WRFV300 on Mac G5 (XLF compiler)

Here are alterations to the stock WRF version 3.0.0 release I had to get it working on Mac/G5 equipment. This was tested on Macs using Tiger. Everything is 32 bit. The diffwrf program does not compile, but can probably be made to work fairly easily.

(1) Here are replacement files for the arch directory: configure_new.defaults, noopt_exceptions_f, and postamble_new

(2) Replacement file for the external/RSL_LITE directory: makefile

(3) Replacement file for the frame directory: frame.Makefile (rename as Makefile)

(4) Replacement file for the dyn_em directory: module_first_rk_step_part1.F

The file module_first_rk_step_part1.F is altered to remove unnecessary whitespace in the subroutine call to surface_driver. As it is, the number of characters in that call exceeds the allowable maximum for xlf on the Mac.

This image shows performance for the two-domain June 2001 test case on a G5 cluster (mpich1, no fancy interconnects whatsoever), a 12 hour run on the number of cpus indicated. The real times are the relevant numbers.