[RegCNET] Parallel RegCM3 code

[BI XUNQIANG]

Dear All:

For those people are anxious to try the new parallel code (otherwise you
can wait our formal release),

the beta version is at:

http://www.ictp.trieste.it/~bixq/RegCM3_beta.APR2006.tar.gz

Under Main directory, it's just one code for both serial 
(ln -sf 0options/0_NODIAG_SERIAL_CODE MAKECODE)
and parallel
(ln -sf 0options/0_NODIAG_PARALLEL_CODE MAKECODE)

And the parallel code works well with both IBM linux cluster and IBM SP
supercomputer, and you can get exactly the same results by using different 
number of CPU as serial results, and restart works perfectly.

TerrainS is merged into Terrain.

Aerosol and dust codes are coupled (but need to be improved).

Since the parallel environment depends on the computer platform, it's
impossible for us to prepare the Makefile. In ICTP's IBM PC cluster,
I use Makefile_CL2 as my Makefile.

And you are welcome to prepare your own Makefile and email me back the 
Makefile which works for you.

Good luck !
Xunqiang Bi