortoiseSVN
• netCDF - Required.

If you want to do coupling (e.g., waves with SWAN), you also need

• MPICH

Also, you need a Fortran compiler. We have experience with

• gfortran (GNU fortran, a Fortran 95 compiler which is a part of GCC compiler)
• g95 Gnu Fortran (based on gcc compiler)
• df Compaq/Digital (no longer being distributed)
• ifort Intel

And a really handy tool is WinMerge

What you need to do

• Install and configure Cygwin
• Install svn
• Install netCDF libraries
• Get a copy of the code
• Edit the makefile
• Type make to compile
• Type ./oceanS < ROMS/External/ocean_upwelling.in

On a Windows desktop with a two single processors, and hyperthreading turned on, you can set: export OMP_NUM_THREADS = 4

Edit makefile to compile with

USE_OpenMP ?= on
...
FORT ?= ifort

Edit ./ROMS/External/ocean_upwelling.in and set

NtileI == 2
NtileJ == 2

and then run ./oceanO < ROMS/External/ocean_upwelling.in But Rich says that it might be faster to set it as 1 x 4, or even 3 x 20 (because with OpenMP, the tiling is not limited to the actual number of processes.